For more than a century, a single metal cylinder in a Paris vault quietly defined what a kilogram was. After 130 years, ...

Physicists are no longer content to let atoms blur into invisibility. By squeezing light into pulses that last just ...

Time is almost up on the way we track each second of the day, with optical atomic clocks set to redefine the way the world ...

The Einstein–de Haas effect, which links the spin of electrons to macroscopic rotation, has now been demonstrated in a ...

The Bulletin of the Atomic Scientists set the clock to 85 seconds before midnight, the theoretical point of annihilation.

Using single broadband X-ray pulses from a free-electron laser on a gaseous neon target, coherent, nonlinear four-photon interactions with core–shell electrons is demonstrated, representing a strategy ...

Researchers have uncovered how atoms subtly rearrange themselves for up to a trillionth of a second before releasing low-energy electrons after X-ray excitation.

Explore how the Baby Boomer Age Wave Theory predicts economic shifts due to changes in baby boomer spending habits after age 50. Learn about its societal effects.

Long before quantum mechanics existed, a scientist developed a powerful way of describing motion by drawing an analogy between particles and light.

Morningstar Quantitative Ratings for Stocks are generated using an algorithm that compares companies that are not under analyst coverage to peer companies that do receive analyst-driven ratings.

Atomistic models are computational models that mimic the behaviour of a complex system by explicitly taking its smallest constituent parts into account. In materials science and chemistry, an ...