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Aerogel is 39 times more insulating than the best fiberglass ever made.
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∙ 12y ago
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What is the mass of a sample aerogel?
That's going to depend on the size of the sample you have. A larger sample will have more mass than a smaller sample, much like virtually every other known substance. Aerogel is a synthetic porous material derived from a gel, in which the liquid component of the gel has been replaced with a gas. The result is a solid with extremely low density and thermal conductivity. It is nicknamed frozen smoke, solid smoke, solid air or blue smoke owing to its translucent nature and the way light scatters in the material; however, it feels like expanded polystyrene (styrofoam) to the touch. Various samples of aerogel may have densities anywhere between 1 mg/cm3 (less dense than air) to 2 mg/cm3 .
A magnetic material has a relative permeability of 10000 what does this mean?
The relative permeability of 10,000 means that the material can support a magnetic field 10,000 times more dense than than a magnetic field in free space.
What does times more mean?
Three times more is NOT defined as "triple". Rather it is "triple more". Three times MORE than 4 is NOT 12. Three times AS MUCH as 4 is 12. Three times MORE than 4 is 12 more than 4, which is 16.
How many times more is hundred thousands then ten thousands?
10 times more. A hundred of anything is 10 times more than 10 of the same thing.
What is the density if the volume of a body is 45cc and mass is 180 kg?
Density = Mass/Volume = 180/45 = 4 kg per cc. That is very dense material - more than 180 times as dense as the densest element on earth - Osmium.
Is a material a good insulator if outer electrons of atoms in the material are free to roam around?
Freely moving electrons make materials more conductive, and less insulating.
What are some of the least dense materials?
Pentane is 0.626 g/cm^3 at 25 C and one atmosphere. Hydrogen is 0.070 g/cm^3 at -253 C and one atmosphere.Read more: What_is_the_lowest_density_liquid_commonly_availablei did not wright this!
What would happen if lightning rod was made of an insulating material?
They wouldn't work as lightning rods any more, so you'd lose all the benefit from them. It'd be like not having them at all.
What material is harder than a metal more than 3 times and more?
steel
What is the mass of a sample aerogel?
That's going to depend on the size of the sample you have. A larger sample will have more mass than a smaller sample, much like virtually every other known substance. Aerogel is a synthetic porous material derived from a gel, in which the liquid component of the gel has been replaced with a gas. The result is a solid with extremely low density and thermal conductivity. It is nicknamed frozen smoke, solid smoke, solid air or blue smoke owing to its translucent nature and the way light scatters in the material; however, it feels like expanded polystyrene (styrofoam) to the touch. Various samples of aerogel may have densities anywhere between 1 mg/cm3 (less dense than air) to 2 mg/cm3 .
Many insulating materials contain spaces filled with air because air is what type of material?
Some insulating materials contain a small air space because air itself is a good insulator. Because their are few molecules in air compared to the same volume of solid, it takes longer for the heat to be transferred through the layer of air. Thus, air is a cheap and lite insulator.
How would you build an elctromagnet?
get an nail wrap insulating wire around the nail( the more times you wrap it, it stronger it is), then connect one end of the wire to the positive end of a battery and the other to the negative end.
If plywood and glass have the same thickness what would be the best insulating?
Plywood. It has more trapped air.
Why does a black radiator radiate more heat than a white one?
I don't believe that it does. If this is true, it could be that black is a natural color for the sort of material (cast iron) that radiators are likely to be made of, while a white radiator probably has an insulating layer of paint on it.
Which is more dense 10 grams of chocolate or 100 grams of chocolate?
The density of a material does not change with mass. 100 grams of a material will occupy 10 times the volume of 10 grams of the same material.
Are scissors conductors or insulators?
Depends on what they're made of, not what they are.Anything made of a conducting material is a conductor, whatever it is.Anything made of an insulating material is an insulator, whatever it is.Material properties - conducting or insulating - is more important than shape.Scissors are generally - but not always - made of metal.And metals are usually conductors, making the scissors conductors.But a scissor might have plastic handles. Plastic is usually an insulator, which would make the handles insulators.
How is air an insulating material?
== == Anyhow -- simple answer: air is an insulating material when compared to other, solid materials. When we talk about insulation we're talking about slowing the transfer of energy from one place to another. Air insulates because it is less dense than, say, wood or glass -- so a double-paned window insulates better than a single paned one because the air space between slows the transfer of energy (heat) from one side to the other. Vacuum is a better insulator than air, though. And there are other, more complex factors than simple density when it comes to describing the insulating properties of solids.
