How a single-celled organism almost wiped out life on Earth [Science Video]

There’s an organism that changed the world. It caused the first mass extinction in Earth’s history … and also paved the way for complex life. How? Anusuya Willis explains how cyanobacteria, simple organisms that don’t even have nuclei or any other organelles, wrote a pivotal chapter in the story of life on Earth. [TED Ed]

How Air Conditioning Works [Science Video]

Here’s to a marvelous technology! ok…maybe the heat’s getting to us ;) This video actually explains very simply how your A/C works, why we use a certain gas over another, and how it’s cooling magic actually works! Oh, and wink wink science teachers: interesting explanation of change in physical states… Thank you, Chemistry, for making […]