Make 3D Snowflakes with paper

Should be easy and fun to do... if I've time and nothing else to do I might give it a try.

How big is the Earth?

Click the picture to compare the size of Earth with other planets and stars in our Universe. Makes me feel humble... very humble!

Carl Sagan on Evolution

An amazing 8 minute animated video where Carl Sagan (late American astronomer, astrobiologist, author of numerous popular science books) summarizes our evolution, spanning 4 billion years.

Juggle with 3 balls

A very nice video by Jason Garfield, one of the professional jugglers in the world, who teaches you step by step, how to juggle with three balls. Watch and learn the art on Google Video.

Buffalo buffalo Buffalo buffalo buffalo buffalo Buffalo buffalo

What is the most weird grammatically correct sentence that you know? Brace yourself because it may put you in a spin for a while. The following is a proper English sentence...
"Buffalo buffalo Buffalo buffalo buffalo buffalo Buffalo buffalo."

Here Buffalo is used with three different meanings.
a) Buffalo, New York the city
b) The animal buffalo, in plural - equivalent to buffaloes
c) To deceive

So what it means is Buffaloes in buffalo who are buffaloed by buffaloes in Buffalo,buffalo buffaloes in Buffalo.

It is a grammatically correct sentence used as an example of how homonyms and homophones can be used to create complicated constructs. It has been known to exist since 1972 when the sentence was used by William J. Rapaport, currently an associate professor at the University at Buffalo. It was posted to Linguist List by Rapaport in 1992. It was also featured in Steven Pinker's 1994 book The Language Instinct.

Sentences of this type, although not in such a refined form, have been known for a long time. A classical example is a proverb "Don't trouble trouble until trouble troubles you".

Visit Wikipedia for more information on this sentence, including the detailed grammatical construct and other similar examples.