Introduction If you wanted to measure the circumference of Earth, how long would your tape measure have to be? Would you need to walk the whole way around the world to find the answer? Do you think ...
An artist's depiction of the ICESat-2 satellite at work studying Earth's ice sheets. This weekend, NASA is planning to launch a spacecraft that will use half a dozen bright-green laser beams to ...
Researchers have made a precise measurement of the size of the proton -- a crucial step towards solving a mystery that has preoccupied scientists around the world for the past decade. The world's ...
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A more precise measure of Earth's wobble
Recently, the results of a 250-day experiment to refine a particular motion of our planet were published in the journal Science Advances. Lead author K. Ulrich Schreiber from the TUM Institute of ...
When it comes to measuring our position on the Earth, we tend to turn to one of the global positioning satellite constellations. For standard commercial devices, the absolute position accuracy is a ...
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