The sun is extraordinarily generous, giving huge parts of itself away every second. How much? Well if you remember that energy and matter are interchangeable, then every second the equivalent of 4 million elephants are being transformed into light. The sun is giving itself away. If this generosity should halt, all energy would eventually lose its source and everything would die and become inert. We, and everything on our planet, live because of the generosity of the sun.
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