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Lecture Series on Mathematics - III by Dr.P.N.Agrawal, Department of Mathematics, IIT Roorkee. For more details on NPTEL visit http://nptel.iitm.ac.in

Julia Galef from http://measureofdoubt.com talks about why rationalists are more likely to abandon social norms like marriage, monogamy, standard g...

Segment from Christopher Hitchens at the Prestonwood Baptist Church in Plano, TX, Nov. 18th 2010.

The last 30 secs are absolutely beautiful. He mig...

The line "like tears in rain" was never scripted, Rutger Hauer just made it up.

Moderator: Jesse Galef

Panel:

James Croft

Greta Christina

Julia Galef

Eliezer Yudkowsky

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During filming, if a powerpoint slide...

Please comment, rate, subscribe and request any tom lehrer song

Released on RHAPSODY 71959, probably on July 19, 1959

Make Glacial Acetic Acid using Sodium bisulfate, also known as sodium hydrogen sulfate (NaHSO4). This is much safer and cheaper than using Sulfuri...

How to make sulfuric acid by electrolysis of copper sulfate using an inert anode. Copper sulfate is very easy to obtain in large quantities at gard...

How to make phosphorescent glow in the dark powder. Also known as luminescent, photoluminescent or simply glow powder.

Warning: This experiment u...

We show how to purify aluminum nitrate and strontium nitrate by recrystallization. This is important because those two substances must be extremely...

In this video we briefly discuss ways of measuring pH using pH paper and a meter.

We go further in this part to compensate for the non-idealities ...

In this video we grow crystals of pure silver metal by electochemistry.

The procedure is fairly simple. Just apply an electric current between a s...

In this video we make a desiccator bag for thoroughly drying hygroscopic chemicals. Some chemicals are hygroscopic, meaning they absorb water from ...

In this video we make europium and dysprosium nitrate salts we'll need in upcoming videos.

Instead of buying the salts directly from our chemical ...

In this video we make ammonium nitrate from various off-the-shelf chemicals.

Note: This is not cheaper than buying it directly, once again our obj...

In this video we show you how to levitate pencil lead.

In a previous video we showed that pyrolytic graphite was diamagnetic, it was repelled by m...

How to make thin-layer chromatography plates (TLC plates) for a few cents each that are as good as commercial TLC plates that sell for a dollar or ...

Using iron(III) nitrate to determine salicylate concentration in standardized salicylate solutions and urine.

You can actually use any iron(III) s...

Using an accurate balance to determine the actual volume per drop delivered by a disposable plastic (beral) pipette.

Testing for the element boron using curcumin, a yellow dye we extract from the spice turmeric. With curcumin, boron forms an intense red complex ca...

Illustrates how to synthesize copper(II) carbonate, an ore of copper, from copper(II) sulfate root killer and sodium bicarbonate (baking soda). We'...

Some ideas about the best and least expensive places to obtain laboratory chemicals, including local sources and on-line vendors from whom I've ord...

Synthesizing expensive ammonium metavanadate from cheap pottery chemicals. We'll use the AMV we make in later videos to make up Mandelin reagent fo...

Dr. Paul Jones synthesizes nitrocellulose from cotton balls and a mixture of concentrated sulfuric and nitric acids.

In the video, we talk about n...

In this segment of the continuing "chemicals on the cheap" series, we purify technical grade hydrochloric acid--available cheaply by the gallon in ...

I do not own any rights to this audio, for entertainment purposes only, If the owner wishes this removed, you needn't more than ask. cheers

Quite on the contrary, 35% Food-grade Hydrogen Peroxide (H2O2) is safe to handle. Read more on H2O2 at http://merahza.wordpress.co......

This little kitten has a sad . If you take few seconds of your time to hit the LIKE button kitten no more haz sad .

A girl, a dog and a dagger.

*I am a licensed wildlife rehabilitator* This mother raccoon and her five kits were evicted from a homeowner's attic. The mother was trapped first,...

SNOW PLOWING ROBOT

Tchaikovsky's 5th Symphony. Falcón Symphony Orchestra, Manuel Lopez Gomez (Conductor) 10 de Mayo del 2007 Venezuela.

For a better video of this process, see http://youtu.be/hYU3YXyAceI

Video showing how to cut a piece of soda-lime glass tubing (actually a test-tu...