DougBTX's channel

Playing mathematically with fruits by the foot.

Mobius Story, Wind and Mr. Ug: http://www.youtube.com/watc...

Mobius Candy buttons: htt...

Slower 60-degree angle, polygon-a-tron, and tetrahedron-a-tron: http://youtu.be/uniqFnmcllE

This is a follow-up from Being a Plant part 2: http://y...

SpongeBob background designer's response: "OK, I guess the jig is up... I'm tired of living a lie." See his full message and pineapple redesign: ht...

The cool stuff in my office, before we move! Special thanks to my partner in crime, Minli.

youtube.com/khanacademy

http://www.khanacademy.org

Make sure to watch/listen on 720p HD! Cuz Dubstep with Rainbows is 20% Cooler!!! XD

First PMV Let me know whatcha think.

** Thanks for all the c...

*** See the making of the video here:http://www.youtube.com/wa­tch?v=NhlpyP-2ooE***

JAPAN INSTITUTE OF SCIENCE AND TECHNOLOGY

Here is a short foot...

Another video for cat entertainment. A couple of squirrels munching on bird seed. Cats love to watch this clip for hours.

Vi Hart joining Khan Academy announcement

Triangles!

Get it here! http://amzn.to/TronSoundtrack

Soundtrack composed by Daft Punk

(c) 2010 Walt Disney Records

About TRON:

The Game Has Changed.

...

George Formby singing In my little snapshot album with his banjo-uke.

Enjoy!

This hypnotic slate pendulum is a great way to relax... perfect for office or home. http://bit.ly/9ZBg4h

Work It - Ylvis

Accuracy not guaranteed. Get Audacity and play! http://audacity.sourceforge...

Correction: it is the "Basilar" membrane, which is what I say, bu...

brusspup t-shirts! http://brusspup.spreadshirt...

An amazing science trick with smoke and a flame. Try it at home. You'll be blown away!

I know the concept in this video is fake but I'm pretty sure you can get a lot of mods that will do this kind of thing anyway. I'm sorry if the tit...

How to draw squiggles like a Hilbert.

This took quite some time so feed back would be nice :D

Song is What a Wonderful World by Louis Armstrong

Nosirrah, Ironfruit & Bethness explain one of the fundamental aspects of Minecraft; Mining. We go through what levels you can find certain blocks, ...

A quick response to some mathy things going around.

This is a slight tweak to some of my old code for Conway's Game of Life. Instead of having a fixed pattern, entropy is inserted at the edges so tha...

How to make snazzy-lookin' fractal equations using simple algebra.

For more abacabadabacaba: http://www.abacaba.org/

and http://books.google.com/b...

A cautionary tale.

Other Möbius videos:

Candy Buttons http://www.youtube.com/watc...

Möbius Music Box http://www.youtube.com/watc......

Amusing myself with snow.

Wikipedia page on linkages: http://en.wikipedia.org/wik...)

For more in-depth information about the ma...

I gave this talk at the 2011 Joint Mathematics Meetings in New Orleans. It was meant for an audience of mathematicians, but the big words aren't as...

Christmas ain't over yet. The 12th day is Jan. 6th!

You can get just the song here: http://vihart.com/music/gau...

http://vihart.com

More videos/info: http://vihart.com/doodling

Check out this cool star-making applet Ruurtjan sent me: http://stars.ruurtjan.com

Doodling Infinity...

It's with much pride and gratitude that I present our 500th YouTube video upload! I want to thank you all for the amazing support and love you've s...

Allison singing "Tik Tok" by Ke$ha. I'm playing piano, supposed to be fun kinda ironic... Enjoy it guys!