If you're going to challenge someone to a water gun fight this summer, it's best you don't take up arms against Mark Rober, a former NASA engineer who has created the world's largest Super Soaker.
Rober's 7-foot-long (2.1 meters) Super Soaker can blast out water at 272 mph (437 km/h), according to his YouTube video, posted July 11. (To date, the video has already amassed 1.2 million views.)
Image: Mark Rober with the colossal Super Soaker Credit: Mark Rober/YouTube