new solflare 投稿者:Billyfem 投稿日:2025/05/03(Sat) 00:12 No.504044
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.”
new Online Gambling: Fun or Fool’... 投稿者:Site - si 投稿日:2025/05/03(Sat) 00:10 No.504043
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new Plinko: The Thrill of Chance T... 投稿者:Plinko - apu 投稿日:2025/05/02(Fri) 23:58 No.504039
Plinko is a thrilling and well-known game that has attracted the attention of players across different platforms, from TV competitions to digital wagering arenas. The game plinko is famous for its straightforwardness, chance-based nature, and the anticipation of watching a disc or token plunge through a series of bumpers, ultimately landing in a prize slot or a cash-winning area.
Over the years, Plinko has transformed from a television game show segment into a full-fledged casino attraction, with internet-based gaming hubs featuring their own modern iterations. The beginnings of Plinko date back to its first appearance on the American game show The Price Is Right. Introduced in the eighties, the game rapidly turned into a beloved attraction due to its interactive gameplay and randomized results.
Contestants would release a circular chip, known as the Plinko ball or chip, from the uppermost section of the board. As it made its way down, the piece would collide with pins in a unpredictable manner before coming to rest in one of several payout pockets, each offering a different monetary reward.
new Online Gambling: Fun or Fool’... 投稿者:Site - si 投稿日:2025/05/02(Fri) 23:56 No.504036
Hey everyone,
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