linkedin post 2021-12-31 05:52:51

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THE POSSIBILITY OPENS. “In other words, if a negative energy solution is unstable in Minkowski (flat) spacetime, but is stable in an Einstein-de Sitter spacetime, while a few billion years are required to determine whether you live in one or the other of these two universes, it means that the instability of the negative mass solution has at most a characteristic timescale of a few billion years.” https://lnkd.in/daA2SgMy View in LinkedIn
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linkedin post 2021-12-31 05:55:03

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NEGATIVE ENERGY. “Since fermions always come in pairs, the vacuum breaks down with pair creation when a electron of mass me is confined in a potential well of depth larger than −2mec2 and not mec2, so that the electron has a negative total energy of −mec2 when the vacuum starts to break down.” https://lnkd.in/daA2SgMy View in LinkedIn
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linkedin post 2021-12-31 05:57:41

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TIME TRAVEL. “And we also know since the early 1990s that building a time machine in general relativity —for example using a wormhole as a time machine— requires violating the positivity of energy. It is therefore natural to test whether antimatter is not by any chance such an “exotic” material.” https://lnkd.in/daA2SgMy View in LinkedIn
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linkedin post 2021-12-31 05:59:02

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THE DOMINANT PLANT SPECIES. “It has become traditional to open a discussion of angiosperm origins by quoting Charles Darwin who described the problem as an abominable mystery. But what is so mysterious and so abominable about angiosperm origins is that, after 140 years of research and profuse publication, there still is no light at the end of the tunnel?” https://lnkd.in/dq9cE6j2 View in LinkedIn
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linkedin post 2022-01-01 07:44:12

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FRAGMENT FROM NATURE features the work of the geologist, the late Professor Warren Hamilton, who undertook a new and radical explanation for the Cambrian explosion some 600 million years ago, in an attempt to overturn dogmatic ideas prevalent at the time. The Cambrian explosion has always lacked a convincing story and this may be a compelling part of it, combined with global flooding wiping the older fossil record clean. View in LinkedIn
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linkedin post 2022-01-01 07:46:05

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MAGNETIC SHIELDING AND CAMBRIAN EXPLOSION. “The Phanerozoic has been the era of plate tectonics. Lithosphere motions documented by paleomagnetism suggest Earth’s dipole magnetic field may have developed at ~600 Ma. The Cambrian explosion in which most modern phyla evolved may have required its shielding against radiation.” https://lnkd.in/d8AxQ-kU View in LinkedIn
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linkedin post 2022-01-01 07:47:59

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WARREN HAMILTON. “Warren B. Hamilton, PhD, Geology, is Distinguished Senior Scientist, Department of Geophysics, Colorado School of Mines. For 43 years he worked at the U.S. Geological Survey. He was an author in over 100 refereed articles from the 1950s to the present, and in 1989 he received the Penrose Medal, the Geological Society of America's highest award.” https://lnkd.in/d8kyQ4xj View in LinkedIn
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