Showing 1-16 of 16 assets

The Chemistry of Condiments: Ketchup, Mustard and Mayo

Date : 04/06/2011

Clip Length : 00:08:02

This NBC Learn video, one in a 6-part "Cheeseburger Chemistry" series, uses ketchup, mustard and mayonnaise to explain two different types of mixtures: suspensions, and colloidal dispersions (emulsions).

The Chemistry of Condiments: Ketchup, Mustard and Mayo
Chance Discoveries: Artificial Sweeteners

Date : 04/04/2011

Clip Length : 00:05:09

This NBC Learn video, part of a series on "Chance Discoveries" in chemistry, tells the story of three artificial sweeteners -- saccharin, cyclamate and aspartame -- all discovered by lab researchers who failed to completely wash their hands.

Chance Discoveries: Artificial Sweeteners
Food + Science = Delicious Dishes

Date : 03/22/2011

Clip Length : 00:04:36

Chef Nathan Myhrvold, author of the 5-volume, $600 "Modernist Cuisine: The Art and Science of Cooking," shows NBC's Matt Lauer how to make a striped steamed omelett; how to use a homogenizer to turn pistachio oil into a cream, and why he uses a centrifuge to make pea soup.

Food + Science = Delicious Dishes
The Chemistry of Cheese

Date : 01/21/2011

Clip Length : 00:05:32

This NBC Learn video, one in a 6-part "Cheeseburger Chemistry" series, uses cheese-making to explain protein denaturing, coagulation, and the difference between chemical and physical change.

The Chemistry of Cheese
Molecule Profile:  H<sub>2</sub>O - Water

Date : 01/11/2011

Clip Length : 00:04:46

This NBC Learn video "profiles" the H2O molecule -- its structure, polarity, cohesive and adhesive properties, and water's properties as a "universal" solvent.

Molecule Profile: H2O - Water
The History of Salad Dressings: Facts and Forklore

Date : 01/01/2011

Clip Length : 3

A"History of Salad Dressings," from soy sauce to mayonnaise; prepared by The Association for Dressings and Sauces," a trade organization, using material from "Ladyfingers and Nun's Tummies: A Lighthearted Look at How Foods Got Their Names," by Martha Barnette.

The History of Salad Dressings: Facts and Forklore
Incredible, Edible Foam -- and Mysterious Math Behind It

Date : 11/30/2010

Clip Length : 2

This 2010 "Scientific American" article reports on the growing use of edible foams by innovative chefs -- and mathematicians' continuing fascination with the angles and intersections of the interlocking bubbles that make up a foam. Source: Scientific American, November 30, 2010

Incredible, Edible Foam -- and Mysterious Math Behind It
Cement Mixture Could Be to Blame for Deepwater Horizon Disaster

Date : 10/28/2010

Clip Length : 00:02:51

A presidential commission investigating the BP oil disaster showed that oil services contractor Hallibruton knew weeks before the Deepwater Horizon blast that the cement mixture it planned to use to seal the well wasn't holding.

Cement Mixture Could Be to Blame for Deepwater Horizon Disaster
Conflicting Reports on Oil Clean Up

Date : 08/17/2010

Clip Length : 00:03:12

Researchers from the University of Georgia say more than 50 percent of the crude oil from the BP oil leak -- about 3 million barrels -- is still in the Gulf of Mexico, countering government claims that 75 % of the spilled oil has evaporated, dispersed or been recovered.

Conflicting Reports on Oil Clean Up
Salad Dressing Science Mixes Up Researchers

Date : 02/04/2008

Clip Length : 1

This 2008 "Scientific American" news brief reports on an experiment mixing oil and water. Researchers found that in the process of separating, water droplets merge as they're being pulled apart, not -- as reseearchers expected -- when water droplets bump together. Source: Scientific American, February 4, 2008

Salad Dressing Science Mixes Up Researchers
Colloids in Russia: Have Plutonium, Will Travel

Date : 10/26/2006

Clip Length : 2

This 2006 "Scientific American" article reports on findings that particles of radioactive waste -- uranium, plutonium and other actinides -- can travel through groundwater by attaching themselves electrostatically to iron oxide particles and other colloids plentiful in groundwater. Source: Scientific American, October 26, 2006

Colloids in Russia: Have Plutonium, Will Travel
Examples of Mixtures Encountered in Everyday Life

Date : 01/01/2000

Clip Length : 1

Simple list of examples of mixtures encountered in everyday life -- from liquid/solid mixtures (mud, cake batter) to solid-solid mixtures (blacktop). Source: Princeton Institute for the Science and Technology of Materials (PRISM) and Princeton Center for Complex Materials

Examples of Mixtures Encountered in Everyday Life
The History of Tabasco Sauce

Date : 08/15/1988

Clip Length : 00:04:02

This 1988 TODAY show feature tells the story of Tabasco "hot" sauce -- a mixture of Tabasco peppers, salt and vinegar -- made by the McIlhenny family in Louisiana for more than a century.

The History of Tabasco Sauce
1981: FDA Oks Sweetener It Calls

Date : 07/15/1981

Clip Length : 00:01:49

In 1981, the FDA announces approval of an artificial sweetener, aspartame, it believes is "safer" than saccharin. In 1977, the FDA had recommended a ban on saccharin that was overturned by Congress later that year. In 1991, the FDA formally withdrew its proposal to ban saccharin. The warning label was removed from saccharin and products containing it in 1996.

1981: FDA Oks Sweetener It Calls "Safer" Than Saccharin: Aspartame
1969: FDA Investigates Safety of Cyclamate

Date : 10/02/1969

Clip Length : 00:02:02

In 1969, NBC News reports on the FDA's investigation into the safety of the artificial sweetener cyclamate -- consumed at the time by more than 100 million Americans, mostly in diet soft drinks. (Note: the FDA later bans cyclamate in the U.S., although it remains in use in other countries.)

1969: FDA Investigates Safety of Cyclamate
1910 Recipe for

Date : 01/01/1910

Clip Length : 2

This recipe for "Mayonnaise Dressing" appeared in a 1910 edition of "The Practical Cook Book," by Elizabeth O. Hiller. Published by Doherty Operating Co., New York (1910)

1910 Recipe for "Mayonnaise Dressing"

Showing 1-16 of 16 assets

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