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An overview of the Department of Chemical and Biological Engineering at Northwestern University's McCormick School of Engineering featuring intervi...

One of the oldest departments of Newark College of Engineering, the Otto H. York Department of Chemical, Biological and Pharmaceutical Engineering ...

When we touch something that is hot or cold, what are we actually sensing? Is it the temperature of the object, or the rate at which heat flows bet...

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...

Earth from Space is presented by Kelsea Brennan-Wessels from the ESA Web-TV virtual studios.

In this special edition, Envisat Mission Manager, Henr...

Please excuse the simple math and spelling errors. You shouldn't believe anything I say without double-checking even at the best of times.

Go here...

Astronomer Dr Meghan Gray on leap years and Julian dates.

Meghan is making a "guest appearance" on Numberphile and is more familiar to viewers of...

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

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

Dr Aziz Aboobaker on his latest breakthrough studying planarians - or immortal worms. Read the paper at http://www.pnas.org/cgi/doi......

What is matter, anyway? What does it have to do with math? And why aren't you made of Jesus? Delving deeper into the theory of (almost) everything ...

Matt talks us through "Happification" and resulting structures it creates. Includes his fascinating Melancoil!?

Our earlier Happy Numbers video is...

http://www.youtube.com.br/u...

Music: Kitaro - Matsuri

Images: NatGeo / BBC

Compilation and editing: Perruci

Imagens: natgeo/bbc

Co...

Pete shows us how to convert some white phosphorus into phosphorus pentoxide, using just a little bit of sand and a hot copper rod. More on this at...

Dr Meghan Gray on the globular cluster M30 - Messier 30 - and its "core collapse".

IMAGE CREDITS

With thanks to Fred Espenak: http://astropixels.c...

I wanted to get this up sooner but I'm in the middle of moving.. can you guess to where? LINKS BELOW:

music at end by: http://soundcloud.com/jake...

Space touches us all on Earth - it is used for protecting our environment, for improving our everyday lives, for safety and security, and for stimu...

Earth from Space is presented by Kelsea Brennan-Wessels from the ESA Web-TV virtual studios.

In the twelfth edition we look at the icy waters of th...

Writing a Fraction as a Decimal, Example 1

Do we take the Earth for granted? It gives us life and sustains us in the manner we're accustomed to, but we don't know the first thing about it: l...

What is radiation? Are all types harmful? What are the most common sources of damaging radiation? Most people view radiation as harmful and negativ...

A quick message ahead of our tour of the Large Hadron Collider at CERN. Please leave any questions or messages below.

Visit our website at http://...

For a sneak peek of the latest Michio Kaku clip visit http://bigthink.com/ideas/4...

What would our chemists have like to have done - if they weren't chemists of course!

Featuring the periodicvideos team at the University of Nottin...

Magic squares are pretty interesting for Numberphiles any day of the week - but Roger shows us one with extra special "powers".

Professor Roger Bo...

*** LINKS ***

Exploding Bubbles

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

Floating Washing Machine

http://www.treehugger.com/c......

Dividing Decimals, Ex 3

Dividing Decimals, Ex 1

Artist and writer Matt Collings takes the plunge into an alien world of equations. He asks top scientists to help him understand five of the most f...

A simple video on how to wear pants. There may or may not be a song involved. And it may or may not be a parody of this song and video here:

http...

Here's a narrated "lap' of the Diamond Light Source synchrotron, with descriptions of what happens along its various beam lines. The idea is to giv...

We ask a few questions of scientist Claire Pizzey, who works at the Diamond Light Source, a huge synchrotron in Oxfordshire.

See more about Diaomo...

A brief intro to the current theory of (almost) everything - the Standard Model of particle physics. It's like cake, only universal.

minutephysics...

Professor Moriarty enthuses over a recently published paper. Our thanks to the authors, especially Sebastian Loth, for permission to reproduce thei...

Secret Skrillex Show: http://bit.ly/ySRFRu

MIA Bad Girls Music Video: http://bit.ly/yJA94B

MIA comment response: http://bit.ly/ADLydA

"Fat people s...

Tetris has changed the life of James Clewett, the 1999 world champion. He is now on the brink of finishing a PhD in physics. Here he describes his ...

Earth from Space is presented by Kelsea Brennan-Wessels from the ESA Web-TV virtual studios.

In the eleventh edition we explore a region widely co...

We're talking pretty big numbers here... And an interesting idea about what it'd be like traveling in a Googolplex-sized Universe!

With Antonio (T...

The Gran Telescopio Canarias, or GTC, or GRANTECAN, is the biggest telescope at the observatory on La Palma. Video journalist Brady Haran has a loo...

Another video from our Brazil trip... The Caipirinha is Brazil's national cocktail and it is sugary to its core.

More chemistry at http://www.peri...

Numberphile video about number 11, marking the last binary day of a generation: 11.11.11.

Exploring barcodes, check digits and CD technology.

Fil...

For many years, 8128 was the largest known perfect number. But what is a perfect number?

This video features Dr James Grime. James' own YouTube ch...

Pokemon Heart Gold and Soul Silver Preview HD

For more information about Heart Gold and Soul Silver go to

http://www.serebii.net/inde...

http:...

How much do you need to vomit in order to levitate?

Rocket Science Tutorial! (Minutephysics): http://www.youtube.com/watc...

"Milkman...

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

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

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

We're pointing the telescopes towards the open cluster, M34. And okay, Nik doesn't really like imaging open clusters!

In this video: Roy Gretton, ...