Atomic Clocks Experiment Reveals Time Dilation at The Smallest Scale Ever

In his theory of general relativity, Einstein predicted something called time dilation: the notion that two clocks under two different gravitational pulls will always tick at different speeds.   The effect has been observed in many experiments since, but now scientists have recorded it at the smallest scale seen so far. The result was achieved using … Read more

Atomic clock experiment shows Einstein’s general relativity is right

Physicists have measured time dilation on the smallest scale ever using an atomic clock made of thousands of ultracold atoms formed into a stack of pancake-shaped blobs Physics 16 February 2022 By Alex Wilkins Time dilation has been measured inside a tiny atomic clock Jacobson/NIST The world’s most precise atomic clock has confirmed that the … Read more

New atomic clock loses only one second every 300 billion years

A group of physicists has announced one of the highest performance atomic clocks ever made. The instrument is said to measure time so precisely that it will only lose one second every 300 billion years, allowing for more exact measurements of gravitational waves, dark matter and other physics phenomena. A study based on the UW-Madison-led … Read more

This New Record in Laser Beam Stability Could Help Answer Physics’ Biggest Questions

Scientists are on a mission to create a global network of atomic clocks that will enable us to, among other things, better understand the fundamental laws of physics, investigate dark matter, and navigate across Earth and space more precisely.   However, to be at their most effective, these clocks will need to be reliably and … Read more

In a First, an ‘Atomic Fountain’ Has Measured the Curvature of Spacetime

In 1797, English scientist Henry Cavendish measured the strength of gravity with a contraption made of lead spheres, wooden rods and wire. In the 21st century, scientists are doing something very similar with rather more sophisticated tools: atoms. Gravity might be an early subject in introductory physics classes, but that doesn’t mean scientists aren’t still trying to … Read more

Curvature of space-time measured using ‘atomic fountain’

In 1797, English scientist Henry Cavendish measured the strength of gravity with a contraption made of lead spheres, wooden rods and wire. In the 21st century, scientists are doing something very similar with rather more sophisticated tools: atoms. Gravity might be an early subject in introductory physics classes, but that doesn’t mean scientists aren’t still … Read more

Astronomers discover ‘Maggie,’ a giant atomic cloud stretching across the Milky Way

Stretching thousands of light-years across the Milky Way, a newly discovered filament of hydrogen named Maggie is one of the biggest structures ever discovered in our galaxy, and researchers think there could be others like it. A group of astronomers led by researchers at the Max Planck Institute of Astronomy (MPIA) in Germany has spotted … Read more

Astronomers Discover One of The Biggest Structures Ever Seen in The Milky Way

Roughly 13.8 billion years ago, our Universe was born in a massive explosion that gave rise to the first subatomic particles and the laws of physics as we know them. About 370,000 years later, hydrogen had formed, the building block of stars, which fuse hydrogen and helium in their interiors to create all the heavier … Read more