| Autor |
Kommentar |
ritakm69   |
| Eintrag 621673 vom 30.04.2025, 15:00 |
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| Timothyhef |
| Eintrag 621672 vom 30.04.2025, 13:29 |
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| williegi60 |
| Eintrag 621671 vom 30.04.2025, 13:14 |
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| Timothyhef |
| Eintrag 621670 vom 30.04.2025, 12:34 |
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| dwayneqo69 |
| Eintrag 621669 vom 30.04.2025, 11:58 |
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| nanniehx16 |
| Eintrag 621668 vom 30.04.2025, 09:42 |
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| dellaqu69 |
| Eintrag 621667 vom 30.04.2025, 09:40 |
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| ThomasweamI |
| Eintrag 621666 vom 30.04.2025, 09:31 |
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| Water and life
Eth Mixer
Lightning is a dramatic display of electrical power, but it is also sporadic and unpredictable. Even on a volatile Earth billions of years ago, lightning may have been too infrequent to produce amino acids in quantities sufficient for life — a fact that has cast doubt on such theories in the past, Zare said.
Water spray, however, would have been more common than lightning. A more likely scenario is that mist-generated microlightning constantly zapped amino acids into existence from pools and puddles, where the molecules could accumulate and form more complex molecules, eventually leading to the evolution of life.
“Microdischarges between obviously charged water microdroplets make all the organic molecules observed previously in the Miller-Urey experiment,” Zare said. “We propose that this is a new mechanism for the prebiotic synthesis of molecules that constitute the building blocks of life.”
However, even with the new findings about microlightning, questions remain about life’s origins, he added. While some scientists support the notion of electrically charged beginnings for life’s earliest building blocks, an alternative abiogenesis hypothesis proposes that Earth’s first amino acids were cooked up around hydrothermal vents on the seafloor, produced by a combination of seawater, hydrogen-rich fluids |
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| Timothyhef |
| Eintrag 621665 vom 30.04.2025, 08:03 |
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| DonaldceW |
| Eintrag 621664 vom 30.04.2025, 06:29 |
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| Water and life
Ethereum Mixer
Lightning is a dramatic display of electrical power, but it is also sporadic and unpredictable. Even on a volatile Earth billions of years ago, lightning may have been too infrequent to produce amino acids in quantities sufficient for life a fact that has cast doubt on such theories in the past, Zare said.
Water spray, however, would have been more common than lightning. A more likely scenario is that mist-generated microlightning constantly zapped amino acids into existence from pools and puddles, where the molecules could accumulate and form more complex molecules, eventually leading to the evolution of life.
Microdischarges between obviously charged water microdroplets make all the organic molecules observed previously in the Miller-Urey experiment, Zare said. We propose that this is a new mechanism for the prebiotic synthesis of molecules that constitute the building blocks of life.
However, even with the new findings about microlightning, questions remain about lifes origins, he added. While some scientists support the notion of electrically charged beginnings for lifes earliest building blocks, an alternative abiogenesis hypothesis proposes that Earths first amino acids were cooked up around hydrothermal vents on the seafloor, produced by a combination of seawater, hydrogen-rich f |
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