Tag

Time Signals

All articles tagged with #time signals

science1 year ago

"Total Solar Eclipse Causes Subtle Shift in Global Time Signals and Upper Atmosphere, New Data Reveals"

The total solar eclipse on April 8 subtly shifted the upper atmosphere, altering the frequency of radio waves and affecting the "time signals" transmitted by the WWV radio station. The eclipse caused a Doppler shift in the radio waves, but the digital time codes remained unaltered, ensuring that timekeeping devices were unaffected. Similar frequency shifts were observed in other radio signals during the eclipse, and researchers noted that such shifts also occur naturally due to daily changes in the ionosphere caused by sunlight.

science-and-technology2 years ago

Advancements in Quantum-Limited Timing for Geosynchronous Satellites

Scientists have successfully transmitted time signals across 300 kilometers with an accuracy and precision limited only by the quantum nature of photons. This breakthrough could revolutionize high-precision science using satellites, including satellite navigation and fundamental-physics experiments that test the general theory of relativity. The time signals from atomic clocks can now be transmitted between Earth and satellites without compromising their precision and accuracy.