How many photons are received per bit transmitted from Voyager 1? (physics.stackexchange.com)
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second study www.nejm.org/doi/10.1056/NEJMoa2105675
crosspostato da: lemmy.ml/post/12123473...
42?
“Imagine the Earth almost completely frozen over,” said the study’s lead author, ARC Future Fellow Dr Adriana Dutkiewicz. “That’s just what happened about 700 million years ago; the planet was blanketed in ice from poles to equator and temperatures plunged. However, just what caused this has been an open question....
Here’s the article they’re reporting on: www.thelancet.com/journals/lanhl/…/fulltext
Topical application of caffeine:...
Like rivers feeding oceans, streams of gas nourish galaxies throughout the cosmos. But these streams, which make up a part of the so-called cosmic web, are very faint and hard to see. While astronomers have known about the cosmic web for decades, and even glimpsed the glow of its filaments around bright cosmic objects called...
In the 19th century, miners in southern Spain unearthed a prehistoric burial site in a cave containing some 22 pairs of ancient sandals woven out of esparto (a type of grass). The latest radiocarbon dating revealed that those sandals could be 6,200 years old—centuries older than similar footwear found elsewhere around the...
ABSTRACT: The independent modulation of visible and near-infrared light by a single material, termed dual-band electrochromism, is highly desirable for smart windows to enhance the energy efficiency of buildings. Tungsten oxides are commercially important electrochromic materials, exhibiting reversible visible and near-infrared...