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Step 17Complete Apparatus
Here is the complete Guinea and Feather apparatus from top to bottom. There is a one meter stick (white) in front of the cart, and a two meter stick (brown) in front of the left support tube. The total height is approximately 252 cm (8 feet, 3 inches) tall.
After some sanding, the aluminum parts look pretty good.
To demonstrate the different fall times at atmosphere, all three toggle valves are opened. The hose is then connected and the pump is turned on. After sufficient vacuum is reached, the valves are closed and the hose is disconnected. Most of the air has now been removed, and the gauge still reads the pressure in the tubes.
After some sanding, the aluminum parts look pretty good.
To demonstrate the different fall times at atmosphere, all three toggle valves are opened. The hose is then connected and the pump is turned on. After sufficient vacuum is reached, the valves are closed and the hose is disconnected. Most of the air has now been removed, and the gauge still reads the pressure in the tubes.
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