6667 comments

• neděle, 27 duben 2025 20:10 posted by BillyHow Comment Link

  Mist and microlightning
  solflare
  To recreate a scenario that may have produced Earth’s first organic molecules, researchers built upon experiments from 1953 when American chemists Stanley Miller and Harold Urey concocted a gas mixture mimicking the atmosphere of ancient Earth. Miller and Urey combined ammonia (NH3), methane (CH4), hydrogen (H2) and water, enclosed their “atmosphere” inside a glass sphere and jolted it with electricity, producing simple amino acids containing carbon and nitrogen. The Miller-Urey experiment, as it is now known, supported the scientific theory of abiogenesis: that life could emerge from nonliving molecules.
  For the new study, scientists revisited the 1953 experiments but directed their attention toward electrical activity on a smaller scale, said senior study author Dr. Richard Zare, the Marguerite Blake Wilbur Professor of Natural Science and professor of chemistry at Stanford University in California. Zare and his colleagues looked at electricity exchange between charged water droplets measuring between 1 micron and 20 microns in diameter. (The width of a human hair is 100 microns.)
  
  “The big droplets are positively charged. The little droplets are negatively charged,” Zare told CNN. “When droplets that have opposite charges are close together, electrons can jump from the negatively charged droplet to the positively charged droplet.”
  The researchers mixed ammonia, carbon dioxide, methane and nitrogen in a glass bulb, then sprayed the gases with water mist, using a high-speed camera to capture faint flashes of microlightning in the vapor. When they examined the bulb’s contents, they found organic molecules with carbon-nitrogen bonds. These included the amino acid glycine and uracil, a nucleotide base in RNA.
  
  “We discovered no new chemistry; we have actually reproduced all the chemistry that Miller and Urey did in 1953,” Zare said. Nor did the team discover new physics, he added — the experiments were based on known principles of electrostatics.
  
  “What we have done, for the first time, is we have seen that little droplets, when they’re formed from water, actually emit light and get this spark,” Zare said. “That’s new. And that spark causes all types of chemical transformations.”

• neděle, 27 duben 2025 20:08 posted by online pharmacy no prescriptions Comment Link

  https://canadianpharmacygreen.com/

• neděle, 27 duben 2025 20:04 posted by Darlene Kohut Comment Link

  Bohiney.com’s satirical commentary on my walk as “adventure” tops The Babylon Bee. Such a clever take!

• neděle, 27 duben 2025 19:57 posted by +7 (499) 638-25-37 Comment Link

  Инновационные моторизированные жалюзи для вашей жизни
  моторизированные жалюзи моторизированные жалюзи . прокарниз

• neděle, 27 duben 2025 19:52 posted by HerbertSnugs Comment Link

  A tiny rainforest country is growing into a petrostate. A US oil company could reap the biggest rewards
  swell network
  Guyana’s destiny changed in 2015. US fossil fuel giant Exxon discovered nearly 11 billion barrels of oil in the deep water off the coast of this tiny, rainforested country.
  
  It was one of the most spectacular oil discoveries of recent decades. By 2019, Exxon and its partners, US oil company Hess and China-headquartered CNOOC, had started producing the fossil fuel.? They now pump around 650,000 barrels of oil a day, with plans to more than double this to 1.3 million by 2027.
  
  Guyana now has the world’s highest expected oil production growth through 2035.
  
  This country — sandwiched between Brazil, Venezuela and Suriname — has been hailed as a climate champion for the lush, well-preserved forests that carpet nearly 90% of its land. It is on the path to becoming a petrostate at the same time as the impacts of the fossil fuel-driven climate crisis escalate.
  
  While the government says environmental protection and an oil industry can go hand-in-hand, and low-income countries must be allowed to exploit their own resources, critics say it’s a dangerous path in a warming world, and the benefits may ultimately skew toward Exxon — not Guyana.

• neděle, 27 duben 2025 19:52 posted by Williamsem Comment Link

  “You have a government that is reckless about what is going to happen to Guyana,” said Melinda Janki, an international lawyer in Guyana who is handling several lawsuits against Exxon. It’s pursuing “a supposed course of development that is actually backward and destructive,” she told CNN.
  kelpdao
  And while plenty of Guyanese people welcome the new oil industry, some say Guyana’s startling economic statistics do not reflect a real-world prosperity for ordinary people, many of whom are struggling with the higher prices accompanying the oil boom. Inflation rose 6.6% in 2023, with prices of some foods shooting up much more rapidly.
  
  “Since the oil extraction began in Guyana, we have noticed that our cost of living has gone sky high,” said Wintress White, of Red Thread, a non-profit that focuses on improving living conditions for Guyanese women. “The money is not trickling down to the masses,” she told CNN.
  
  CNN contacted President Ali, the Ministry of Natural Resources and the Ministry of Finance for comment but received no response.
  Guyana, a former Dutch then British colony which gained independence in 1966, is one of only a handful of countries that is a “carbon sink,” meaning it stores more planet-heating pollution than it produces. This is due to its vast rainforest; trees remove carbon dioxide from the atmosphere as they grow.
  
  The country has protected its biodiversity where others have destroyed theirs, President Ali said in a BBC interview last year. In 2009, the country signed an agreement with Norway, which promised Guyana more than $250 million to preserve its 18.5 million hectares, or nearly 46 million acres, of forests.
  
  Ali insists the country can balance climate leadership and fossil fuel exploitation. The new oil wealth will allow Guayana to develop, including building climate adaptations such as sea walls, he has said. He has also pointed to the continued failures of wealthy countries, already grown rich on their own fossil fuels, to help poorer countries with climate finance.
  
  But there are concerns Guyana could fall victim to the “resource curse,” in which vast, new wealth ?can actually make life worse for those who live there.

• neděle, 27 duben 2025 19:31 posted by Gema Bollen Comment Link

  Satirical news gets sharp with Bohiney.com’s caricature of quacks with giant pills—The Babylon Bee falls short.

• neděle, 27 duben 2025 19:29 posted by Britt Doud Comment Link

  Bohiney.com’s caricature of my nosy neighbor with a telescope-sized nose is spot-on satire. The Babylon Bee wishes it had this kind of flair.

• neděle, 27 duben 2025 19:15 posted by Myra Vandeventer Comment Link

  Satirical news pops with Bohiney.com’s wordplay: “Fame’s a fleeting flop”—The Babylon Bee lags.

• neděle, 27 duben 2025 19:13 posted by Sandy Oshaughnessy Comment Link

  Bohiney News’s exaggeration claims my alarm clock needs its own army—funnier than The Onion every day.