Two mathematicians have proved that a straightforward question—how hard is it to untie a knot?—has a complicated answer.
Abstract: Deep learning technology has shown excellent performances and successful applications in optical information processing. However, the long-time training, large amount of manually labeled ...
Quantum entanglement shows particles can be instantaneously linked, challenging our understanding of space, time, and ...
They discovered a way around an important quantum physics law, enabling a future ability to navigate an interstellar journey, ...
Quantum computers are powerful, lightning-fast and notoriously difficult to connect to one another over long distances.
According to a study reported on for our in-depth look at pro runners’ mechanics, less experienced runners often put their ...
Physics can feel inscrutable to students; this lesson helps them understand a graphing problem by analyzing their own ...
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How Far Away Is Lightning?

Next time you're stuck in a thunderstorm, try this easy way to calculate how far away you are from lightning strikes.
How do we know the speed of light – and why does it have a speed limit at all? Leah Crane explores the history of one of the ...