How Does Glassblowing Work?

If you’ve ever tapped a screen to send a tweet, opted for the bottled soda because it tastes better, or drooled over art glass in a gallery, then your life has been changed for the better by the transparent yet durable combination of sand and simple chemicals we call glass.

The Facts About Dinosaurs & Feathers

Over the past 20 years, dinosaurs of all types and sizes have been found with some sort of fluff or even full-on plumage. These fuzzy discoveries have raised a whole batch of new questions so we’re here to tell you everything we know about dinosaurs and feathers.

Why do you need to get a flu shot every year? – TED-Ed

All year long, researchers at hospitals around the world collect samples from flu patients and send them to top virology experts with one goal: to design the vaccine for the next flu season. But why do we need a new one every year?