2B Statics of Fluids

Buoyancy of Air

Close the air valve and turn on the vacuum pump. The small ballon is to verify t

Buoyancy of Air

Catalog: 
2B40.40A
Location: 
Af3
Balanced sealed globe tips the scales towards it under bell jar during evacuation.

Weight of Air using the Magdeburg Sphere

Weigh the Magdeburg Sphere before and after using the vacuum pump.

Weight of Air using the Magdeburg Sphere

Catalog: 
2B40.45C
Location: 
Ae5
The Magdeburg Sphere is weighed before and after having the air pumped out. The sphere holds about .8 g of air. Depending on how long the vacuum pump runs .6 g or more of air can be removed.

Harbottle

Harbottle

Catalog: 
2B30.350
Location: 
Ae6
Balloon inside glass sphere with 2 openings

Compressibility of air/water.

Compressibility of air/water.

Catalog: 
2B20.71
Location: 
Ae5
A syringe filled with air is compressed when a large weight is placed on it, but a water filled syringe will not compress.

Magdeburg hemispheres - Welch

The Magdeburg "hemisphere" is difficult to pull apart when the air is evauated w

Magdeburg hemispheres - Welch

Catalog: 
2B30.30A
Location: 
Ae5
Evacuated hemispheres cannot be pulled apart.

Aneroid Barometer

Aneroid Barometer

Catalog: 
2B35.40A
Location: 
Ae5
Aneroid barometer

Cartesian Diver - Flat sided version

Cartesian Diver - Flat sided version

Catalog: 
2B40.30B
Location: 
Af2
Squeezing and releasing narrow edges of bottle makes diver rise or fall.

Density Rod

Density Rod

Catalog: 
2B40.59C
Location: 
Af3
A metal rod barely floats in cold water and sinks in hot water.

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