A skin lesion KOH exam is a simple skin test to check if an infection in the skin is caused by fungus. KOH stands for potassium (K), oxygen (O), and hydrogen (H). These elements make up potassium ...

University of Toronto engineers have unveiled a “rock candy” style method of capturing carbon dioxide directly from the air ...

In 1807AD, potassium was first prepared by English chemist Sir Humphrey Davy. Davy melted a small amount of potash, and an passed electric current through it. He discovered that a small liquid droplet ...

Solid, liquid, gas … and something else? While most of us learn about just three states of matter in elementary school, physicists have discovered several exotic varieties that can exist under extreme ...