Stuff That Sticks
22min -
We often think that sticky is icky, but nature uses stickiness in many ways. And humans use
stickiness for many useful purposes: to keep from getting sick, make our daily lives easier and even for flying at supersonic speed! A key point we need to make in the episode is that there are different types of “sticky”. For example, there are positive and negative charges between molecules, there are physical hooks on things such as VELCRO brand fasteners, burs and chrysalises as well as other types of
bonds, like molecular bonds. There are natural glues made by animals.
7.9
