When you think of night-vision goggles, you probably imagine the pitch black of night being illuminated in a sea of green that helps improve visibility. That’s ancient technology now as the US Army’s Lancer Brigade of Joint Base Lewis–McChord demonstrates what soldiers see through the military’s latest and greatest night vision goggles. The Predator would be jealous.
If you’ve worried that your toothbrush, being usually in the same room as your toilet, is perpetually covered in microscopic fecal matter, well, here’s some relief. According to a new study, our brushes are full of bacteria found in our mouths, but they’re not full of bacteria from our guts. In other words, our toothbrushes don’t seem to be nearly as disgusting as many of us feared.