quantum mechanics
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Physicists Measure Gravity of Smallest Mass Yet
Despite keeping us grounded and warping light that travels through space, gravity is actually quite a weak force. The smaller the mass, the less gravity appears to have any pull, until at quantum scales it appears to have no force at all. Now, physicists in England and Europe have measured a tiny—but apparent—gravitational pull on…
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Physicists Simulate Time Travel Using Quantum Entanglement
The quantum world operates by different rules than the classical one we buzz around in, allowing the fantastical to the bizarrely normal. Now, a team of physicists has used quantum entanglement to simulate a closed timelike curve—in layman’s terms, time travel. Before we proceed, I’ll stress that this was simulated; no quantum particles went back…
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What We Will Never Know
There is a realm the laws of physics forbid us from accessing, below the resolving power of our most powerful microscopes and beyond the reach of our most sensitive telescopes. There’s no telling what might exist there — perhaps entire universes.
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New Quantum Microscope Can See Tiny Structures in Living Cells
A team of researchers in Germany and Australia recently used a new microscopy technique to image nano-scale biological structures at a previously unmanageable resolution, without destroying the living cell. The technique, which employs laser light many millions of times brighter than the Sun, has implications for biomedical and navigation technologies.