, Assistant Professor of Physics, Rutgers University - Newark
Above our heads there is a powerful energy source created by nature, the Sun. Because the Sun is 93 million miles from us, only one-billionth of the Sun s total energy output reaches the Earth, creating a world blooming with life. The energy that the sun gives the Earth s surface every second is more than the total electricity generated from all power plants in the world in the entire year of 2018.
Here on Earth, humans power machines mostly by harvesting energy: for example, harvesting the energy of falling water and converting it to electricity in hydroelectric power plants. To create energy, you have to convert matter to energy.
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How much energy can we create at one time without losing control? - Luis, age 9, Brookline, Massachusetts
Above our heads there is a powerful energy source created by nature, the Sun. Because the Sun is 93 million miles from us, only one-billionth of the Sun s total energy output reaches the Earth, creating a world blooming with life. The energy that the Sun gives the Earth s surface every second is more than the total electricity generated from all power plants in the world in the entire year of 2018.
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