Cartesian devil Manufacturer,Supplier and Exporter in India
Product Code : SCL-MH-12725
The Cartesian Devil by Educational Instrument India is a practical physics laboratory apparatus designed to demonstrate the principles of buoyancy, pressure, density, compressibility of air, and fluid behavior. Also known as a Cartesian Diver, this apparatus helps students understand how a small object can float, sink, or rise in water when external pressure is applied.
This apparatus is ideal for school physics laboratories, college science labs, STEM classrooms, and educational training institutes. It provides a simple and visual demonstration of how pressure changes affect the volume of trapped air inside the diver, changing its density and causing it to move up or down in the liquid.
Key Features
Designed for demonstrating buoyancy, density, and fluid pressure.
Shows how pressure changes can make an object sink or float.
Useful for explaining Archimedes’ principle and Pascal’s principle.
Simple and engaging apparatus for classroom demonstrations.
Suitable for school, college, and STEM physics laboratory experiments.
Helps students understand compressibility of air inside a liquid system.
Durable and easy-to-use design for repeated educational use.
Product Specifications
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Product Name |
Cartesian Devil |
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Brand |
Educational Instrument India |
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Also Known As |
Cartesian Diver Apparatus |
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Product Type |
Physics Laboratory Fluid Mechanics Apparatus |
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Application |
Buoyancy, pressure, density, compressibility, and fluid mechanics experiments |
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Use |
Demonstrating how pressure changes affect floating and sinking behavior |
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Learning Concepts |
Buoyant force, density, pressure transmission, air compression, floating, sinking, Archimedes’ principle, and Pascal’s principle |
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Main Components |
Transparent container or bottle, water, Cartesian diver or devil figure, and sealing arrangement depending on model |
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Operation |
Manual pressure-based demonstration |
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Material |
Laboratory-grade plastic, glass, rubber, or acrylic components depending on model |
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Suitable For |
Schools, colleges, physics laboratories, STEM labs, science exhibitions, and training institutes |
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Condition |
New |
How to Use Cartesian Devil
Fill the transparent container or bottle with clean water as per the apparatus requirement.
Place the Cartesian devil or diver inside the water-filled container.
Close the container tightly to prevent leakage and maintain pressure.
Observe the diver floating near the top of the water.
Apply gentle pressure by squeezing the flexible container or using the pressure arrangement provided.
Observe the diver moving downward as pressure increases.
Release the pressure and observe the diver rising again toward the top.
Repeat the activity and explain how pressure compresses the trapped air inside the diver.
Discuss how the change in air volume changes the diver’s density and buoyancy.
After use, empty the water, clean the apparatus, and store it safely in a dry place.
Educational Applications
The Cartesian Devil is widely used in physics laboratories and STEM classrooms to teach buoyancy and fluid pressure in an interesting way. It helps students understand why objects float or sink and how pressure can change the density of a floating body. The apparatus is useful for explaining Archimedes’ principle, Pascal’s principle, density variation, air compression, and real-life applications such as submarines, divers, and buoyancy control systems.
Why Choose Educational Instrument India Cartesian Devil?
Designed for practical physics learning and classroom demonstrations.
Provides a clear visual explanation of buoyancy and pressure.
Easy to use, observe, and explain during practical classes.
Suitable for school laboratories, STEM activities, and science exhibitions.
Reliable educational apparatus for repeated hands-on learning.
Safety Instructions
Use the apparatus only under teacher or laboratory instructor supervision.
Do not apply excessive pressure to the container.
Ensure the container is properly closed before demonstration.
Handle glass or transparent parts carefully to avoid breakage.
Clean any spilled water immediately to prevent slipping or equipment damage.
Use only clean water or safe demonstration liquid.
Empty, clean, and dry the apparatus after use before storage.
FAQ
- What is a Cartesian Devil used for?
A Cartesian Devil is used to demonstrate buoyancy, density, fluid pressure, air compression, and the floating or sinking behavior of an object in water.
- Is the Cartesian Devil suitable for school laboratories?
Yes, the Cartesian Devil is suitable for school physics labs, college laboratories, STEM classrooms, science exhibitions, and educational training institutes.
- How does the Cartesian Devil work?
When pressure is applied to the container, air inside the diver is compressed. This increases the diver’s density, causing it to sink. When pressure is released, the air expands and the diver rises again.
- Which concepts can students learn from this apparatus?
Students can learn about buoyancy, density, pressure, Archimedes’ principle, Pascal’s principle, air compression, floating, sinking, and fluid mechanics.
- Can colored water be used with this apparatus?
Yes, lightly colored water can be used to improve visibility, but clean water is generally recommended for clear observation and easy maintenance.
