Author Archives: Dennis SILVERMAN

About Dennis SILVERMAN

I am a retired Professor of Physics and Astronomy at U C Irvine. For a decade I have been active in learning about energy and the environment, and in lecturing and attending classes at the Osher Lifelong Learning Institute (OLLI) at UC Irvine.

The Iowa Caucus Results – Do The Math

Iowa Caucus Results – Do The Math First lets get some perspective. Iowa is a proportional split state, not a winner-take-all state. What percent of the total national party delegates come from Iowa? For the Republicans it is 30 delegates … Continue reading

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Odds on the Number of PowerBall Lottery Winners

There is a simple formula for the average number of lottery winners, and for the probability of various number of winners or the distribution of winners.  It of course depends on the ratio of the number of tickets bought N … Continue reading

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February Primaries’ Effects on Other State Primaries

From the viewpoint of the California voter, where we have the most delegates in both party’s primaries, and share the next to the last primary date, it is insulting that so much of the candidate’s time and money is being … Continue reading

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Postscript to Powerball Picks

Postscript to Lottery Picks After I posted my advice on choosing numbers for normal lotteries that lessened the chance of sharing the prize, I turned on my news and saw the Powerball winning numbers. My advice for the unique large … Continue reading

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Thoughts on the Lottery

Topics on the Powerball Lottery I am torn between discussing: (1) how the odds are calculated; (2) how not to choose numbers; (3) how the lottery is a very regressive tax on poor people; (4) How its funding of education … Continue reading

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Physics and Star Wars

Physicists are anxious for a Star Wars film to explain some of the key physics elements that hold the story together. A few of the advances in physics could produce a few of the capabilities shown in the movie. Other … Continue reading

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Climate Mitigation Through the Market

  The largest countries at the Paris 2015 climate talks are constrained in what they can commit to, for various reasons. But if we look at what is producing the current level of carbon pollution control, it is largely the … Continue reading

Posted in Autos, Climate Change, Coal, Conservation, Electric Power, Energy Efficiency, Fossil Fuel Energy, Greenhouse Gas Emissions, Hydropower, Natural Gas, Nuclear Energy, Oil, Renewable Energy, Solar Energy, Transportation, Wind Energy | Leave a comment

Pictures of UC Irvine Trees

  UC Irvine has over 24,000 trees on the campus, and 11,000 are in the central Aldrich park. I have been taking interesting pictures of some of them, locating them in convenient areas for walks or exploration, and identifying them. … Continue reading

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Climate Change and Continued Climate Change

  This year will be the hottest recorded year. It used to be that the average world temperature was 0.7 degree C or 1.36 degree F above pre-industrial times. This year may be 1.0 degree C or 1.8 degree F … Continue reading

Posted in Climate Change, Conservation, Energy Efficiency, Fossil Fuel Energy, Renewable Energy | Leave a comment

Imported Sources of California’s Electric Power in 2014, and its CO2 Pollution

  We look here at the CO2 cleanliness or pollution of power imported into California. This is reported as two groupings as Southwest or Northwest. The numbers work out nicely as fractions. The 2014 California power output is 296,843 GWh … Continue reading

Posted in California Power Mixes, Climate Change, Electric Power, Energy Efficiency, Fossil Fuel Energy, Greenhouse Gas Emissions, Hydropower, Natural Gas, Nuclear Energy, Renewable Energy, Solar Energy, Wind Energy | Leave a comment