makers How to make a breadboard wristwatch Mark Frauenfelder

animals That old pocketwatch you own might be lubricated with oil extracted from a dolphin's jaw Mark Frauenfelder

wristwatches Buy a rainbow Swatch, get a three-year jail term in Malaysia Mark Frauenfelder

Technology Adam Smith and the 18th-century gadgets that inspired him Rob Beschizza

Science The weight of a kilogram changed overnight; the length of a second may be next David Pescovitz