If your bike has Presta valves on its rims or tubes, you'll know that pumping the tires can be a fiddly business. The Zilch floor pump is claimed to address that problem, with head seals that don't ...

Marine biologists at UC Santa Cruz have discovered that northern elephant seals can serve as 'smart sensors' for monitoring fish populations in the ocean’s twilight zone. Seals' foraging ...

However, what should you do if the readings exceed the recommended tire pressure? Each tire has a valve stem, a metal or rubber tube that sticks out from inside the rim. It holds the valve ...