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- sponges
- paper towel
- glass
- duck tape
- sawdust
- metals...
these are excellent insulators.....
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∙ 14y ago
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What feature of a thermos does not limit heat flow?
It's insulators
How do you make a thermos without a vacuum that prevents heat?
Insulate the thermos with a very low heat-conducting material. Low density objects such as ceramic or foam are typically good insulators.
What 3 insulators that can be used in a thermos bottle?
Heat, cold, pollution
Which type of container keeps liquid hotter for more time?
the answer is a Thermos because it is made with insulators.
What are some good insulators?
plastic, paper, wood, cardboard, and rubber are all good insulators
How thermos flask works to keep thing hot or cool?
Thermos jugs are just very good insulators. Just like your house, they're designed to keep one or the other of extreme temperatures away from the inside of the jug ...and vice versa. FriPilot
What are good food insulators?
I would guess that a vacuum thermos would be the best device to insulate a consumable liquid. The area of vacuum prevents heat loss or gain through conduction, and convection. I don't know how well it does to prevent radiation. I would think that prevention heat loss or gain through radiation would depend on what the material was made of. Also, if you keep the cap on the thermos as much as possible, it helps prevent heat loss or gain. Try to find the episode of Good Eats where Alton Brown talks about making sauces. I think I is hollandaise sauce that he talks about putting in a thermos and goes on to discuss how thermoses work.
What causes some materials to be good insulators of electrcity?
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Is a thermos good after 20 years?
Can be, if the vacuum is good. In glass thermos if the glass is not broken it is okay. In steel thermos if the vacuum has not been lost it will be. You can test a steel thermos by simply filling it with boiling water, if the outside of the thermos becomes hot the vacuum has been lost and one will need a new thermos.
Why are plastic good electricity insulators?
Plastics are a good electrical insulators because they are insulators. Electricity could not pass through them unlike copper. Another good example of insulators is rubber.
Why some thermos bottles are good for 24 hours but others are for 48 hours?
A thermos is only good because of the material it is made with. A thicker material will keep whatever is inside cold or warm longer.
Why are blankets good insulators?
Blankets are defined to be insulators.
