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Radiation is like light, it can travel through empty space. The "why" is a bit complex; basically, light, as well as similar radiations (including heat radiation) consists of electromagnetic waves. These can travel through empty space, since they are just waves in the electric and magnetic properties of space.
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Why do you not need a substance for heat transfer?
Any object emits electromagnetic radiation (heat radiation, usually infrared), according to its temperature. This can travel in empty space.
Does light need a substance to travel through?
No. It is radiation, not vibration. As electromagnetic energy, it can travel through a vacuum, and only through transparent or translucent material.
What needs a medium substance to travel through?
Mechanical waves need a medium substance to travel through. Electromagnetic do not.
Is the suns energy radiant?
Yes. Here's a logical proof: There are three ways to transfer energy from place to place: --Conduction, --Convection, --Radiation. Conduction and convection need a 'medium' ... a substance to conduct or convect through. Radiation doesn't need anything to travel through. There is no medium ... no substance ... in the space between the sun and the earth, but heat and light from the sun reach the earth constantly. Since there is no medium for it to travel through, it can't be getting here by means of conduction or convection. The only possibility is radiation.
Example of electromagnetic radiation?
Light is an example of electromagnetic radiation. EM radiation unlike other waves of energy doesn't need a medium to travel through hence why light energy can travel from the sun to the earth through the vacuum of space.
What substance do plants need to make sugar?
i dont cnow lololololololololololololololololololololololol
Do radio waves need a medium to travel through?
Radiation doesnt need a medium because it travels through space
Do you need vaccination to travel to Turkey?
You dont need any vaccination to travel to Turkey. Also there is not any mandotary vaccination.
Does a radiation wave need a medium to travel?
No. Heat from the sun gets to the earth by radiation, and there is no medium inbetween the sun and the earth because space is a vacuum.
What countries did Jim Dine travel to?
i dont know but i need the answer.
Why can heat travel through space by radiation but not by conduction and convection?
For conduction and convection we need a material medium. But for radiation such a meaterial medium is not necessary. So in free space radiation can pass through easily.
Does sound need to travel through material?
Sound (and vibration) are a wave system of sequential compressions and rarefactions of a material. These waves are mechanical and do need a substance through which to travel. They cannot travel through a vacuum.
