The Jump Snap is a jump rope without the rope. So basically it's the most useless invention ever. It's supposed to let people jump rope even if they don't have the coordination or fitness level required to do so, but that completely eliminates the point of jump rope. Anybody can stand around and jump, it's the rope that trains coordination. They might as well be trying to market two sticks and an instruction manual. Which, sadly, most lazy people would probably buy.
Instructables has a nice tutorial on how to create motorized skates using a pair of inline skates, an angle grinder, and a bag of 12 volt batteries. And just how safe are these? Well instead of brakes, this is how you stop:
In this version, I just put trust in my sense of bala... / Continue →
For $25 you can get these Possessed Books, which look like regular Victorian books but contain a motion detector so whenever somebody walks by the middle book will slide out. The books also emit "spooky sounds" which I imagine to be more comical than scary. If you really want t... / Continue →
Who knew there was such a big market for levitating globes? This one isn't nearly as cool though since it needs a top and bottom magnet.
A magnetic field sensor continually measures the height at which the globes are suspended. This sensor feeds that data into a micro computer... / Continue →