The Riptide from Howe and Howe Technologies is essentially 9000-pound tracked monster with a top speed of over 60mph on land, making it one of the fastest tank-like vehicles in the world, and it can turn on a dime to boot. Unlike its big brother Ripsaw, this version is amphibious, capable of reaching speeds of 15-25 knots in the water. How is the Riptide able to accomplish such feats? Its mechanical clutching system that allows for a much quicker and simpler handling of the hydrostatic transmission. 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 of a hypnotizing color-changing cake.