It can come from man (air heating,gas heating,ect.) and it can come from nature (the sun)
Electricity is a form of energy that is found in nature (such as lightning) and can be produced by man through various means like generators and batteries.
You do not found C.F.L. bulb in nature as such. So it is an artificial or man made source of light. It consumes very less energy. As it does not gives out heat.
When a man is running, chemical energy stored in his muscles is converted to kinetic energy for movement. Some energy is also converted to heat due to friction between his feet and the ground.
The sun is by far (99.999%) where the earth gets all of it's energy from. Therefore you can make the argument that every process on earth, man or nature, is driven by the sun.
"Yet it is certain that the power to produce this delight, does not reside in nature, but in man, or in a harmony of both.."
It is a man-made element and, due to its high radioactivity does not exist in nature.
Friction often causes some of an object's mechanical energy to be changed into heat energy. This is because as two surfaces rub against each other, the energy of motion gets converted into thermal energy due to the resistance of the surfaces.
Shapes that come from nature and do not look man made. Like flowers and flowing lines.
Shapes that come from nature and do not look man made. Like flowers and flowing lines.
because it is warm water that travel to heat the earth and it creates electricity
The Earth emits thermal energy in the form of heat as a result of its core's high temperature. This thermal energy is primarily generated by the decay of radioactive isotopes and residual heat from Earth's formation.
wath is man destroya of nature