Plastic Magdeburg Hemisphere
Product Code : JA-FMDE-7821
The Plastic Magdeburg Hemisphere (SKU JA-FMDE-7821) is a pair of hemispheres used to demonstrate the force of atmospheric pressure. The two plastic Magdeburg hemispheres have handles at the top, a rubber O-ring seal and a plastic stopcock on one half; once the air inside is pumped out, students find it very hard to pull the halves apart. JaincoLab manufactures the set in India for school science laboratories.
Specifications
The apparatus consists of two lightweight plastic hemispheres, each with a handle at the top; one has a plastic stopcock for pumping out the air and releasing the vacuum and a rubber O-ring seal inside, and it can be connected to any suitable vacuum pump.
| Product | Plastic Magdeburg Hemisphere |
| SKU | JA-FMDE-7821 |
| Construction | Two lightweight plastic hemispheres, each with a handle at the top |
| Valve | Plastic stopcock on one hemisphere for evacuating and releasing the vacuum |
| Seal | Rubber O-ring inside |
| Evacuation | Connects to any suitable vacuum pump |
Demonstrations with the plastic Magdeburg hemispheres
The hemispheres are used to show the size of the force that air pressure exerts: after the air between the sealed halves is removed, the atmosphere pressing on the outside holds them together until the stopcock is opened and air is let back in.
- Demonstrating the effect of atmospheric pressure in middle and secondary school science
- Showing that the hemispheres separate easily once the vacuum is released through the stopcock
- Introducing the historical Magdeburg experiment in lessons on air pressure
- Group activities in which students try to pull the evacuated halves apart
Scope of supply and ordering
Each unit is a pair of plastic hemispheres with handles, O-ring seal and stopcock, as described above. The vacuum pump and quantities are confirmed on the quotation.
Minimum order quantity, lead time and packing are confirmed on each quotation according to the quantity and the delivery destination. JaincoLab supplies school orders, bulk quantities for education projects and export consignments to buyers in Africa, the Middle East and South and South-East Asia.
Frequently asked questions
What does the Plastic Magdeburg Hemisphere demonstrate?
It demonstrates the effect of atmospheric pressure: with the air removed, the two halves are held together by the pressure outside.
How is the air removed and let back in?
One hemisphere has a plastic stopcock that is connected to a suitable vacuum pump for evacuation and opened again to release the vacuum.
Is a vacuum pump included?
A pump is not part of this listing; a hand vacuum pump is listed separately and can be added to the quotation.
Related products
Browse the full Force, Motion and Dynamics equipment range or the complete catalogue from JaincoLab, a physics lab equipment manufacturer in India.
Request a quote
To order the Plastic Magdeburg Hemisphere, send the quantity and delivery destination through the JaincoLab contact page or email [email protected]. Tender and project enquiries can be sent through the tenders page.
