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Новости за 28.06.2023

Mountains vulnerable to extreme rain from climate change

Phys.org 

As the world warms, extreme weather events grow—and they also change. Researchers at the Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) found that climate change is shifting snowfall to rainfall on mountains across the Northern Hemisphere. Those surges of liquid water bring a distinct set of dangers, including floods, landslides, and soil erosion.

Starlight and the first black holes: Researchers detect the host galaxies of quasars in the early universe

Phys.org 

New images from the James Webb Space Telescope (JWST) have revealed, for the first time, starlight from two massive galaxies hosting actively growing black holes—quasars—seen less than a billion years after the Big Bang. A new study in Nature finds the black holes have masses close to a billion times that of the sun, and the host galaxy masses are almost one hundred times larger, a ratio similar to what is found in the more recent universe. A powerful combination of the Subaru Telescope and the JWST... Читать дальше...



Squash bugs are attracted to and eat each other's poop to stock their microbiome

Phys.org 

Squash bugs, a common and difficult-to-control agricultural pest, need healthy bacteria in their gut to grow and stay alive. However, they do not acquire any bacteria from their parents when they are first born, leaving them vulnerable until their microbiome can be stocked. Researchers report in the journal Current Biology on June 28 that, to acquire these healthy bacteria, young bugs innately seek out and eat the poop from older squash bugs.

How urea may have been the gateway to life

Phys.org 

Researchers from ETH Zurich and the University of Geneva have developed a new method that allows them to observe chemical reactions taking place in liquids at extremely high temporal resolution. This means they can examine how molecules change within just a few femtoseconds—in other words, within a few quadrillionths of a second. The method is based on earlier work done by the same group of researchers led by Hans Jakob Wörner, Professor of Physical Chemistry at ETH Zurich. That work yielded similar... Читать дальше...

Extreme heat gripping parts of Texas

CBSNews.com 

Officials say triple-digit temperatures will be "life-threatening" for people working or spending time outdoors Wednesday because of extremely high levels of humidity. Christian Grisales, public information officer for Dallas County Health and Human Services, has advice for people trying to beat the heat.

Cuttlefish camouflage gets complicated - Ars Technica

Top Stories (us) - Google News (com) 

  1. Cuttlefish camouflage gets complicated  Ars Technica
  2. The dynamics of pattern matching in camouflaging cuttlefish  Nature.com
  3. High-resolution cameras with AI show cuttlefish camouflage is more complex than previously thought  Phys.org
  4. View Full Coverage on Google News

Movies Are Being Killed by Franchise Ambitions

Gizmodo.com 

It’s often impossible to watch something completely divorced from the context surrounding it. Despite what some may have you believe, once you know about the controversy attached to a film or show, you can’t un-know it, and that’s going to affect how you view the finished product in question.

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