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Air pressure changes when the hot water generates warmer air, thus like the weather, wind (or in this case a small draft upwards) is generated. Air pressure and current causes the shower curtain to move as cooler air is sucked under and around the curtain.

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What happens to a shower curtain when a shower is turned on?

Many people have tried to figure out exactly how and why this happens but no one has ever proven their theories conclusively. There are 4 leading theories. The first is the Buoyancy theory. Which says that as the hot air rises, and replaces the cold air, it creates a Coandă effect which is similar to a small vortex of air which sucks the curtain inwards. The second is the Bernoulli effect. This states that the air matches the velocity of the water coming out of the shower-head and lowers the air pressure inside the shower and against the inside of the shower curtain. This results in the shower curtain being pulled inward. The third is a combination of the first two. It's called the Horizontal vortex theory. A computer model showed that the water coming out of the shower-head can create a horizontal vortex (sideways tornado) which causes a pressure drop and pulls in the shower curtain. The fourth and final is simple condensation. A hot shower produces steam that will condenses on the shower side of the curtain and lowering the pressure there. The condensation will be continually replaced causing a temperature fluctuation which results in times where net steam production is negative. So there you have it. Who would have thought such a simple thing still remains partially unproven.


How can a flashlight can be luminous and nonluminous?

A flashlight can be luminous when turned on, emitting light from the bulb. It can be nonluminous when turned off because at that point it is not emitting any light.


Can water flow through a pump that is turned off?

No, water cannot flow through a pump that is turned off because the pump is not actively moving the water.


Do neon lights get hot when they are turned on?

Neon lights do not get hot when they are turned on because they operate at a low temperature. The heat generated by the electricity is dissipated by the glass tubing, so the surface of the neon light remains cool to the touch.


Why doesn't an electric lampshade work where turned on?

An electric lampshade does not work when turned on because there may be issues with the wiring, the light bulb may be burnt out, or there could be a problem with the power source. It's important to check these components to diagnose and fix the issue.

Related Questions

What happens to a shower curtain when a shower is turned on?

Many people have tried to figure out exactly how and why this happens but no one has ever proven their theories conclusively. There are 4 leading theories. The first is the Buoyancy theory. Which says that as the hot air rises, and replaces the cold air, it creates a Coandă effect which is similar to a small vortex of air which sucks the curtain inwards. The second is the Bernoulli effect. This states that the air matches the velocity of the water coming out of the shower-head and lowers the air pressure inside the shower and against the inside of the shower curtain. This results in the shower curtain being pulled inward. The third is a combination of the first two. It's called the Horizontal vortex theory. A computer model showed that the water coming out of the shower-head can create a horizontal vortex (sideways tornado) which causes a pressure drop and pulls in the shower curtain. The fourth and final is simple condensation. A hot shower produces steam that will condenses on the shower side of the curtain and lowering the pressure there. The condensation will be continually replaced causing a temperature fluctuation which results in times where net steam production is negative. So there you have it. Who would have thought such a simple thing still remains partially unproven.


Why is the shower turned off but the water is still running?

The shower is turned off but the water is still running because there may be a leak in the faucet or showerhead, causing water to continue flowing even when the shower is not in use.


Why does the shower head drip?

The shower head drips because of a faulty seal or worn-out washer that fails to completely stop the flow of water when the shower is turned off.


Why is there water dripping from the shower head?

Water is dripping from the shower head because there may be a leak in the shower head or the faucet handle is not fully turned off, causing water to continue flowing.


Why does the shower drip when turned off?

The shower drips when turned off because the rubber washer or O-ring inside the faucet valve may be worn out or damaged, causing water to leak through even when the handle is in the off position.


Why does the tub faucet leak when the shower is turned on?

The tub faucet leaks when the shower is turned on because the diverter valve, which directs water flow to the showerhead, may not be fully closing off the water supply to the tub faucet, causing water to leak out.


Why can't your sim take a shower?

the shower might be turned the wrong way so they can't use it or something could be blocking the shower the path to the shower.


At her bridal shower why do you think Angela turned the gold box containing the bomb to herself?

because she knew what was in the gold box because she had put the bomb in the gold box.


What could be wrong if when you are showering and another faucet is turned on the shower water cools?

Its a loss in water pressure to the shower.


Why do guys take a cold shower?

once a guy gets..."HOT" and turned on if hes not going to get some, either wack at it or take a cold shower, because when cold water is hitting him getting some will be the last thing on his mind


Why is my tub faucet leaking when the shower is turned on?

Your tub faucet may be leaking when the shower is turned on due to a faulty diverter valve. This valve directs water flow between the tub faucet and the showerhead, and if it is not working properly, water may leak out of the faucet when the shower is in use.


Why is water coming out of the shower head when it is turned off?

Water may continue to flow from the shower head after it is turned off due to a faulty valve or seal that is not fully closing, allowing water to leak through. This can result in water dripping or flowing out even when the shower is not in use.