How Long Is One Second, Really? Do we really know how long a second is? The science behind how time is actually measured may prove you wrong. Facebook Prev Article Next Article Discover Checkout these cool gadgets... Related Posts NASA Predicts a Mega Drought for America in 2075 Time Square Billboards China Has a Rover on the Moon & Here’s What It Found Cloning agent Smith – Behind the scenes “The Matrix” What it looks like in the Arctic Circle When the Sun Never Sets Your Next Computer Chip Could Be Made of Gallium Oxide