Magdeburg’s hemispheres Manufacturer,Supplier and Exporter in India
Product Code : SCL-MH-12756
The Magdeburg’s Hemispheres by Educational Instrument India is a classic physics laboratory apparatus designed to demonstrate the power of atmospheric pressure and the effect of vacuum. It is widely used in school science laboratories, college physics labs, STEM classrooms, and educational training institutes.
This apparatus generally consists of two hollow hemispheres that fit together to form a sealed sphere. When air is removed from inside the joined hemispheres using a vacuum pump, the outside atmospheric pressure holds the hemispheres tightly together. Students can observe that the hemispheres become difficult to separate until air is allowed back inside.
Magdeburg’s Hemispheres provide a clear and practical demonstration of atmospheric pressure, vacuum formation, pressure difference, and force due to air pressure. It is an excellent teaching aid for helping students understand how pressure acts in all directions and how a pressure difference can produce a strong holding force.
Product Specifications
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Specification |
Details |
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Product Name |
Magdeburg’s Hemispheres |
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Brand |
Educational Instrument India |
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Application |
Demonstration of atmospheric pressure and vacuum |
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Subject |
Physics / General Science |
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Suitable For |
Schools, colleges, laboratories, and STEM classrooms |
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Main Concepts |
Atmospheric pressure, vacuum, pressure difference, force due to pressure |
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Product Type |
Educational physics demonstration apparatus |
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Components |
Two hemispheres, sealing rim, handle, valve or outlet, and vacuum connection |
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Operation |
Manual demonstration with suitable vacuum pump |
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Compatible With |
Vacuum pump and rubber vacuum tubing |
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Usage Type |
Teacher demonstration and student practical observation |
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Material |
Laboratory-grade metal or durable material depending on model |
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Design |
Two-part hemispherical design with sealing surface |
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Finish |
Smooth, durable, and easy-to-clean finish |
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Packaging |
Securely packed for safe delivery |
How to Use
Place both hemispheres on a clean, dry, and stable laboratory table.
Check the sealing rims and ensure they are clean and free from dust.
Join the two hemispheres together carefully so that the sealing surfaces meet properly.
Apply a thin layer of vacuum grease or use a sealing ring if required.
Connect the outlet valve to a suitable vacuum pump using rubber vacuum tubing.
Start the vacuum pump and remove air from inside the hemispheres.
Close the valve after sufficient air has been removed.
Try to separate the hemispheres using the handles and observe the resistance.
Explain that the external atmospheric pressure holds the hemispheres together.
Open the valve slowly to allow air back inside.
Once pressure is equalized, separate the hemispheres easily.
Clean and store the apparatus safely after use.
Key Features
Demonstrates the strength of atmospheric pressure.
Shows the effect of vacuum and pressure difference.
Suitable for classroom demonstrations and laboratory practicals.
Helps students understand force due to air pressure.
Durable construction for repeated educational use.
Easy to connect with a suitable vacuum pump.
Useful for physics and general science teaching.
Clear and engaging apparatus for STEM learning.
Applications
Atmospheric pressure demonstrations
Vacuum experiments
Pressure difference studies
Force due to pressure experiments
Physics laboratory practicals
General science classroom teaching
STEM education activities
Teacher-led demonstrations
School and college laboratory training
Frequently Asked Questions
- What are Magdeburg’s Hemispheres used for?
Magdeburg’s Hemispheres are used to demonstrate atmospheric pressure and the force produced when a vacuum is created inside two joined hemispheres.
- How do Magdeburg’s Hemispheres work?
When air is removed from inside the hemispheres, the air pressure outside becomes greater than the pressure inside. This outside atmospheric pressure holds the hemispheres tightly together.
- Why are the hemispheres difficult to separate after air is removed?
They are difficult to separate because external atmospheric pressure pushes strongly on the outside surfaces while the pressure inside is reduced.
- Is a vacuum pump required?
Yes, a suitable vacuum pump is required to remove air from inside the hemispheres for the demonstration.
- What physics concept does this apparatus demonstrate?
It demonstrates atmospheric pressure, vacuum, pressure difference, and force due to pressure.
- Is this suitable for school laboratories?
Yes, it is suitable for school science labs, college physics labs, STEM classrooms, and educational institutions.
- How can the hemispheres be separated after the experiment?
Open the valve slowly to allow air back inside. Once the internal and external pressure becomes equal, the hemispheres can be separated easily.
- What safety precautions should be followed?
Use the apparatus on a stable surface, check the valve and tubing connections, avoid sudden vacuum release, and operate under teacher or laboratory supervision.
