Radiation never heats up .... when it is absorbed by matter then the matter heats up.
Radiation
Radiation
radiation
radiation
Radiation never heats up .... when it is absorbed by matter then the matter heats up.
Radiation
Radiation
Dark matter is matter that is inferred to exist from gravitational effects on visible matter and background radiation, but is undetectable by emitted or scattered electromagnetic radiation.
Radiation does not require matter.
Dark Matter
Neither. Radiation is energy, and not made of matter.
radiation
E = mc2
The world is composed from matter and radiation. That's why barbecue sauce is a matter.
Matter.
radiation