entropy

warning: Creating default object from empty value in /homepages/42/d192712403/htdocs/website/arthur/life/modules/taxonomy/taxonomy.pages.inc on line 33.

My commentary on a question about Venus

Note: I wrote the following at the request of climate blogger "Science of Doom" - go there to read the full article in context! Also, please make comments over there, not here, thanks.

[The following is in regard to models of the high temperature of the surface of Venus which ascribe that high temperature essentially to the high atmospheric pressure on that planet, without properly recognizing the role of infrared absorption by greenhouse gases. In particular, Leonard Weinstein, in previous discussions there, had essentially claimed that even if all solar radiation were absorbed by a thin high layer in Venus' atmosphere at a relatively cool temperature, the surface temperature would still be very high. The following is why I disagree.]

Useful energy can only be used once

It's understandable that with all the concern about climate change and talk of "peak oil" that the central issue in both cases, our use of energy, has received a lot of attention. It is also understandable that with that attention have come many instances of what may charitably be called "optimistic business plans", acclaimed for some time, even quite lengthy periods of time, as "the" solution, or a "core" solution to our energy problems. There are some real solutions out there; there is also a lot of hype and hucksterism. With this and one or two follow-on articles I hope to help people not so familiar with the underlying science get a better grasp of the distinction.

Entropy flow - more from Kevin Kelly on "Cosmic Genesis"

Kevin Kelly has another post on The Cosmic Genesis of Technology. I sent him the following comments as corrections or perhaps refinements of the ideas. The introduction is quite poetic, and I think close to correct.

Syndicate content