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Possible Scenarios for Homochirality on Earth

By Michiya Fujiki

Possible Scenarios for Homochirality on Earth Natural Sciences

Possible Scenarios for Homochirality on Earth

0 - Default Title
Description
In 1978, Fred Hoyle proposed that interstellar comets carrying several viruses landed on Earth as part of the panspermia hypotheses. With respect to life, the origin of homochirality on Earth has been the greatest mystery because life cannot exist without molecular asymmetry. Many scientists have proposed several possible hypotheses to answer this long-standing L-D question. Previously, Martin Gardner raised the question about mirror symmetry and broken mirror symmetry in terms of the homochirality question in his monographs (1964 and 1990). Possible scenarios for the L-D issue can be categorized into (i) Earth and exoterrestrial origins, (ii) by-chance and necessity mechanisms, and (iii) mirror-symmetrical and non-mirror-symmetrical forces as physical and chemical origins. These scenarios should involve further great amplification mechanisms, enabling a pure L- or D-world.
Product details
Binding:
Paperback
Edition:
illustrated
Number of Pages:
318
Release Date:
2019-11-14
Publication Date:
2019-11-14
Publisher:
MDPI AG
Languages:
Original: English
ISBN10:
3039217224
ISBN13:
9783039217229
GPSR Manufacturer Reference:
[email protected]
Weight:
816 g
Height:
170 cm
Width:
244 cm
Thickness:
21 cm
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