Helium has a low density and causes balloons and blimps to float
Yes, helium has been used in blimps as a lifting gas. Helium is less dense than air, which allows it to provide buoyancy and help the blimps stay afloat. However, today, most blimps use a combination of helium for lift and air for control and propulsion.
Blimps use lighter than air gasses namely hydrogen or helium.
The replacement of hydrogen in blimps with helium is not based on the gas laws but rather on the fact that hydrogen is highly flammable whereas helium is entirely non flammable. In fact based on the gas laws hydrogen would actually be better for blimps because its has lower molecular mass and is therefore less dense than helium.
They are filled with helium gas. They used to be filled with hydrogen gas but that proved to be deadly at times.
To my knowledge helium is the only practical lift element for blimps. Hydrogen actually works better than helium, and it is cheaper, but it is highly combustible and not used anymore.
Yes, helium is still commonly used in blimps due to its low density and non-flammable properties, making it a safe option for lifting aircraft. Helium provides the necessary buoyancy to keep blimps afloat and is widely used in the aerospace industry for this purpose.
Most early blimps were filled with Hydrogen, which is exretemly flammable and prone to ignite due to atmospheric changes. (Remember the Hindenburg??) Helium is a "noble gas" and therefore less susceptible to atmospheric changes.
In helium balloons and blimps. Helium is lighter than air. So balloons or blimps filled with helium will float or rise up
The flammable gas once used to fill blimps is hydrogen. Despite its higher flammability compared to other gases, hydrogen was used due to its lightness and abundance. However, hydrogen's flammability posed a risk of explosions, leading to the decline in its use for blimps.
Helium is a very light unreactive gas so it can be used in balloons etc.
Blimps float because they are filled with a gas that is less dense than the surrounding air, typically helium or hydrogen. This creates lift, allowing the blimp to stay airborne. By adjusting the amount of gas in the blimp, pilots can control its altitude.
Today's blimps are not filled with flammable hydrogen gas like Hindenburg was, but normally the non-flammable helium.