Carl Sagan explains how the ancient Greeks knew the Earth was round and calculated its circumference over 2,000 years ago.
This Lego-powered RC sub is amazing
In a region where food is already scarce, billions of insects are now eating everything in sight
Electrostatic charged fabric, why didn’t I think of that!
The spongiest cake you ever did see with ASMR-like audio to accompany the deliciousness
The CDC shows you how to create your own basic, no sew face mask in a few easy steps
Dr. Jeffrey VanWingen, a US family physician, demonstrates how to grocery shop and handle take-out food safely
It’s not scientifically accurate, but it’s a powerful visual for your little ones
A scientific explanation and compelling visual demonstration on how/why soap is so effective
With Coronavirus at the forefront of global attention, this is a good time for a primer on exponential and logistic growth