Like the proverbial tree falling in the forest, scientists wonder: does reality exist on its own . . . or just when you ...

Einstein wasn’t satisfied. At a 1927 conference, he suggested a way to catch light in both modes. If you could detect the ...

In 1905, Einstein established relativity under the condition of denying the absolute space-time valid in Newtonian mechanics. In those days, the quantum theory was also established by accepting De ...

More than 2,000 navigational beacons, big and small, oversee the nation’s 60,000-mile-long coast. Now they need an upgrade.

By proving how individual molecules create the complex motion of fluids, three mathematicians have illuminated why time can’t ...

Physicists at MIT recreated the double-slit experiment using individual photons and atoms held in laser light, uncovering the ...

MIT researchers used ultracold atoms to isolate the quantum trade-off between wave interference and particle path detection.

A groundbreaking experiment demonstrates yet again that light exists both as a wave and a particle in the quantum world—but ...

For a chosen electron and positron velocity of 100 meters/second, for example, the de Broglie wavelength is 7.28 microns.

A new version of the famous double-slit experiment showed that it's impossible to measure light as both a wave and a particle at the same time, thanks to quantum physics' uncertainty principle.