Mylar balloons are less porous to helium than are latex balloons.
There's been less inflation.
It might make you light headed or possibly pass out, but it won't kill you.
Mylar-foil balloons are less porous to helium than latex balloons. Basically, it takes helium longer to seep through the Mylar-foil.
helium is less dense than air. :) so helium will float better than air
Because it is a safe gas that is less dense than air, thus balloons float in air
They are less porous
Balloons rise when they are filled with something that is less dense than air, like helium. In other words, the gas in them is lighter than the rest of the air.
The gas in the tank is under much greater pressure than in the balloons. In other words, the He atoms in the tank are much closer together than in the balloons.
0they float because they are less dense than the air surrounding it
Helium is less dense than air, and therefore the balloon will float.
Helium is used in balloons because it is less dense than air.