jrfgraveley's channel

Why do some years have an extra leap day and what is it for?

Also check out MinutePhysics' video: http://www.youtube.com/watc... & SciS...

"That performance made me certain that he is the best musician alive."

- Gary Bartz on Stevie Wonder's performance of "My One and Only Love"

Live ...

►http://twitch.tv/ChessNetwork

This is a LIVE blitz chess game with commentary played on ChessCube. Time controls are set at 5 minutes per player.

The basic physics behind how rockets work! (plus a special announcement)

Perimeter Institute: http://www.pitp.ca

VomitPhysics video: http://www.y...

When a tube spins with an X and an O labelled at either end, why do we see only one letter during the rotation?

It's leap year time... so what are years, anyway? And what do they have to do with the supermassive black hole in the core of the milky way?

Mr. G...

Visit my personal web site http://www.jrobichess.com for a variety of free chess resources and training materials.

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Piece: String Quartet No. 1, 1st movement (Molto allegro e appassionato) - Op. 11

Ray Lamontagne's acoustic (and beautiful) cover of Gnarls Barkley's song 'Crazy'

I remember when

I remember, when I lost my mind

There was somethi...

http://gatherfield.com/grap...

In this video we continue our series on Fischer for the graphic novel "Bobby Fischer, the knight who killed...

Pat Metheny (Guitar), Antonio Sanchez (Drums), Richard Bona (fretless Bass), Live Jazz a Vienne 2002