By Andrew Liszewski on at

The next time you’re staring down a tough cleaning job, get yourself a 1,000-watt laser and blast away that filth and grime in just seconds. Read More >>

By Casey Chan on at

You're witnessing the Schlieren effect, showing reactions that are normally invisible to the human eye, like changes in air density. It's pretty trippy, man. You can see the invisible. Woah. See more >>