17:29
Is Healthy Soil the Low-Tech Solution to Climate Change?
In her book “The Soil Will Save Us,” writer Kristin Ohlson concludes that the low-cost, low-tech solution to climate change may be directly underfoot—in healthy soil.
18:06
Sylvia Earle’s ‘Mission Blue’
Oceanographer Sylvia Earle bears witness to troubling changes in our oceans in the documentary “Mission Blue.”
Salad Dressing Science: Emulsion Lab
In this experiment, you will test a few common household ingredients to see which is the most effective emulsifier for making salad dressing – and you can eat your results!
Secrets of the Sauce (and Other Edible Liquids)
Culinary scientist Ali Bouzari weighs in on the four ways to change the thickness of any sauce, soup, or liquid.
An Ephemeral River, Viewed From Space
This ephemeral river may only last a few days a year, but it’s life sustaining.
Balloon Rockets
In this lesson from the Chemical Educational Foundation, apply the concepts of pressure and Newton’s laws of motion to build balloon rockets.
6:09
Oarfish: The Ultimate Fish Tale
Little is known about the monstrously long oarfish, its life cycle, and how it navigates its deep sea environment.
22:14
As California Dries Up, Locals Hope for El Niño
A third of California is now clenched by exceptional drought, and this week the state announced $500 fines for water-wasters. But many residents continue to hope for rain.
Fashion Circuit
Add some pizzazz to your favorite clothing and accessories using some wire, tape, a battery, and an LED.
Sea, Temperature, CO2 Levels All Rise in 2013
NOAA releases its State of the Climate Report for 2013.