Want this question answered?
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 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.
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.
rubber powered aeroplane are model plane
It's a flying model aircraft whose propeller is turned by an unwinding strip of rubber. Some of these planes are pretty big.
rubber band
I'm making mine out of cut up balloons.
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.
I would prefer not to buy any rubber bands but to make a rubber motor from strip. It would be possible to knot together a number of small bands but the flight results would probably not be very good. This strip material is generally available from model airplane "cottage industry" type sources and comes in widths from 1/8 to 1/4 inch with a nominal thickness of 1/32 inch and lengths up to 50 feet. It is characterized by extreme elasticity and low energy loss which allows many turns (twists) to be applied without breakage. Typically, a loop of 1/8 inch rubber will satisfactorily fly a model airplane weighing up to one ounce and having a wing span of 16 to 20 inches. Unwound, the loop should be around 1 1/2 times as long as the distance between attachment points with the propeller in place.
The type of model you would use to represent your human heart would be a physical model.
meaningless
Doesn't belong in Bands and Artists