can energy be recycled without loss of substances?
What exactly do you mean by 'can energy be recycled' and what sort of substances.
Things cannot be created from nothing, something must be lost in order for anything to be created. And likewise things cannot be destroyed.
Energy from light can be extracted by reflecting it to infinity between two mirrors.The light looses energy and speed.The light can be accelerated again to regain it's energy and speed which has been lost.
Steve
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