When a bar fight much better to beat the enemy of the whole bottle, not broken

Break the bottle harder than human cherep



The films are often shown as the hero in a bar fight breaks a beer bottle and use it as a knife. But it is much more efficient in this case to use the whole bottle.

Bottle smash much harder than it seems - to do this, take about 40 joules, but to break the human skull, much less energy is required. Thus, you can break a bottle or even cut out the skull. Full bottle, oddly enough 30 joules to break, so the best way to use the bottle in a fight - it first to drink a beer, and then wield a bottle as a bat.

The scientists who discovered it were awarded the Ig Nobel Prize in 2009, the year - the prize is awarded annually for unusual or witty study.

If you want to make sure that is difficult to break the bottle, then watch the video. Please note that the guy in the video wearing a helmet and is not injured.



via factroom.ru