Science! Axing technology is as old as time, but thanks to physics and people with good ideas, it has just been vastly improved upon. Finnish inventor Heikki Kärnä “created an ax that works more as a splitter, lever and wedge all at once,” The Blaze writes. Though it looks a little funny, it splits wood in record time. Geek explains: It’s essentially acting as a lever instead of a wedge (Vipukirves translates as Leveraxe). A regular axe needs to be driven downward with enough force to separate wood along the grain. That’s a lot of force, and if a log...