While roller coasters offer up plenty of thrills, a whole lot of engineering goes into making them safe enough to not snap our necks or make us pass out. TEDEd looks at the impact that these rides can have on our bodies, and how coaster safety has improved over the years.
If you’ve ever had surgery, you know the strange sensation of counting backwards, then basically remembering until you wake up in recovery. TED-Ed explains the science behind modern anesthesia, and how they keep you from moving, feeling pain, or forming memories.
TED-Ed’s Erez Garty explains why bread is fluffy, vinegar is sour, wine is tasty, and Swiss cheese has holes in it. Yes, many of the foods that we enjoy are made that way because of tiny microorganisms and bacteria that create wonderfully yummy by-products.