You’ve heard about them, but do you how they work? Or why they suck? Hank explains the science behind performance enhancers, including steroids, blood doping, and that stuff supposedly made out of deer antlers. You’ll never look at cheating the same way again! ———- Continue reading
How can studying an animal help people build a proper habitat for it?
Learning goal: To understand that animals have distinct characteristics. Animals have needs that must be met in order to survive. Animals adapt to their environment.
by Jeff Finn
This resource is part of the STAO Connex inquiry and innovative practices collection.
Click here to go see the entire resource including lesson plans.
In the early days of the space race, agency researchers in Russia and at NASA really weren’t sure all what would happen to an astronaut in space. They didn’t know if a human mind could handle actually seeing Earth or what would happen to the human body when exposed to long periods of weightlessness. Continue reading
Human bodies aren’t built for extreme aging: our capacity is set at about 90 years. But what does aging really mean, and how does it counteract the body’s efforts to stay alive? Monica Menesini details the nine physiological traits that play a central role in aging.
Lesson by Monica Menesini, animation by Cinematic.
View full lesson: http://ed.ted.com/lessons/why-do-our-…
Take your students on an amusement park ride—for just a penny! Discuss how an object can be accelerating yet moving at
constant speed. Investigate how a change in direction (at constant speed) is acceleration; that is, centripetal acceleration! Continue reading
In the second video of our two-part series on HIV and AIDS, we look at the challenges that have kept scientists from developing a cure, and the treatments that have still managed to improve the outlook for those infected. We’re conducting a survey of our viewers! Continue reading
Hank discusses some of the taboos which have plagued scientific inquiry in the past and a few that still exist today. Continue reading
Consider this cold comfort: A quick study of the brutal recent cold snap in Canada and the U.S. found that the Arctic blast really wasn’t global warming but a freak of nature.
Source: Recent deep freeze can’t be blamed on climate change, study finds