Four-wave mixing A weak optical signal (red) from a spacecraft transmitter can be amplified noise-free when it encounters two pump waves (blue and green) in a receiver on Earth. (Courtesy: Chalmers ...

The end to daylight saving time for 2024 means clocks in most parts of the U.S. "fall back" one hour in the early morning of Sunday, Nov, 3. Here's what to know about daylight saving time ...

This weekend, those clocks need to get turned back, as the end of daylight saving time is almost here. Daylight saving time will end on Sunday, Nov. 3, 2024 at 2 a.m. The annual task means the ...

A year ago, a mysterious signal was transmitted from Mars. And a father-daughter duo has finally cracked this extraterrestrial code. The signal, a series of white dots against a black background ...

This year, that date falls on Sunday, Nov. 3, with clocks rolling back one hour at 2 a.m. that morning. Daylight saving time is a changing of the clocks that typically begins in spring and ends in ...

A signal beamed at Earth from Mars in 2023 has finally been decoded by a father and daughter team in the United States. In 2023, a coded message was beamed at Earth from Mars. After over a year ...

Artificial intelligence represents one of the most consequential technologies of our time, promising tremendous benefits while posing serious risks to the nation’s security and democracy. The 2024 ...

If you’ve ever experienced the sight and sound of a split-flap display then you’ll immediately understand the nostalgic appeal of Miniot’s pixelated wall clock. Klapklok uses mechanical ...

Microsoft’s PC Manager, which is quite popular among some users, especially in Asia, is getting a big update (version 3.14) after a long time. The PC Manager for Windows 11 (and Windows 10) now ...

While the first atomic clock was invented in 1949, no nuclear clock has yet been feasible. The simple reason is that it takes much more energy to excite a nucleus into a higher energy state than ...

In May 2023, the ESA's Exomars Trace Gas Orbiter (TGO), currently in orbit around Mars, sent a signal to Earth to simulate a possible extraterrestrial transmission ... (A Sign in Space) "The 'blocks' ...

Since the clocks changed in March, Washington has been running on Pacific Daylight Time. But starting this weekend, that will change. This year, the end of daylight saving time falls on Sunday ...