Hydrogen Balloon

A hydrogen balloon is a type of lighter-than-air craft that uses hydrogen gas to create lift. Hydrogen is a very flammable, colorless, and odorless gas that is less dense than air, allowing the balloon to rise. Historically, hydrogen was used in early balloons and airships because of its high lifting capacity. However, due to its flammability and risk of fire, safer alternatives like helium are now more common. Hydrogen balloons demonstrate principles of buoyancy, where the weight of the displaced air is greater than the weight of the balloon and its contents, enabling it to ascend into the sky.