Distributed Solar: The Democratizaton of Energy
Category Archives: theoretical physics
Series, symmetrized Normalized Compressed Divergences and their logit transforms
(Major update on 11th January 2019. Minor update on 16th January 2019.) On comparing things The idea of a calculating a distance between series for various purposes has received scholarly attention for quite some time. The most common application is … Continue reading
Posted in Akaike Information Criterion, bridge to somewhere, computation, content-free inference, data science, descriptive statistics, divergence measures, engineering, George Sughihara, information theoretic statistics, likelihood-free, machine learning, mathematics, model comparison, model-free forecasting, multivariate statistics, non-mechanistic modeling, non-parametric statistics, numerical algorithms, statistics, theoretical physics, thermodynamics, time series
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Global blinding, or Nature’s revenge against meteorologists who deny climate disruption
Given climate disruption due to radiative forcing from excess atmospheric CO2, which is a premise of this blog, it is only reasonable to wonder about, speculate, hypothesize, and posit that eventually the amount of this forcing and the feedbacks in … Continue reading
Posted in Accuweather, American Association for the Advancement of Science, American Meteorological Association, American Statistical Association, AMETSOC, Anthropocene, climate, climate business, climate change, climate disruption, climate economics, climate justice, dynamical systems, Eaarth, environment, evidence, forecasting, games of chance, geophysics, global blinding, global warming, Hyper Anthropocene, Kerry Emanuel, meteorological models, meteorology, National Center for Atmospheric Research, NCAR, nonlinear systems, notes, oceanic eddies, oceanography, radiative forcing, Ricky Rood, science, the right to be and act stupid, the tragedy of our present civilization, theoretical physics
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Yes, I will be marching for Science in Boston
Like many, including Eli Rabett, I will be marching for Science in April, on Earth Day. My march will be part of the Boston march. Why? Because Science has been and is my life, and it always has been, and … Continue reading
Posted in American Association for the Advancement of Science, American Meteorological Association, American Statistical Association, AMETSOC, astronomy, astrophysics, Carl Sagan, climate, Climate Lab Book, ecology, Eli Rabett, engineering, fluid dynamics, geophysics, hydrology, marine biology, meteorology, physics, population biology, Principles of Planetary Climate, reason, science, Scripps Institution of Oceanography, theoretical physics, thermodynamics, WHOI, Woods Hole Oceanographic Institution, XKCD
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Polls, Political Forecasting, and the Plight of Five Thirty Eight
On 17th October 2016 AT 7:30 p.m., Nate Silver of FiveThirtyEight.com wrote about how, as former Secretary of State Hillary Clinton’s polling numbers got better, it was more difficult for FiveThirtyEight‘s models to justify increasing her probability of winning, although … Continue reading
Posted in abstraction, American Statistical Association, anemic data, citizen science, citizenship, civilization, economics, education, forecasting, information theoretic statistics, mathematics, maths, politics, prediction markets, sociology, the right to know, theoretical physics, thermodynamics
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“All models are wrong. Some models are useful.” — George Box
(Image courtesy of the Damien Garcia.) As a statistician and quant, I’ve thought hard about that oft-cited Boxism. I’m not sure I agree. It’s not that there is such a thing as a perfect model, or correct model, whatever in … Continue reading
Posted in abstraction, American Association for the Advancement of Science, astronomy, astrophysics, mathematics, model-free forecasting, numerics, perceptions, physical materialism, physics, rationality, reason, reasonableness, science, spatial statistics, splines, statistics, the right to know, theoretical physics, time series
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“Full-depth Ocean Heat Content” reblog
This is a re-blog of an excellent post at And Then There’s Physics, titled Full-depth OHC or, expanded, “full-depth ocean heat content”. Since my holiday is now over, I thought I might briefly comment on a recent paper by Cheng … Continue reading
Posted in Anthropocene, climate, climate change, climate data, climate disruption, climate models, computation, differential equations, ensembles, environment, fluid dynamics, forecasting, geophysics, global warming, greenhouse gases, Hyper Anthropocene, Lorenz, Mathematics and Climate Research Network, model comparison, NOAA, oceanography, physics, science, statistics, theoretical physics, thermodynamics, time series
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“Number density, not mixing ratio”, from Eli
From this post: There is a cute little number called Loschmidt, the number of molecules in a cubic meter of air at 1 atm and 0° C, 2.6867774(47) x 1025 molecules/m3 … Eli Rabett provides a neat way to see … Continue reading
Posted in astrophysics, Boltzmann, carbon dioxide, chemistry, climate, climate change, climate disruption, climate education, Eli Rabett, environment, evidence, geophysics, global warming, Loschmidt, meteorology, methane, physics, Principles of Planetary Climate, science, theoretical physics, thermodynamics
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In celebration of the unification of Gravity with the other fundamental forces …
It was announced today that LIGO found definitive evidence of gravity waves last September. Excellent descriptions at IOP, including a beginners guide. No better way to celebrate than with the Canettes Blues Band, from CERN: A group of physicists who … Continue reading
