This professor risked his life to teach students a law of physics

Some professors are able to do everything to explain to students the lessons that they understand more easily, even endangering their lives.

A professor of physics has risked his life to demonstrate an experiment! This experiment enabled them once and for all to learn a law in physics, writes Metro newspaper.

This is his full speech, presented in video:

I am a strong supporter of the idea of saving mechanical energy that I am able to put my life at risk. If I drop the ball from a certain height then that ball will never turn to where the height is greater. If I lift it from this height, it's gonna rock, I'm gonna get here that it's not going to be above”

This is converting the potential gravity power into kinetic energy, it'll be back to potential gravity energy and it'll stop. It will swing again and I won't be able to go any higher by making sure I don't give my body any initial speed from where I stand.

I trust 100 percent mechanical energy storage.

Maybe I can't trust myself. I'm gonna drop this body and I hope I'm able to do it zero speed so that when I get back I can probably touch my beard, or I'm not gonna press it at all. I want you to remain at peace because it's not a joke.

If I can't give him zero speed, then this will be my last lecture. I'll close your eyes because I don't want to see this, so please stay calm. No more, I haven't slept all night. Three, two, one.

Physics works and I'm still alive”, professor of physics explains.