Propane Rifle

What do you get when a propane torch, two-by-four, clear tubing, and a water bottle are combined? A crazy propane rifle of course, or at least if you’re “The Backyard Scientist”. “This experiment was not explody enough for me, so I used the same concept to build a propane powered cannon. This is honestly the best gas cannon I’ve ever used, it is just so simple. You could probably shoot 20 golfballs a minute the length of a football field or farther. The canon shot golf balls over 600 feet in the air,” said its creator. Click here to view the first image in today’s viral picture gallery. Continue reading for the five most popular viral videos today, including one showing what happens when you fill a house with explosive expanding foam.

5. Filling a House with Explosive Expanding Foam

4. Robot Sumo Wrestling

3. First Look at the Titanosaur

2. Unexpected Classical Music Mashup

1. The Techno Union