If there was a Nobel Prize for Awesomeness, Jörg Sprave would win it easily. And why isn't there such a Nobel Prize? The mere existence of this weapon alone justifies its creation.
Sprave, noted for his pioneering research into Gatling gun slingshot technology, now worked on the circular sawblade challenge. How did he ensure that the sawblade spins properly while in flight? Watch and find out.
Link via Gizmodo