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2B30.30 - Magdeburg Plate

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​2B30.30 - Magdeburg Plate

Title2B30.30 - Magdeburg Plate

Demonstrate that atmospheric pressure is strong enough to keep two evacuated plates together.​

Assembly Instructions

Clamp down the flat plate with the o-ring in the groove using squeezee clamps.  Then place the plate with the attached handle on top of the clamped down plate.  Attach the syringe vacuum pump to the top plate.  Make sure the valve is open for operation.

There is a show and tell version of this used by glass movers.  Available upon request.

Setup Time10
Operation Time5
Preview Time5
Operation Instructions

The Magdeburg hemispheres plates are set of plates which fit together along an air tight edge (the o-ring). One plate has a fitting which allows it to be pumped down by the syringe vacuum pump and sealed off. Hook up the syringe to the fitting and make sure the valve is open.  Pump down the set, close the valve and then disconnect the pump attachment. 

Now ask one students to come up and try to pull apart the plates... They can't. Release the valve and the plates should then pop right apart.

There is a show and tell version of this used by glass movers. Available upon request.

Demo on DimeNo
PIRA 200Yes
Export Instructions (if different)
Category2 Fluid Mechanics
Subcategory2B - Statics of Fluids
Keywordsatmospheric pressure, atmosphere, pull apart, plate, vacuum
Construction Information
Magdeburg Plate - a flat plate with o-ring groove and a flat plate with attached handle
Show and Tell - glass mover suction cups (single or double)
plastic sheet
squeezee clamp
simple vacuum pump - syringe