资讯

Tugging a small toy with your dog can be a lot of fun—but it’s also a great way to experiment with forces acting on an object. Forces are what scientists call the pushing and pulling on objects. In ...
The strong force binds quarks inside neutrons and protons, and holds atomic nuclei together.
Tyrannosaurus rex and megalodon are repeat science fiction stars for a reason: Their bites were ferocious. But which extinct and living creatures actually exert the strongest bite force? Bite ...