› added 8 years ago

166

TIL of SawStop, a device that will stop a table saw in 1/1000th of a second if it detects a hand

Read more youtube.com

via ift.tt

5LbD TIL the Krakatoa eruption, the loudest recorded sound in history, was heard from 3,000miles away. That’s like being in Boston and hearing a sound from Dublin, Ireland.
QJBM TIL that Karen Carpenter died on the same day that her divorce was supposed to be finalized. At her funeral her husband took off his wedding ring and threw it into her casket.
jNkRX TIL that since it can't match the Earth's rotational speed, a westward plane technically travels east — just like the entire planet beneath it. It just has engines that help it travel east a little more slowly than everything else, making it move west relative to the ground.
KOa4B TIL British nuclear weapons were armed with only a bike lock key until the mid 90's.
grv18 TIL the first balloons were made out of animal bladders and “balloon animals” were made out of animal intestines