Showing posts from August, 2009Show All
news
World's smallest laser created by scientists
he breakthrough heralds a revolution in optical technology, paving the way to ''nanolasers'' that can probe and manipulate DNA, and s…
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news
World's smallest laser created by scientists
he breakthrough heralds a revolution in optical technology, paving the way to ''nanolasers'' that can probe and manipulate DNA, and s…
Read more
news
World's smallest laser created by scientists
he breakthrough heralds a revolution in optical technology, paving the way to ''nanolasers'' that can probe and manipulate DNA, and s…
Read more
article
special relativity
Newton's laws of motion give us a complete description of the behavior moving objects at low speeds. The laws are different at speeds reached by …
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article
Superconductivity
If mercury is cooled below 4.1 K, it loses all electric resistance. This discovery of superconductivity by H. Kammerlingh Onnes in 1911 was followed …
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news
Jupiter Opposition On 14th August, 2009
Jupiter reaches opposition on August 14th, 22:55 hours local time (17:10 GMT/UT) where it will be 4.0278 Astronomical Units (AU) from Earth. AU is th…
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news
Twin Paradox
The Twin Paradox of Einstein is an interesting thought experiment involving two twins (who are nearly exactly the same age), one of whom sets out on …
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news
Why is c the symbol for the speed of light:-
The symbol c seems to have been used for the speed of light (in vacuum) for a long time. Einstein used other symbols such as V in his early relativit…
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news
news
Intriduction to black hole
Introduction to Black Holes What is a black hole? A black hole is a region of spacetime from which nothing can escape, even light. To see why this ha…
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interesting
Physics jokes
When a third grader was asked to cite Newton's first law, she said, "Bodies in motion remain in motion, and bodies at rest stay in bed unles…
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Notice
Notice
WHAT CAN WE DO FOR PHYSICS?
we are in nepal where scope of science too weak. there are few graduate of science whose main aim is is not in field of science but on how to go …
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science
Newton's law of gravitation. Practice questions
Force (WORKout questions.) 1. What is free fall? 2. What is grav…