Up Next
Back to Show
Reactions
That Fresh Cut Grass Scent is Really a Signal of Distress
Season 5
Episode 65
Spring is in the air! It’s time to mow the lawn and breathe in the smell of freshly cut grass. But this pleasant springtime scent may actually be a chemical cry for help. We explain how plants communicate, their chemical response to being damaged, and how bugs play a part.
Support Provided By
21:33
The 15 ways that color happens. It's all about the electrons. Well, almost.
12:07
This element powers glow in the dark exit signs, keychains, and costs $30,000 per gram.
9:53
Scientific fraud rocked the Alzheimer’s research community. Did it help point to a cure?
12:54
Alex Dainis explores whether or not your milk needs to be pasteurized. Yes, it really does.
14:04
George tests a revolutionary new way to stick stuff together.
12:02
Sometimes the difference between life-saving drug and deadly side effect is chirality.
17:23
What happens when you eat morel mushrooms.
10:31
WARNING: this video contains incredible macro footage of supercooled water droplets nucleating ice.
13:12
Let’s dive into the science behind ocean alkalinization!
16:56
Discover why curdled milk is the key to the best cocktail you’ll ever taste.
10:13
Scientists are finding the building blocks of carbon ring structures… out in space!
12:00
George becomes a pyromaniac to figure out if ammonia is the fuel of the future.