Making insulator that keeps water at the same temperature

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Creating an effective insulator to maintain water temperature can be achieved using recycled materials like Styrofoam and aluminum. Incorporating reflective surfaces, such as mirrors, can enhance insulation by minimizing heat loss through radiation. Nested containers with a small air gap are also effective, as they reduce contact with the outer environment and limit air circulation. It's essential to address heat loss through conduction, convection, and radiation in the design. The project emphasizes creativity in using available materials for optimal thermal insulation.
CityNoise
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Well i have to do this project/experiment creating an insulator that keeps water at the same temperature for an hour or some duration of time. I was thinking of Styrofoam, but i just wanted to post this here in case someone could help me out or give some ideas. I have to use recycled materials.

thanks
 
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CityNoise said:
Well i have to do this project/experiment creating an insulator that keeps water at the same temperature for an hour or some duration of time. I was thinking of Styrofoam, but i just wanted to post this here in case someone could help me out or give some ideas. I have to use recycled materials.

thanks

I don't know exactly what you will have on hand, but if you can line the inside of your insulator with mirrors (reflective surface facing in, of course) you can make it insulate better. This is a trick that most thermos bottle makers use.

-Dan
 
yea i thought about Aluminum. Any other ideas?
 
Aluminium Spray paint
 
Nested containers. A small air gap is about as good insulation as you can get. You need to minimize the contact with the outer container and take care to eliminate air circulation.
 
Heat is lost through radiation, convection and condution. You should aim to design your setup so that these factors are minimized.
 
The book claims the answer is that all the magnitudes are the same because "the gravitational force on the penguin is the same". I'm having trouble understanding this. I thought the buoyant force was equal to the weight of the fluid displaced. Weight depends on mass which depends on density. Therefore, due to the differing densities the buoyant force will be different in each case? Is this incorrect?

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