intresting info
Friday, 8 August 2014
Monday, 9 June 2014
Facts about statue of liberty
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Thursday, 5 June 2014
Aurora
An aurora is a natural light display in the sky (from the Latin word aurora, "sunrise" or the Roman goddess of dawn) related to the Viking God Thor and the history of the earliest Vikings, especially in the high latitude (Arctic and Antarctic) regions, caused by the collision of solar wind and magnetospheric charged particles with the high altitude atmospherce (thermosphere). Most auroras occur in a band known as the auroral zone,which is typically 3° to 6° wide in latitude and observed at 10° to 20° from the geomagnetic poles at all local times (or longitudes), but often most vividly around the spring and autumn equinoxes. The charged particles and solar wind are directed into the atmosphere by the Earth's magnetosphere. A geomagnetic strom expands the auroral zone to lower latitudes.
Saturday, 12 April 2014
The world's smallest guiter is the size of a red blood cell.
The world's smallest guiter--carved out of crystalline silicon and no larger than a single cell--has been made at cornell university to demonstrate a new tecnolygy that could have a variety of uses in fiber optics,displays,sensors and electronics.
The "nanoguiter"--made for fun to illustrate the tecnology--is that one of several structure that cornell researchrs believe are the world's smallest silicon mechanical device.
The "nanoguiter"--made for fun to illustrate the tecnology--is that one of several structure that cornell researchrs believe are the world's smallest silicon mechanical device.
Tuesday, 8 April 2014
Thursday, 3 April 2014
Tuesday, 1 April 2014
when awake,Brain generates enough electricity to power a lightbulb
Inside your head is a jelly-like organ that controls everything you do. Without it, you wouldn't be able to think, run, dance or even breathe. But what makes your brain so special?
Your brain is like a powerful computer. It stores memories and controls how you move, breathe, think and react. Compared to other mammals about the same size as you, you have a big brain.
Your brain has lots of folds and wrinkles. The wrinkles increase the area of your brain, making lots of space for you to make connections between brain cells. More connections equal more brain power!
Here are our top five brain facts:
- When you're awake, your brain generates enough electricity to power a lightbulb.
- You have the same number of brain cells at birth as you do in adulthood. As you learn and store memories, these brain cells grow and you make new connections between them.
- Your brain makes up 2% of your body's weight, but uses 20% of your body's energy.
- The left side of your brain controls the right side of your body. The right side of your brain controls the left side of your body.
- James Watson, a famous scientist, once said the brain is "the most complex thing we have yet discovered in our universe."
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