Watch What Happens When This Guy Attaches 90 Helium Balloons To A Lawn Chair

But how does he land?

You know that scene in the movie "Up" where the old guy attaches balloons to his house and flies away? Ever wonder how many balloons it would take?

Thanks to this video by professional daredevil Erik Roner, we now know that it would take 90 balloons pumped full of 50 tanks of helium to lift the old man's house, if that house weighed as much as a lawn chair.

Watch as Roner takes a rickety lawn chair flying 8,000 feet in the air. Looks peaceful, until he has to come back down to earth. 

Then it just seems terrifying.