heat energy.this comes from burning coke in the blast.
Well, since you can't really PRODUCE energy (create it out of nothing), you need an energy source. You will really convert an existing type of energy into another one, which is more useful for some purpose.You also need technology to do this energy conversion. What devices you need, will depend on the specific type of energy conversion.
A pulley on its own does not require any energy, as it's not doing anything.
figure it out kid
Coal
Yes, light production always involves some other energy being transformed into light energy.
Light energy.
uranium, plutonium,etc etc
geothermal energy
Photosynthesis for living things, solar for human energy production.
iron is the best conductor of heat.
Osmosis does not require a cell to expand its own energy. Osmosis is a type of diffusion process for water.
thermal energy study island