#2197
27.08.2023 19:11
AP
Aeon: We are not empty
The concept of the atomic void is one of the most repeated mistakes in popular science. Molecules are packed with stuff
The empty atom picture is likely the most repeated mistake in popular science. It is unclear who created this myth, but it is sure that Carl Sagan, in his classic TV series Cosmos (1980), was crucial in popularising it. After wondering how small the nuclei are compared with the atom, Sagan concluded that
[M]ost of the mass of an atom is in its nucleus; the electrons are by comparison just clouds of moving fluff. Atoms are mainly empty space. Matter is composed chiefly of nothing.
#2193
26.08.2023 15:52
AP
Reuters: Germany plans to double AI funding in race with China, U.S.
The AI push comes as Germany attempts to turn around its economy from a recession while the country's key autos and chemicals industries face stiff competition from upstart electric-vehicle makers and high energy costs.
#2183
23.08.2023 20:07
AP
RZ114 CERN: CMS
Aufbau, Funktion und Aufgabe des CMS-Detektors am CERN
Der CMS (Compact Muon Solenoid) ist einer der beiden Detektoren, die gemeinsam den Nachweis des Higgs-Bosons ermöglicht haben und ist eine dieser gigantischen Strukturen 100m unter der Erde am CERN and dem die vom LHC beschleunigten Teilchen untersucht werden.
Wie schon in den ersten beiden Raumzeit-Folgen der CERN-Serie ist der Gesprächspartner wieder ein Österreicher: Wolfgang Adam vom Institut für Hochenergiephysik.
#2181
21.08.2023 02:33
AP
All of physics in 9 lines
Motion Mountain: This 9-line summary of textbook physics agrees with 400 years of experiments. Exactly.
#2171
16.08.2023 23:51
AP
Boingboing: How often should you wash your jeans and other clothes? Doctors give some shocking answers
In fact, when it comes to jeans, Dr. Anthony Rossi of the American Academy of Dermatology said, "I personally don't wash my jeans." In his opinion, compromising the fabric of a nice pair of jeans isn't necessary unless they are truly soiled or stinky — a good jean material will hold up better if you keep them away from the washing machine, and not washing them won't hurt you.
#2159
12.08.2023 19:28
AP
Max Planck Institute for Plasma Physics: Wendelstein 7-X reaches milestone: Power plasma with gigajoule energy turnover generated for eight minutes
#2154
12.08.2023 18:51
AP
The Straits Times: Global Covid-19 cases up 80% as new sub-variant emerges
#2141
07.08.2023 22:04
AP
Ars Technica: Physicists achieve fusion with net energy gain for second time
#2135
05.08.2023 21:04
AP
The floor is lava
Reuters: How concrete, asphalt and urban heat islands add to the misery of heat waves
#2127
01.08.2023 22:31
AP
Raumzeit 111, 112: CERN
Die ersten beiden Folgen aus der CERN-Serie sind fest in wiener Hand:
#2124
01.08.2023 00:05
AP
Ars Technica: Europe turns its new $1.5 billion space telescope on, and happily it works
#2113
27.07.2023 22:56
AP
The Verge: Why sucking CO2 out of the atmosphere can’t undo all the effects of climate change
#2111
25.07.2023 22:05
AP
The Guardian: Gulf stream could collapse as early as 2025, study suggests
#2101
23.07.2023 23:35
AP
The Guardian: Queen guitarist and astrophysicist Brian May to release 3D atlas of asteroid
#2079
15.07.2023 21:02
AP
CNBC: FDA says soda sweetener aspartame is safe, disagreeing with WHO finding on possible cancer link
“Aspartame is one of the most studied food additives in the human food supply. FDA scientists do not have safety concerns when aspartame is used under the approved conditions,” an agency spokesperson said late Thursday shortly after the WHO released its findings.
[...]
An adult who weighs 70 kilograms, or 154 pounds, would have to drink more than nine to 14 cans of aspartame-containing soda daily to exceed the limit and potentially face health risks.
#2078
15.07.2023 20:34
AP
Ars Technica: What countries will heat up the most in a 2°-warmer world?
The need for air conditioning will skyrocket, with Africa and Europe hit hardest.