Tag Archives: Very-Long Baseline Interferometry
The clocks that used atoms and black holes to stay in sync
You’re familiar with clocks. There’s probably one if you look up just a little, at the upper corner of your laptop or smartphone screen, showing you what time of day it is, allowing you to quickly grasp the number of … Continue reading
Posted in Scicomm
Tagged atomic clocks, caesium standard, caesium-133, Event Horizon Telescope, frequency comb, hydrogen maser, International Celestial Reference Frame, Kashima, Koganei, Medicine, microwave clocks, Milky Way, optical atomic clocks, quasars, radio telescopes, SI units, strontium clock, uncertainty, Very-Long Baseline Interferometry, VLBI, ytterbium clock
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What is VLBI?
On June 25, scientists announced the discovery of a trio of supermassive black holes at the center of a galaxy 4.2 billion light years away. The find was credited to the European VLBI Network. A Space.com report stated that this … Continue reading
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Tagged atomic clocks, double-slit experiment, interference, radio astronomy, Thomas Young, Very-Long Baseline Interferometry, wave optics
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