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Thursday, 27 September 2012


1. The First Batteries

The first battery was created by Alessandro Volta in 1798. The first rechargeable battery has been around since 1859, when French physicist Gaston Plante invented the lead acid cell. The lead acid cell is still used in cars today.

However, evidence of batteries dates back to over 2000 years ago. In 1938, Wilhelm Konig discovered in Iraq a 5 inch pottery jar containing a copper cylinder encased in an iron rod. This is believed to be an ancient form of battery.

2. Rechargeable Batteries

Batteries work due to a chemical reaction inside the battery that causes electrons to flow from the negative to positive terminal of the battery. When all of the chemicals inside the battery have reacted, the battery is spent. When you recharge a battery, you’re essentially reversing the chemical reaction using electrical energy.

3. Battery Energy Usage

The energy used to manufacture rechargeable and single-use batteries is 50 times greater than the electrical energy they produce when been discharged.

4. The Memory Effect

This is an effect that nickel-cadmium (NiCad) rechargeable batteries suffer from. If a NiCad battery is recharged before being discharged fully, it ‘forgets’ that it is able to discharge any more energy.

For example, pretend a battery is capable of storing 100 units of energy. You use 40 units, then charge the battery up again to 100 units. In your mind, the battery contains 100 units again, but the memory effect means the battery essentially can only release up to 40 units of energy.

5. No Battery Lasts Forever

All batteries, including rechargeables, eventually die. This is because the chemicals inside the battery degrade over time and with usage.

6. UK Battery Regulations

From 1st January 2010, all manufacturers and importers of batteries in to the UK will be responsible for the cost of collection and recovery of waste batteries. Thankfully, there are battery recycling services who will handle the battery recycling for you. It won’t be long before other countries start to follow this regulation too.

7. Mercury in Batteries

The single largest source of mercury metal is found in household batteries, particularly in alkaline and button cells.

Legislation from the EU Parliament, namely WEEE Directive 2003, states that manufacturers of alkaline batteries have made a commitment to remove all mercury from batteries. However, mercury is an integral part of button batteries and cannot be eliminated completely.

8. Nickel Cadmium in Batteries

One NiCad mobile phone or power tool battery is enough to pollute 600,000 litres of water! That’s equivalent to a third of an Olympic sized swimming pool.

9. Losing Charge

Rechargeable batteries will lose a percentage of their charge each day when left off the charger. Therefore try and charge rechargeable batteries hours before you intend to use them.

You should also avoid leaving rechargeable batteries discharged for long periods of time, otherwise the batteries will degrade much more quickly when left discharged for 6 months or more.

10. Terms such as “Heavy Duty” are misleading

Since there are no real industry standards for batteries, many terms used by battery manufacturers have become misleading marketing hype. Although the terms didn’t start out as being misleading, “Heavy Duty” batteries are often the least powerful batteries you can buy!

Monday, 24 September 2012

Branches of Science

Branches of Science

  • Acoustics : The study of sound (or the science of sound).
  • Aerodynamics : The study of the motion and control of solid bodies like aircraft, missiles, etc., in air.
  • Aeronautics : The science or art of flight.
  • Aeronomy : The study of the earth's upper atmosphere, including its composition, density, temperature and chemical reactions, as recorded by sounding rockets and earth satellites.
  • Aerostatics : The branch of statics that deals with gases in equilibrium and with gases and bodies in them.
  • Aetiology : The science of causation.
  • Agrobiology : The science of plant life and plant nutrition.
  • Agronomy : The science of soil management and the production of field crops.
  • Agrostology : The study of grasses.
  • Alchemy : Chemistry in ancient times.
  • Anatomy : The science dealing with the structure of animals, plants or human body.
  • Anthropology : The science that deals with the origins, physical and cultural development of mankind.
  • Arboriculture : Cultivation of trees and vegetables.
  • Archaeology : The study of antiquities.
  • Astrochemistry : The study of interstellar matter with a view to knowing the origin of
  • Astrology : The ancient art of predicting the course of human destinies with the help of indications deduced from the position and movement of the heavenly bodies.
  • Astronautics : The science of space travel.
  • Astronomy : The study of the heavenly bodies.
  • Astrophysics : The branch of astronomy concerned with the physical nature of heavenly bodies.
  • Autoecology : The study deals with the ecology of species.
  • Bacteriology : The study of bacteria.
  • Biochemistry : The study of chemical processes of living things.
  • Bioclimatology : Studies the effects of climate upon living organisms.
  • Biology : The study of living things.
  • Biometry : The application of mathematics to the study of living things.
  • Biomechanics : The study of the mechanical laws relating to the movement or structure of living organisms.
  • Biometeorology : Studies the effects of atmospheric conditions on living organisms.
  • Bionics : The study of functions, characteristics and phenomena observed in the living world and the application of this knowledge to the world of machines.
  • Bionomics : The study of the relation of an organism to its environments.
  • Bionomy : The science of the laws of life.
  • Biophysics : The physics of vital processes (living things).
  • Botany : The study of plants.
  • Ceramics : The art and technology of making objects from clay, etc. (pottery).
  • Chemistry : The study of elements and their laws of combination and behaviour.
  • Chemotherpy : The treatment of disease by using chemical substances.
  • Chronobiology : The study of the duration of life.
  • Chronology : The science of arranging time in periods and ascertaining the dates and historical order of past events.
  • Climatotherapy : The treatment of disease through suitable climatic environment, often, but not always, found in recognised health resorts. As climate is subject to seasonal variations, the required environment may have to be sought in different
    localities at different periods of the year.
  • Conchology : The branch of zoology dealing with the shells of mollusks.
  • Cosmogony : The science of the nature of heavenly bodies.
  • Cosmography : The science that describes and maps the main features of the universe.
  • Cryobiology : The science that deals with the study of organisms, especially warmblooded animals, at low temperature. The principal effect of cold on living tissues is destruction of life or preservation of it at a reduced level of activity.
  • Crystallography : The study of the structure, forms and properties of crystals.
  • Cryogenics : The science dealing with the production, control and application of very low temperatures.
  • Cryotherapy : Use of cold, but not freezing cold, as a form of treatment. Hypothermia may be deliberately induced during surgery, for instance, to decrease a patient's oxygen requirement.
  • Cytochemistry : The branch of cytology dealing with the chemistry of cells.
  • Cytogenetics : The branch of biology dealing with the study of heredity from the point of view of cytology and genetics.
  • Cytology : The study of cells, especially their formation, structure and functions.
  • Dactylography : The study of fingerprints for the purpose of identification.
  • Dermatology : The study of skin and skin diseases.
  • Ecology : The study of the relation of animals and plants to their surroundings, animate and inanimate.
  • Econometrics : The application of mathematics in testing economic theories.
  • Economics : The science dealing with the production, distribution and consumption of goods and services.
  • Electronics : Studies the development, behaviour and applications of electronic devices and circuits.
  • Electrostatics : It is a study of static electricity.
  • Embryology : The study of development of embryos.
  • Entomology : The study of insects.
  • Epidemiology : The branch of medicine dealing with epidemic diseases.
  • Epigraphy : The study of inscriptions.
  • Ethnography : A branch of anthropology dealing with the scientific description of individual cultures.
  • Ethnology : A branch of anthropology that deals with the origin, distribution and distinguishing characteristics of the races of mankind.
  • Ethology : The study of animal behaviour.
  • Eugenics : The study of the production of better offspring by the careful selection of parents.
  • Fractography : A study of fractures in metal surfaces.
  • Genealogy : The study of family origins and history. It includes the compilation of lists of ancestors and arranging them in pedigree charts.
  • Genecology : The study of genetical composition of plant population in relation to their habitats.
  • Genesiology : The science of generation.
  • Genetics : The branch of biology dealing with the phenomena of heredity and the laws governing it.
  • Geobiology : The biology of terrestrial life.
  • Geobotany : The branch of botany dealing with all aspects of relations between plants and the earth's surface.
  • Geochemistry : The study of the chemical composition of the earth's crust and the changes which take place within it.
  • Geodesy : Methods of surveying the earth for making maps and corelating geological, gravitational and magnetic measurements. It is a branch of geo-physics.
  • Geography : The development of science of the earth's surface, physical features, climate, population, etc.
  • Geology : The science that deals with the physical history of the earth.
  • Geomedicine : The branch of medicine dealing with the influence of climate and environmental conditions on health.
  • Geomorphology : The study of the characteristics, origin and development of land forms.
  • Geophysics : The physics of the earth.
  • Gerontology : The study of old age, its phenomena, diseases, etc.
  • Glaciology : The study of ice and the action of ice in all its forms, and therefore includings now.
  • Gynaecology : A study of diseases of women's reproductive organs.
  • Histology : The study of tissues.
  • Horticulture : The cultivation of flowers, fruits, vegetables and ornamental plants.
  • Hydrodynamics : The mathematical study of the forces, energy and pressure of liquid in motion.
  • Hydrography : The science of water measurements of the earth with special reference to their use for navigation.
  • Hydrology : The study of water with reference to its occurrence and properties in the hydrosphere and atmosphere.
  • Hydrometallurgy : The process of extracting metals at ordinary temperature by bleaching ore with liquids.
  • Hydrometeorology : The study of the occurrence, movement and changes in the state of water in the atmosphere.
  • Hydropathy : The treatment of disease by the internal and external use of water.
  • Hydroponics : The cultivation of plants by placing the roots in liquid nutrient solutions rather than in soil.
  • Hydrostatics : The mathematical study of forces and pressures in liquids.
  • Hygiene : The science of health and its preservation.
  • Limnology : The study of lakes.
  • Lithology : It deals with systematic description of rocks.
  • Mammography : Radiography of the mammary glands.
  • Metallography : The study of the crystalline structures of metals and alloys.
  • Metallurgy : The process of extracting metals from their ores.
  • Meteorology : The science of the atmosphere and its phenomena.
  • Metrology : The scientific study of weights and measures.
  • Microbiology : The study of minute living organisms, including bacteria, molds and
    pathogenic protozoa.
  • Molecular biology : The study of the structure of the molecules which are of importance in biology.
  • Morpbology : The science of organic forms and structures.
  • Mycology : The study of fungi and fungus diseases.
  • Neurology : The study of the nervous system, its functions and its disorders.
  • Neuropathology : The study of diseases of the nervous system.
  • Nosology : The classification of diseases.
  • Numerology : The study of numbers. The study of the date and year of one's birth and to determine the influence on one's future life.
  • Odontology : The scientific study of the teeth.
  • Optics : The study of nature and properties of light.
  • Ornithology : The study of birds.
  • Orthopedics : The science of prevention, diagnosis and treatment of diseases and abnormalities of musculoskeletal system.
  • Osteology : The study of the bones.
  • Osteopathy : A therapeutic system based upon detecting and correcting faulty structure.
  • Otology : The study of the ear and its diseases.
  • Otorhinolaryngology : Study of diseases of ear, nose and throat.
  • Paleobotany : The study of fossil plants.
  • Paleontology : The study of fossils.
  • Pathology : The study of diseases.
  • Pharyngology : The science of the pharynx and its diseases.
  • Phenology : The study of periodicity phenomena of plants.
  • Philology : The study of written records, their authenticity, etc.
  • Phonetics : The study of speech sounds and the production, transmission, reception, etc.
  • Photobiology : The branch of biology dealing with the effect of light on organisms.
  • Phrenology : The study of the faculties and qualities of minds from the shape of the skull.
  • Phthisiology : The scientific study of tuberculosis.
  • Phycology : The study of algae.
  • Physical Science : The study of natural laws and processes other than those peculiar to living matters, as in physics, chemistry and astronomy.
  • Physics : The study of the properties of matter.
  • Physiography : The science of physical geography.
  • Physiology : The study of the functioning of the various organs of living beings.
  • Phytogeny : The science dealing with origin and growth of plants.
  • Planetology : A study of the planets of the Solar System.
  • Pomology : The science that deals with fruits and fruit growing.
  • Psychology : The study of human and animal behaviour.
  • Radio Astronomy : The study of heavenly bodies by the reception and analysis of the radio frequency electro-magnetic radiations which they emit or reflect.
  • Radiobiology : The branch of biology which deals with the effects of radiations on living organlsms.
  • Radiology : The study of X-rays and radioactivity.
  • Rheology : The study of the deformation and flow of matter.
  • Seismology : The study of earthquakes and the phenomena associated with it.
  • Selenology : The scientific study of moon, its nature, origin, movement, etc.
  • Sericulture : The raising of silkworms for the production of raw silk.
  • Sociology : The study of human society.
  • Spectroscopy : The study of matter and energy by the use of spectroscope.
  • Statistics : The collection and analysis of numerical data.
  • Tectonics : Study of structural features of earth's crust.
  • Teleology : The study of the evidences of design or purpose in nature.
  • Telepathy : Communication between minds by some means other than sensory perception.
  • Therapeutics : The science and art of healing.
  • Topography : A special description of a part or region.
  • Toxicology : The study of poisons.
    Virology : The study of viruses.
  • Zoogeography : The study of the geological distributions of animals.
  • Zoology : The study of animal life.
  • Zootaxy : Classification of animals.

Tuesday, 18 September 2012

More than 100 Keyboard Shortcuts must read

Keyboard Shorcuts (Microsoft Windows)
1. CTRL+C (Copy)
2. CTRL+X (Cut)
... 3. CTRL+V (Paste)
4. CTRL+Z (Undo)
5. DELETE (Delete)
6. SHIFT+DELETE (Delete the selected item permanently without placing the item in the Recycle Bin)
7. CTRL while dragging an item (Copy the selected item)
8. CTRL+SHIFT while dragging an item (Create a shortcut to the selected item)
9. F2 key (Rename the selected item)
10. CTRL+RIGHT ARROW (Move the insertion point to the beginning of the next word)
11. CTRL+LEFT ARROW (Move the insertion point to the beginning of the previous word)
12. CTRL+DOWN ARROW (Move the insertion point to the beginning of the next paragraph)
13. CTRL+UP ARROW (Move the insertion point to the beginning of the previous paragraph)
14. CTRL+SHIFT with any of the arrow keys (Highlight a block of text)
SHIFT with any of the arrow keys (Select more than one item in a window or on the desktop, or select text in a document)
15. CTRL+A (Select all)
16. F3 key (Search for a file or a folder)
17. ALT+ENTER (View the properties for the selected item)
18. ALT+F4 (Close the active item, or quit the active program)
19. ALT+ENTER (Display the properties of the selected object)
20. ALT+SPACEBAR (Open the shortcut menu for the active window)
21. CTRL+F4 (Close the active document in programs that enable you to have multiple documents opensimultaneou sly)
22. ALT+TAB (Switch between the open items)
23. ALT+ESC (Cycle through items in the order that they had been opened)
24. F6 key (Cycle through the screen elements in a window or on the desktop)
25. F4 key (Display the Address bar list in My Computer or Windows Explorer)
26. SHIFT+F10 (Display the shortcut menu for the selected item)
27. ALT+SPACEBAR (Display the System menu for the active window)
28. CTRL+ESC (Display the Start menu)
29. ALT+Underlined letter in a menu name (Display the corresponding menu) Underlined letter in a command name on an open menu (Perform the corresponding command)
30. F10 key (Activate the menu bar in the active program)
31. RIGHT ARROW (Open the next menu to the right, or open a submenu)
32. LEFT ARROW (Open the next menu to the left, or close a submenu)
33. F5 key (Update the active window)
34. BACKSPACE (View the folder onelevel up in My Computer or Windows Explorer)
35. ESC (Cancel the current task)
36. SHIFT when you insert a CD-ROMinto the CD-ROM drive (Prevent the CD-ROM from automatically playing)
Dialog Box - Keyboard Shortcuts
1. CTRL+TAB (Move forward through the tabs)
2. CTRL+SHIFT+TAB (Move backward through the tabs)
3. TAB (Move forward through the options)
4. SHIFT+TAB (Move backward through the options)
5. ALT+Underlined letter (Perform the corresponding command or select the corresponding option)
6. ENTER (Perform the command for the active option or button)
7. SPACEBAR (Select or clear the check box if the active option is a check box)
8. Arrow keys (Select a button if the active option is a group of option buttons)
9. F1 key (Display Help)
10. F4 key (Display the items in the active list)
11. BACKSPACE (Open a folder one level up if a folder is selected in the Save As or Open dialog box)

Microsoft Natural Keyboard Shortcuts
1. Windows Logo (Display or hide the Start menu)
2. Windows Logo+BREAK (Display the System Properties dialog box)
3. Windows Logo+D (Display the desktop)
4. Windows Logo+M (Minimize all of the windows)
5. Windows Logo+SHIFT+M (Restorethe minimized windows)
6. Windows Logo+E (Open My Computer)
7. Windows Logo+F (Search for a file or a folder)
8. CTRL+Windows Logo+F (Search for computers)
9. Windows Logo+F1 (Display Windows Help)
10. Windows Logo+ L (Lock the keyboard)
11. Windows Logo+R (Open the Run dialog box)
12. Windows Logo+U (Open Utility Manager)
13. Accessibility Keyboard Shortcuts
14. Right SHIFT for eight seconds (Switch FilterKeys either on or off)
15. Left ALT+left SHIFT+PRINT SCREEN (Switch High Contrast either on or off)
16. Left ALT+left SHIFT+NUM LOCK (Switch the MouseKeys either on or off)
17. SHIFT five times (Switch the StickyKeys either on or off)
18. NUM LOCK for five seconds (Switch the ToggleKeys either on or off)
19. Windows Logo +U (Open Utility Manager)
20. Windows Explorer Keyboard Shortcuts
21. END (Display the bottom of the active window)
22. HOME (Display the top of the active window)
23. NUM LOCK+Asterisk sign (*) (Display all of the subfolders that are under the selected folder)
24. NUM LOCK+Plus sign (+) (Display the contents of the selected folder)
25. NUM LOCK+Minus sign (-) (Collapse the selected folder)
26. LEFT ARROW (Collapse the current selection if it is expanded, or select the parent folder)
27. RIGHT ARROW (Display the current selection if it is collapsed, or select the first subfolder)
Shortcut Keys for Character Map
After you double-click a character on the grid of characters, you can move through the grid by using the keyboard shortcuts:
1. RIGHT ARROW (Move to the rightor to the beginning of the next line)
2. LEFT ARROW (Move to the left orto the end of the previous line)
3. UP ARROW (Move up one row)
4. DOWN ARROW (Move down one row)
5. PAGE UP (Move up one screen at a time)
6. PAGE DOWN (Move down one screen at a time)
7. HOME (Move to the beginning of the line)
8. END (Move to the end of the line)
9. CTRL+HOME (Move to the first character)
10. CTRL+END (Move to the last character)
11. SPACEBAR (Switch between Enlarged and Normal mode when a character is selected)
Microsoft Management Console (MMC)
Main Window Keyboard Shortcuts
1. CTRL+O (Open a saved console)
2. CTRL+N (Open a new console)
3. CTRL+S (Save the open console)
4. CTRL+M (Add or remove a console item)
5. CTRL+W (Open a new window)
6. F5 key (Update the content of all console windows)
7. ALT+SPACEBAR (Display the MMC window menu)
8. ALT+F4 (Close the console)
9. ALT+A (Display the Action menu)
10. ALT+V (Display the View menu)
11. ALT+F (Display the File menu)
12. ALT+O (Display the Favorites menu)

MMC Console Window Keyboard Shortcuts
1. CTRL+P (Print the current page or active pane)
2. ALT+Minus sign (-) (Display the window menu for the active console window)
3. SHIFT+F10 (Display the Action shortcut menu for the selected item)
4. F1 key (Open the Help topic, if any, for the selected item)
5. F5 key (Update the content of all console windows)
6. CTRL+F10 (Maximize the active console window)
7. CTRL+F5 (Restore the active console window)
8. ALT+ENTER (Display the Properties dialog box, if any, for theselected item)
9. F2 key (Rename the selected item)
10. CTRL+F4 (Close the active console window. When a console has only one console window, this shortcut closes the console)
Remote Desktop Connection Navigation
1. CTRL+ALT+END (Open the Microsoft Windows NT Security dialog box)
2. ALT+PAGE UP (Switch between programs from left to right)
3. ALT+PAGE DOWN (Switch between programs from right to left)
4. ALT+INSERT (Cycle through the programs in most recently used order)
5. ALT+HOME (Display the Start menu)
6. CTRL+ALT+BREAK (Switch the client computer between a window and a full screen)
7. ALT+DELETE (Display the Windows menu)
8. CTRL+ALT+Minus sign (-) (Place a snapshot of the active window in the client on the Terminal server clipboard and provide the same functionality as pressing PRINT SCREEN on a local computer.)
9. CTRL+ALT+Plus sign (+) (Place asnapshot of the entire client window area on the Terminal server clipboardand provide the same functionality aspressing ALT+PRINT SCREEN on a local computer.)

Microsoft Internet Explorer Keyboard Shortcuts
1. CTRL+B (Open the Organize Favorites dialog box)
2. CTRL+E (Open the Search bar)
3. CTRL+F (Start the Find utility)
4. CTRL+H (Open the History bar)
5. CTRL+I (Open the Favorites bar)
6. CTRL+L (Open the Open dialog box)
7. CTRL+N (Start another instance of the browser with the same Web address)
8. CTRL+O (Open the Open dialog box,the same as CTRL+L)
9. CTRL+P (Open the Print dialog box)
10. CTRL+R (Update the current Web page)
11. CTRL+W (Close the current window)

list of Important Days

Important Days

January 9 NRI Day
January 10 World Laughter Day
January 12 National Youth Day
January 15 Army Day
January 26 India's Republic Day, International Customs Day
January 30 Martyrs' Day; World Leprosy Eradication Day

2nd Sunday of February World Marriage Day
February 24 Central Excise Day
February 28 National Science Day
Second Monday March Commonwealth Day
March 8 International Women's Day; Intl. literacy Day
March 15 World Disabled Day; World Consumer Rights Day
March 18 Ordnance Factories Day (India)
March 21 World Forestry Day; International Day for the Elimination of Racial Discrimination
March 22 World Day for Water
March 23 World Meteorological Day
March 24 World TB Day
April 5 International Day for Mine Awareness; National Maritime Day
April 7 World Health Day
April 17 World Haemophilia Day
April 18 World Heritage Day
April 21 Secretaries' Day
 April 22 Earth Day
April 23 World Book and Copyright Day
May 1 Workers' Day (International Labour Day)
May 3 Press Freedom Day; World Asthma Day
May 2nd Sunday Mother's Day
May 4 Coal Miners' Day
May 8 World Red Cross Day
May 9 World Thalassaemia Day
May 11 National Technology Day
May 12 World Hypertension Day; International Nurses Day
May 15 International Day of the Family
May 17 World Telecommunication Day
May 24 Commonwealth Day
May 31 Anti-tobacco Day
June 4 International Day of Innocent Children Victims of Aggression
June 5 World Environment Day
June 3rd Sunday Father's Day
June 14 World Blood Donor Day
June 26 International Day against Drug Abuse and Illicit Trafficking
July 1 Doctor's Day
July 6 World Zoonoses Day
July 11 World Population Day
August 3 Internatioal Friendship Day
August 6 Hiroshima Day
August 8 World Senior Citizen's Day
August 9 Quit India Day, Nagasaki Day
August 15 Indian Independence Day
August 18 IntI. Day of the World's Indigenous Peoples
August 19 Photography Day
August 29 National Sports Day
September 2 Coconut Day
September 5 Teachers' Day; Sanskrit Day
September 8 World Literacy Day (UNESCO)
 September 15 Engineers' Day
September 16 World Ozone Day
September 21 Alzheimer's Day; Day for Peace & Non-violence (UN)
September 22 Rose Day (Welfare of cancer patients)
September 26 Day of the Deaf
September 27 World Tourism Day
October 1 International Day for the Elderly
October 2 Gandhi Jayanthi
October 3 World Habitat Day
October 4 World Animal Welfare Day
October 8 Indian Air Force Day
October 9 World Post Office Day
October 10 National Post Day
October 2nd Thursday World Sight Day
October 13 UN International Day for Natural Disaster Reduction
October 14 World Standards Day
October 15 World White Cane Day (guiding the blind)
October 16 World Food Day
October 24 UN Day; World Development Information Day
October 30 World Thrift Day
November 9 Legal Services Day
November 14 Children's Day; Diabetes Day
November 17 National Epilepsy Day
November 20 Africa Industrialisation Day
November 29 International Day of Solidarity with Palestinian People
December 1 World AIDS Day
December 3 World Day of the Handicapped
December 4 Indian Navy Day
December 7 Indian Armed Forces Flag Day
December 10 Human Rights Day; IntI. Children's Day of Broadcasting
December 18 Minorities Rights Day (India)
December 23 Kisan Divas (Farmer's Day) (India)

Tuesday, 11 September 2012

10 Facebook Tricks You Don’t Know (Maybe)

10 Facebook Tricks You Don’t Know (Maybe)

With almost a billion users the tricks and tips have become increasing stronger thanks to the thousands of developers and Facebook users like you who spread th

ese tricks and tips quickly across your network. Today we would like to report a list published on Tecca - 20 tips and tricks for Facebook extensions. Here are our top 10.

1. Become invisible to some contacts

From the advanced settings of Facebook chat (for access to click on the gear in the lower right corner on the chat) you can choose to activate the chat only for certain users or lists and then be disconnected for everyone else.

2. Reposition photos on your timeline

With the introduction of the timeline came a large focus for Facebook as they've given more importance to photos. They occupy large spaces in the timeline and you can reposition the photo previews for a stronger timeline composition.
Move the cursor over one of your timeline photos and in the upper right click on the pencil, choose "Reposition Photo..."
You can now move the photo by dragging it with the mouse and selected the best photo placement to display that photo. Finally, Save the image.

3. Add photos to the map

Facebook's timeline included a map where you can add the pictures to the places visited. Visit your profile, go to the map by clicking on the box under the cover image. Finally, click on the top "Add photos to map" and in so doing you will have a nice and clear picture of all the places you've visited.

4. Hide apps notifications

Visiting your account settings, you'll see the notifications ( direct link - button where you can browse then find the applications that are allowed to notify you with pop ups. From here you can choose to turn off notifications for any unwanted application.

5. Add high-quality pictures

When you publish photos be sure to select the high resolution box. This way, the photos will be beautiful and receive more likes, comments and shares.

6. Use the "Display as" to understand how your friends see your timeline

What do your your friends see when they arrive on your timeline? Each of them could see your timeline in a different way, it all depends on your privacy settings. To see how your friend (or a friend) sees your timeline click on the gear under your cover image and choose "View As ...".

7. Download your entire history from Facebook

On Facebook, you can request and download a backup of all your data. This includes status updates, friends, photos, links and daily news etc.. Facebook now offers a new file that adds additional information to the extended history.

8. Forward conversations

To share a conversation on Facebook you do not need to copy and paste. Facebook has made available, on any conversation, the ability to forwarding messages. Just open the message page, select the conversation and click on the "Actions" menu and select "Forward".

9. Disable chat

If you're tired of seeing all the chat windows that open (with friends that greet you) as soon as you go on Facebook, turn Facebook chat off and turn it on only when you need it.
To turn off chat click on the gear in the lower right corner on the chat box and choose "Turn off Chat." You can activate it at any time by clicking on the toothed wheel, also you can even open any conversation with a friend and click "Enable chat".

10. Use Facebook to create a business card

Would you like to have a business card with the style of the timeline? The service is offered by an application partnership with Facebook.
You can create your business cards in two ways. The first is to change the display language to English (U.S. English), visit the profile page and go to the "About" tab (personal information), go down to the the contact card and click on the icon you see in the image.
Alternatively, you can visit the official site and use the application without having to change any display language.



♥ Love makes you smarter ♥
Falling in love induces a calming effect on the body and mind by raising levels of nerve growth for about a year. This hormone-like substance helps to restore the nervous system and improves memory by triggering the growth of new brain cells.
(Sify News 2007.)

♥ Love helps fight cancer ♥
A new study from the University of Iowa found that ovarian cancer patients with a strong sense of connection to others and satisfying relationships had more vigorous"natura l killer"cell activity at the site of their tumours than those who didn't have those social ties. (These desirable white blood cells kill cancerous cells as part of the body's immune system.)
(Dr Vermon Coleman, author and GP.)

♥ Love benefits your immune, endocrine and cardiovascular systems ♥
We may also pay a price if we don't give love. Research shows that loving acts neutralise the kind of negative emotions that adversely affect immune, endocrine and cardiovascular function.
(Stephen Post Ph.D professor of bioethics and religion at Ohio's Case Western University.)

♥ Love is good for your heart ♥
The brain becomes"fired up"when talking to someone it finds attractive and sends impulses to the heart making it pound three times faster than normal. This results in increased blood supply to the body, specifically the cheeks and sexual organs, which gives us the feeling of butterflies in the stomach.
(Dr John Marsden PhD. chartered psychologist and senior lecturer at London's Institute of Psychiatry.)

A study conducted at the University of North Carolina found that couples who spent time in close physical contact, including hugging and talking with each other, had higher levels of oxytocin — the love hormone. Women also benefited from lower blood pressure. The authors speculated that greater oxytocin levels may increase the probability of future positive interactions, so that oxytocin and partner bonding reciprocate in a positive feedback loop.

So go and give someone a hug and help your heart!

♥ Love makes you live longer ♥
Studies have indicated that a lack of love causing social isolation increases the risk of early death by up to five times. Feeling connected is essential to good health.
(Dean Ornish MD, author of Love and Survival: 8 Pathways to Intimacy and Health.)

Research carried out at The Institute for Research on Unlimited Love, suggests that selfless love can increase our immunity by de-stressing us as well as possibly extending our life spans and improving our mental health states, including reducing depression, for those who focus their attention on giving or helping others. So why not get out and get involved in a charity project?

♥ Love can lower your cholesterol ♥
Research has shown that expressing your feelings of affection can reduce cholesterol levels. A study in Human Communication Research found that people who wrote about their feelings of affection for significant friends, relatives, and/or romantic partners had significantly lower cholesterol levels than those that didn't.

♥ Love is the elixir of youth ♥
The endorphins produced by the body when in love increase blood flow to the skin, which helps keep it soft and smooth, and reduce the development of wrinkles. The increased supply of essential food and oxygen to skin cells when in love also give the face a pinker, healthier glow.

Monday, 10 September 2012

Everyday Science Simplified

  • Q.   A man with a load jumps from a high building. What will be the load experienced by him?
    A.   Zero, because the acceleration of his fall is equal to the acceleration due to gravity of the earth.
  • Q.   A piece of chalk when immersed in water, emits bubbles. Why ?
    A.   Chalk consists of pores forming capillaries. When it is immersed in water, the water begins to rise in the capillaries and air present there is expelled in the form of bubbles.
  • Q.   Why does a liquid remain hot or cold for a long time inside a thermos flask?
    A.  The presence of air, a poor conductor of heat, between the double glass wall of a thermos flask, keeps the liquid hot or cold inside a flask for a long time.
  • Q.   Why does a ball bounce upon falling?
    A.   When a ball falls, it is temporarily deformed. Because of elasticity, the ball tends to regain its original shape for which it presses the ground and bounces up (Newton's Third Law of Motion).
  • Q.   Why is standing in boats or double decker buses not allowed, particularly in the upper deck of buses?
    A.   On tilting the centre of gravity of the boat or bus is lowered and it is likely to overturn.
  • Q.   Why is it recommended to add salt to water while boiling dal?
    A.   By addition of salt the boiling point of water gets raised which helps in cooking.
  •  Q.   Why is the boiling point of sea water more than that of pure water?
    A.    Sea water contains salt, and other impurities with different boiling points, which jointly raise its boiling point.
  • Q.   Why is it easier to spray water to which soap is added?
    A.   Addition of soap decreases the surface tension of water. The energy for spraying is directly proportional to surface tension.
  • Q.   Which is more elastic, rubber or steel?
    A.   Steel is more elastic for the same stress produced compared with rubber.
  • Q.   Why is the sky blue?
    A.   Violet and blue light have short waves which are scattered more than red light waves. While red light goes almost straight through the atmosphere, blue and violet light are scattered by particles in the atmosphere. Thus, we see a blue sky.
  • Q.   Why does ink leak out of partially filled pen when taken to a higher altitude?
    A.   As we go up, the pressure and density of air goes on decreasing. A partially filled pen leaks when taken to a higher altitude because the pressure of air acting on the ink inside the tube of the pen is greater than the pressure of the air outside.
  • Q.   On the moon, will the weight of a man be less or more than his weight on the earth?
    A.   The gravity of the moon is one-sixth that of the earth; hence the weight of a person on the surface of the moon will be one-sixth of his actual weight on earth.
  • Q.   Why do some liquids burn while others do not?
    A.    A liquid burns if its molecules can combine with oxygen in the air with  the production of heat. Hence, oil burns but water does not.
  • Q.   Why can we see ourselves in a mirror?
    A.    We see objects when light rays from them reach our eyes. As mirrors have a shiny surface, the light rays are reflected back to us and enter our eyes.
  • Q.   Why does a solid chunk of iron sink in water but float in mercury?
    A.    Because the density of iron is more than that of water but less than that of mercury.
  • Q.   Why is cooking quicker in a pressure cooker?
    A.    As the pressure inside the cooker increases, the boiling point of water is raised, hence, the cooking process is quicker.
  • Q.   When wood burns it crackles. Explain?
    A.    Wood contains a complex mixture of gases and tar forming vapours trapped under its surface. These gases and tar vapours escape, making a crackling sound.
  • Q.   Why do stars twinkle?
    A.    The light from a star reaches us after refraction as it passes through various layers of air. When the light passes through the earth's atmosphere, it is made to flicker by the hot and cold ripples of air and appears as if the stars are twinkling.
  • Q.   Why is it easier to roll a barrel than to pull it?
    A.    Because the rolling force of friction is less than the dynamic force of sliding friction.
  • Q.   If a feather, a wooden ball and a steel ball fall simultaneously in a vacuum, which one of these would fall faster?
    A.    All will fall at the same speed in vacuum because there will be no air resistance and the earth's gravity will exert a similar gravitational pull on all.
  • Q.   When a man fires a gun, he is pushed back slightly. Why?
    A.    As the bullet leaves the nozzle of the gun's barrel with momentum in a forward direction, as per Newton's Third Law of Motion, the ejection imparts to the gun an equal momentum in a backward direction.
  • Q.   Ice wrapped in a blanket or saw dust does not melt quickly. Why?
    A.    Both wood and wool are bad conductors of heat. They do not permit heat rays to reach the ice easily.
  • Q.   Why do we perspire on a hot day?
    A.    When the body temperature rises, the sweat glands are stimulated to secrete perspiration. It is nature's way to keep the body cool. During the process of evaporation of sweat, body heat is taken away, thus, giving a sense of coolness.
  • Q.   Why does ice float on water but sink in alcohol?
    A.    Because ice is lighter than water it floats on it. However, ice is heavier than alcohol and therefore it sinks in alcohol.
  • Q.   Why do we perspire before rains?
    A.    Before the rain falls, the atmosphere gets saturated with water vapour, as a result, the process of evaporation of sweat is delayed.
  • Q.   Why does a thermometer kept in boiling water show no change in reading after 100°C?
    A.    The boiling point of water is 100°C. Once water starts boiling at this temperature, thermometer records no change in temperature. The quantity of heat supplied is being utilised as latent heat of evaporation to convert the water at boiling point into vapour.
  • Q.   Why do we bring our hands close to the mouth while shouting across to someone far away?
    A.    By keeping hands close to mouth the sound is not allowed to spread (phenomenon of diffraction of sound) in all directions but is directed to a particular direction and becomes louder.
  • Q.   Why does a corked bottle filled with water burst if left out on a frosty night?
    A.    Because of low temperature the water inside the bottle freezes. On freezing it expands, thereby its volume increases and pressure is exerted on the walls.
  • Q.   Why is a small gap left at the joint between two rails?
    A.    To permit expansion of rails due to heat generated by friction of a moving train.
  • Q.   Why cannot a copper wire be used to make elements in electric heater?
    A.    Copper melts at I08.3°C and forms a black powder on reacting with atmospheric oxygen. For heater elements a metal should have more resistance to produce heat.
  • Q.   Why are water or mercury droplets always round .when dropped on a clean glass?
    A.  The surface of a liquid is the seat of a special force as a result of which molecules on the surface are bound together to form something like a stretched membrane. They tend to compress the molecules below to the smallest possible volume which causes the drop to take a round shape as for a given mass the sphere has minimum volume.
  • Q.   Why does a balloon filled with hydrogen rise in the air?
    A.    Weight of hydrogen is less than the weight of air displaced by it. In balloons hydrogen is normally filled because it is lighter than air.
  • Q.   Why do we lean forward while climbing a hill?
    A.    In order to keep the vertical line passing through our centre of gravity always between our feet, which is essential to attain equilibrium or stability.

Saturday, 8 September 2012


*The adult human body requires about 88 pounds of oxygen daily.
*It is very common for babies in New Zealand to sleep on sheepskins. This is to help them gain weight faster, and retain their body heat.
*An average women has 17 square feet of skin. When a women is in her ninth month of pregnancy she has 18.5 square feet of skin.
*The width of your armspan stretched out is the length of your whole b
*41% of women apply body or hand moisturizer a minimum three times a day.
*A human's small intestine is 6 meters long.
*There are as many hairs per square inch on your body as a chimpanzee. You don't see all of them because mostare too fine and light to be noticed.
*Every hour one billion cells in the body must be replaced.
*Dead cells in the body ultimately go to the kidneys for excretion.
*By walking an extra 20 minutes every day, an average person will burn off seven pounds of body fat in an year.
*The human body is 75% water.*Babies are born with 300 bones - adults have 206
*Your lungs are the only organs in yourbody that float
*Bones are 4 times stronger than concrete
*The average duration of sexual intercourse for humans is 2 minutes.
*The human brain is about 85% water.
*In one day, a human sheds 10 billion skin flakes. This amounts to approximately two kilograms in a year.
*Every square inch of the human body has about 19,000,000 skin cells.
*Approximately 25% of all scald burns to children are from hot tap water andis associated with more deaths than with any other liquid.
*Forty-one percent of women apply body and hand moisturizer at least three times a day.
*Every hour one billion cells in the body must be replaced.
The world record for the number of body piercing on one individual is 702,which is held by Canadian Brent Moffat.
*The small intestine in the human bodyis about 2 inches around, and 22 feet long.
*The human body makes anywhere from1 to 3 pints of saliva every 24 hours.
*The human body has approximately 37,000 miles of capillaries.
*The aorta, which is largest artery located in the body, is about the diameter of a garden hose.