A REALLY big balloon filled with helium! Really, it is less denser than air, and you can make any size if you work on it. Try to make one LOL.
feather
feather
A REALLY big balloon filled with helium! Really, it is less denser than air, and you can make any size if you work on it. Try to make one LOL.
No, the IPad Air is thinner and lighter than the iPad 4
maybe a cloud
With same mass, balloon get bigger with air than water because air is much lighter than water. With same standard volume, balloon get bigger with water than air because air is compressible and it will shrink down little bit from the pressure exerted by balloon wall.
The balloon is lighter than air.
100% of hydrogen is lighter than air
Yes methane is lighter than air because it is less dense than air.
No Argon is not lighter than air. Argon is 25% more dense than air.
blimp or hot air balloons are lighter than air crafts
Hot air, hydrogen or helium are lighter than cold air.