Comments on: New light shed on the origins of Earth’s water /news/2015/11/16/new-light-shed-on-the-origins-of-earths-water/ News from the University of Hawaii Tue, 22 Jun 2021 01:16:35 +0000 hourly 1 By: Mr. Raymond Kenneth Petry /news/2015/11/16/new-light-shed-on-the-origins-of-earths-water/#comment-520751 Wed, 18 Nov 2015 21:44:02 +0000 http://www.hawaii.edu/news/?p=40547#comment-520751 In reply to Pat.

Pat, I’ll venture an amusing answer:— ‘half’ the water is recycled via rain, but the other ‘half’ is biologically processed by food production and consumption, molecularly from and to water again. Plus water in its collective abundance exchanges its atomic constituents freely (hydrogen and oxygen exchange among molecules; best evidence being if you mix D2O and H2O you instantly have 50% HDO) and I’d suppose with other sources. So while nuclear protons and neutrons, and electrons, are predominantly Made In Big Bang, the water molecules are continually recycled water… (but n.b. atomic recycling does not make water clean of pollutants)….

]]> By: Pat /news/2015/11/16/new-light-shed-on-the-origins-of-earths-water/#comment-520104 Wed, 18 Nov 2015 02:21:04 +0000 http://www.hawaii.edu/news/?p=40547#comment-520104 So is the water we drink billions of years old or do water molecules break apart and recombine into new water?

]]> By: Mr. Raymond Kenneth Petry /news/2015/11/16/new-light-shed-on-the-origins-of-earths-water/#comment-519819 Tue, 17 Nov 2015 06:40:57 +0000 http://www.hawaii.edu/news/?p=40547#comment-519819 Not disputing the finding but maybe at the level of total significance, Wouldn’t this be true for Venus too, Earth’s early formation zone twin, Yet then, why doesn’t Venus have e.g. plate tectonics, requiring water, unless that problem is already dismissed for lack of coriolis rotation?

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