PDGO is a small portable 1080p LCD ... measures 14 x 8 x 1.3 cm in size and weighs just 220 g roughly the same as an iPhone. Equipped with a 10,000 mAh battery the LCD display can be used as ...

The clock described in the new NIST research paper is about the size of a coffee mug right now -- about 150 cubic centimeters. That sounds small without comparison, but it's still 10 times larger ...