The NFL, in collaboration with the NFLPA, through their respective appointed biomechanical experts, coordinated extensive laboratory research to evaluate which helmets best reduce head impact ...

You only have one brain and so it’s important to buy the best motorbike helmet you can afford. That doesn’t always mean spending £1000+ on a race-ready carbon lid, though, and there are ...

Derivatives allow trading of assets without owning them, useful for hedging or speculation. Leverage in derivatives can control large assets with less cash, but increases risk. Derivatives provide ...

Unlike a single-piece full-face helmet, a flip-front has a separate chin-bar that lifts up, exposing the face while the helmet is still on. Not only does this allow people to see your face for ID ...

Many other frog species camouflage themselves in the wild, but the poison dart frog uses its brightly colored skin to warn predators that it is unfit to eat. The frog's skin secretes a dangerous ...