ishi nigam

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Nano-Tweezers Can Move Molecules With Light

Just in case you were getting bored with the world, we bring you a tiny tweezer made of light beams.<p>Scientists have created the tiniest "tweezers" known to date, which can move around objects the size of single molecules with a "bow tie" of light.<p>"To my knowledge these are the smallest tweezers …

Nanotech

Watch GLaDOS from 'Portal' explain the difference between fission and fusion

Do you know the difference between nuclear fission and nuclear fusion? Here's a teacher guaranteed to hold your attention in class. GLaDOS, the hilarious homicidal artificial intelligence from the <i>Portal</i> games, explains the two nuclear reactions in a new video produced by NASA. While she isn't …

A computer made a math proof the size of Wikipedia, and humans can't check it

If you thought the mathematical proofs you did in high school were long, you haven't seen the newest one out of the University of Liverpool — computer scientists Alexei Lisitsa and Boris Konev came up with a math proof that takes up a huge 13-gigabyte file, greater than all of Wikipedia's pages …

Why Does White Noise Help People Sleep?

A white noise machine is the simplest solution to blocking out noise.<p>On its face, flipping on white noise before hitting the sack must be the most counterintuitive idea out there. Want to sleep better? Simple solution: make a bunch of noise. Sweet dreams ahoy.<p>And yet, not only do some people swear …

Mathematics

68 Chocolate Desserts for Valentine's Day (or Any Day, Really)

From cookies to cakes to mousse, these rich, melty, chocolaty desserts are way better than anything from a box.<p>It's hard to think of a Valentine's Day plan that doesn't involve food. Specifically, dessert. Even more specifically, a <b>chocolate dessert</b>. Give it to us in a cookie, a layered cake, a …

Dessert

20 Amazing Chemical Reaction GIFs

Blood meets hydrogen peroxide<p>Source: Iitmne<p>Sodium acetate crystallization<p>Source: Imgur<p>Belousov–Zhabotinsky reaction<p>Source: GIF Trunk<p>Water bridge …

Why you can't travel at the speed of light

Albert Einstein is famous for many things, not least his theories of relativity. The first, the special theory of relativity, was the one that began the physicist's reputation for tearing apart the classical worldview that had come before. Special relativity, a way of relating the motion of objects …

Black holes should be redefined, says Stephen Hawking in new paper

Black holes don't actually exist in the way we traditionally think of them, renowned physicist Stephen Hawking has proposed in a short but potentially revolutionary paper.<p>Classical theory holds that no energy or information can ever escape a black hole, but the principles of quantum physics suggest …

Burning Magnesium in Water - Periodic Table of Videos

3 Amazing Coincidences in Our Solar System: What Could They Mean?

1. Ancient astronomy seems to predict knowledge of atoms only discovered in 1913<p>In antiquity, the planets were associated with seven known metals. …

Universe

WATCH: Scientists Suspend Objects in Midair with Sound Waves

No smoke, no mirrors, just sound was all scientists needed to levitate objects in midair.<p>NPR reports that researchers at the University of Tokyo have …

Albert Einstein Reads ‘The Common Language of Science’ (1941)

Here's an extraordinary recording of Albert Einstein from the fall of 1941, reading a full-length essay in English:<p>The essay is called "The Common …

thatscienceguy:

Proof of the Pythagoras Theorem.

6 Chemical Reaction GIFs That Will Make You a Smarter Person

Remember how much fun your high school chemistry class was? Neither do we. But that may be because there weren't enough explosions. Well, nowadays, …