A high-precision atomic clock could not only provide the most precise test of time dilation ever but could point the way to exciting new physics including a quantum description of gravity.
The most powerful lasers in the world can reach up to 10 petawatts (10 quadrillion, or 10,000,000,000,000,000,000 watts) of emitted light. They are used to study extreme plasmas and other rare phenomena in the universe. Scientists are also planning to build a 100 petawatt laser that will be used to tear energy from matter in empty space.
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