ViralVideoLab | How To Make A Floating Vacuum Balloon! @ViralVideoLab | Uploaded 9 months ago | Updated 22 hours ago
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This video shows you an extraordinary physics experiment. With the help of a children's gripping ball and a vacuum sealing device from the kitchen, it is possible to make a floating vacuum balloon. The structure of the gripping ball keeps the shape of the balloon stable. The vacuum sealer creates a vacuum inside the balloon, which reduces the effective density of the balloon. The buoyancy force is therefore greater than the weight of the balloon, which causes the balloon to float. Make sure to use a lightweight gripping ball and also a lightweight vacuum bag when you try to recreate the experiment.
background information:
An airship operates on the principle of buoyancy, according to Archimedes' principle. In an airship, air is the fluid in contrast to a traditional ship where water is the fluid.
The density of air at standard temperature and pressure is 1.28 g/L, so 1 liter of displaced air has sufficient buoyant force to lift 1.28 g. Airships use a bag to displace a large volume of air; the bag is usually filled with a lightweight gas such as helium or hydrogen. The total lift generated by an airship is equal to the weight of the air it displaces, minus the weight of the materials used in its construction, including the gas used to fill the bag.
Vacuum airships would replace the lifting gas with a near-vacuum environment. Having no mass, the density of this body would be near to 0.00 g/L, which would theoretically be able to provide the full lift potential of displaced air, so every liter of vacuum could lift 1.28 g. Using the molar volume, the mass of 1 liter of helium (at 1 atmospheres of pressure) is found to be 0.178 g. If helium is used instead of vacuum, the lifting power of every liter is reduced by 0.178 g, so the effective lift is reduced by 14%. A 1-liter volume of hydrogen has a mass of 0.090 g.
00:00 Levitating vacuum balloon
00:03 using a scale to measure the weight of the vacuum ballon structure
00:06 building the vacuum balloon
00:50 vacuum ballon is levitating
Subscribe: youtube.com/subscription_center?add_user=ViralVideoLab
Subscribe: youtube.com/subscription_center?add_user=ViralVideoLab
This video shows you an extraordinary physics experiment. With the help of a children's gripping ball and a vacuum sealing device from the kitchen, it is possible to make a floating vacuum balloon. The structure of the gripping ball keeps the shape of the balloon stable. The vacuum sealer creates a vacuum inside the balloon, which reduces the effective density of the balloon. The buoyancy force is therefore greater than the weight of the balloon, which causes the balloon to float. Make sure to use a lightweight gripping ball and also a lightweight vacuum bag when you try to recreate the experiment.
background information:
An airship operates on the principle of buoyancy, according to Archimedes' principle. In an airship, air is the fluid in contrast to a traditional ship where water is the fluid.
The density of air at standard temperature and pressure is 1.28 g/L, so 1 liter of displaced air has sufficient buoyant force to lift 1.28 g. Airships use a bag to displace a large volume of air; the bag is usually filled with a lightweight gas such as helium or hydrogen. The total lift generated by an airship is equal to the weight of the air it displaces, minus the weight of the materials used in its construction, including the gas used to fill the bag.
Vacuum airships would replace the lifting gas with a near-vacuum environment. Having no mass, the density of this body would be near to 0.00 g/L, which would theoretically be able to provide the full lift potential of displaced air, so every liter of vacuum could lift 1.28 g. Using the molar volume, the mass of 1 liter of helium (at 1 atmospheres of pressure) is found to be 0.178 g. If helium is used instead of vacuum, the lifting power of every liter is reduced by 0.178 g, so the effective lift is reduced by 14%. A 1-liter volume of hydrogen has a mass of 0.090 g.
00:00 Levitating vacuum balloon
00:03 using a scale to measure the weight of the vacuum ballon structure
00:06 building the vacuum balloon
00:50 vacuum ballon is levitating
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