Showing results for: Videos

Meter is the standard unit of length used by most countries around the world. But how did they define it? (4:44 min.)

Learn More

Acids are widely considered to be the scariest chemical compounds of all, but bases can be just as powerful. Most powerful of all are a special class of bases called superbases! (4:28 min.)

Learn More

What do gray wolves, elephants, and parrotfish have in common? They're all keystone species, which means they have an especially large impact on their habitat. (5:07 min.)

Learn More

This presentation reviews the processes and summarizes the results from the Fall 2016 Fish Market Survey Action Project.

Learn More

How can we learn about the galaxies beyond our own? It all begins with light - the kind we see and the kind we can’t. (4:45 min.)

Learn More
res-video 
with Starting Points

There's a saying that "it's not the volts that kills you, it's the amps" and while that's true in a way, you can't have amps without volts and skin resistance plays a big part too. (5:15 min.)

Learn More

Most people know that dogs and wolves have a lot of the same genes.But did you know that Pekingese dogs are the most genetically similar to wolves of all dog breeds? Learn how artificial selection processes created the dog breeds we see today. (3:41 min.)

Learn More

The stethoscope is the single most widely used medical instrument in the world. But where did the idea come from? (1:48 min.)

Learn More

Go to any paint store or nail-polish shelf and you’ll see a dozen or so variations of the color black. Even inside a crayon box, there are a lot of shades. But what is the blackest black out there? (3:22 min.)

Learn More

When we look at the sky, we have a flat, two-dimensional view. So how do astronomers figure the distances of stars and galaxies from Earth? (5:29 min.)

Learn More