To create a model human arm, start by using paper towel rolls as the arm's structure and attach them together with tape for articulation. Use rubber bands to mimic muscles by connecting them between different segments of the arm. Balloons can serve as joints or additional muscle groups; inflate them slightly and secure them with glue or tape. Finally, use pins to reinforce connections and ensure stability throughout the model.
An elbow joint model can be made from PVC pipes, tape, cable ties, and rubber bands. The PVC pipe will be used to represent the bones, while the rubber bands will act as the tendons. Balloons may be used to represent the bicep and tricep muscles.
A working model of a human lung or a bell jar model can be used to demonstrate the breathing mechanism. These models typically include a pump to mimic the diaphragm movement, balloons or rubber sheets to represent the lungs, and tubes to simulate the airways. By manipulating these components, one can illustrate how the process of inhalation and exhalation occurs in the human respiratory system.
Many of the typical versions do, but some of the more advanced ones do not, such as the Flybar 1200 model, which uses giant rubber bands.
A lung model with balloons works by simulating the expansion and contraction of the lungs during breathing. The balloons represent the lungs, and as air is pumped in and out of the balloons, they inflate and deflate to demonstrate how the lungs function. This model helps visualize the process of breathing and how the lungs take in oxygen and release carbon dioxide.
A stretched rubber band has potential energy like a spring. It has the potential to snap back. I used to build model airplanes with rubber band motors. I also had a rubber band gun that shot rubber bands. The potential energy stored in the rubber bank is what made these devices work.
rubber powered aeroplane are model plane
rubber band
It's a flying model aircraft whose propeller is turned by an unwinding strip of rubber. Some of these planes are pretty big.
I'm making mine out of cut up balloons.
The model lung with balloons can be used to demonstrate how the diaphragm and rib muscles work together to expand and contract the lungs, mimicking the process of inhaling and exhaling. As the balloons inflate and deflate, it shows how the lungs fill with air when we breathe in and release air when we breathe out. This hands-on demonstration helps visualize the mechanics of breathing in a simple and interactive way.
You'll need to first find a pump that will mimic the human heart, then find the electric parts to keep it going. There might be clear alginate for the heart, or perhaps rubber. For that you'll need to search websites for art supplies or other warehouses that sellliquid rubber or alginate. Next you make form for the front and back halves of the hearts to coat with the rubber. Assemble the parts and see if it will do what you want. This project will take a bit of time to complete the experiments and find the products you need to make this work. I admire your ambition.
The type of model you would use to represent your human heart would be a physical model.