What are quantum dots, and why are we making them out of tea?

What are quantum dots, and why are we making them out of tea?

They’re tiny, they reflect and absorb light in useful ways, and they’re increasingly found in our homes: quantum dots. These fancy-sounding nanoparticles, which are called “quantum” because of their tiny size, have a number of commercial applications, from sensors and solar cells to TVs and cell phone chargers. They’re also used in medicine, where—among other things—they help doctors see cancer inside bodies and deliver drugs where they’re needed, hopefully without harming surrounding cells.

Read more at PopSci.com.

Sleeping in on the weekend might be good for you, but it's not going to fix all your problems

Sleeping in on the weekend might be good for you, but it's not going to fix all your problems

The EPA is keeping a troubling new study on drinking water under wraps. Here’s what you need to know.

The EPA is keeping a troubling new study on drinking water under wraps. Here’s what you need to know.