Robert Laughlin, a physics Nobel Laureate, published a book in 2005 entitled A Different Universe. It has the subtitle Continue reading A Nobel Laureate Turned Loose on Physics I: Principles of Disorganization
I am a “guest” here, invited by my longtime friend Sadri Hassani, with whom I studied physics at U. of Illinois – Urbana, back in the 1960’s. Sadri, thanks very much for inviting me! I’m posting this from a hotel room in Vienna, Austria, where I’m attending the “European Geophysical Society” meeting to give an invited talk about “Total Solar Irradiance” or “TSI”, or what used to be called the “solar constant” which is now being measured very accurately by NASA’s “Solar Radiation and Climate Experiment” (SORCE) for which I’ve served as the Project Scientist for 15 years. As a result of SORCE, we now know that the Sun’s TSI value is about 0.5% lower than the value accepted since the 1990’s. That means that the solar luminosity is also 0.5% lower, which increases the best estimate of the Sun’s lifetime from about 10.7 billion years to 10.75 billion years, giving us an extra 50 million years to figure out how to escape the solar-driven holocaust that is expected once the Sun ceases to fuse hydrogen into helium. Actually, the worry of what may happen to mankind when the Sun goes nova, in about 5 billion years, is not nearly as pressing as the worry of what may happen in the current decade of history, due to fossil fuel consumption, and the twin consequences of global warming and ocean acidification, about which I’ll write more in future posts. But now I’ve got to sign off, and say Auf wiedersehen! from here in Vienna.
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As the veteran educators remember, in the 1990s there was a national movement in the universities across Continue reading Physics and Human Sexuality