Optical atomic clocks can increase the precision of time and geographic position a thousandfold in our mobile phones, ...

Getting whiter teeth doesn't have to mean spending a fortune at the dentist. You can get professional-looking results with at-home whitening kits that won't break the bank. From easy-to-use strips ...

Brightening options that rely on physical buffers to reduce the appearance of stains may be too abrasive for sensitive teeth. However, popular formulations from top brands like Boka and Davids use ...

Optical atomic clocks can increase the precision of time and geographic position a thousandfold in our mobile phones, computers, and GPS systems ...

The capture of Goma by M23 rebels attracted much noise from western countries and especially the European Parliament. The UN Security Council also held sessions after the fall of Goma, where the UN ...

Every electric toothbrush will clean your teeth, but some come with extra features and accessories that can bump up the price. Find out about the best electric toothbrush features and whether they're ...

Had a mechanical engineer designed the human frame, he would no doubt have built the jaws after the fashion of a nut cracker, with the muscles placed at the ends of the jaw levers, and the teeth ...