Distributed Solar: The Democratizaton of Energy
Blogroll
- Nadler Strategy, LLC, on sustainability Thinking about business, efficient and effective management, and business value
- Simon Wood's must-read paper on dynamic modeling of complex systems I highlighted Professor Wood’s paper in https://hypergeometric.wordpress.com/2014/12/26/struggling-with-problems-already-attacked/
- Pat's blog While it is described as “The mathematical (and other) thoughts of a (now retired) math teacher”, this is false humility, as it chronicles the present and past life and times of mathematicians in their context. Recommended.
- Bob Altemeyer on authoritarianism (via Dan Satterfield) The science behind the GOP civil war
- South Shore Recycling Cooperative Materials management, technical assistance and networking, town advocacy, public outreach
- The Keeling Curve: its history History of the Keeling Curve and Charles David Keeling
- Quotes by Nikola Tesla Quotes by Nikola Tesla, including some of others he greatly liked.
- Earth Family Beta MIchael Osborne’s blog on Science and the like
- Earth Family Alpha Michael Osborne’s blog (former Executive at Austin Energy, now Chairman of the Electric Utility Commission for Austin, Texas)
- Dominic Cummings blog Chief advisor to the PM, United Kingdom
- Busting Myths About Heat Pumps Heat pumps are perhaps the most efficient heating and cooling systems available. Recent literature distributed by utilities hawking natural gas and other sources use performance figures from heat pumps as they were available 15 years ago. See today’s.
- Subsidies for wind and solar versus subsidies for fossil fuels
- What If
- Los Alamos Center for Bayesian Methods
- "Talking Politics" podcast David Runciman, Helen Thompson
- Flettner Rotor Bruce Yeany introduces the Flettner Rotor and related science
- Leadership lessons from Lao Tzu
- Darren Wilkinson's introduction to ABC Darren Wilkinson’s introduction to approximate Bayesian computation (“ABC”). See also his post about summary statistics for ABC https://darrenjw.wordpress.com/2013/09/01/summary-stats-for-abc/
- Leverhulme Centre for Climate Change Mitigation
- American Association for the Advancement of Science (AAAS)
- Fear and Loathing in Data Science Cory Lesmeister’s savage journey to the heart of Big Data
- Giant vertical monopolies for energy have stopped making sense
- Logistic curves in market disruption From DollarsPerBBL, about logistic or S-curves as models of product take-up rather than exponentials, with notes on EVs
- All about models
- Musings on Quantitative Paleoecology Quantitative methods and palaeoenvironments.
- Harvard's Project Implicit
- Brian McGill's Dynamic Ecology blog Quantitative biology with pithy insights regarding applications of statistical methods
- SASB Sustainability Accounting Standards Board
- Hermann Scheer Hermann Scheer was a visionary, a major guy, who thought deep thoughts about energy, and its implications for humanity’s relationship with physical reality
- Mike Bloomberg, 2020 He can get progress on climate done, has the means and experts to counter the Trump and Republican digital disinformation machine, and has the experience, knowledge, and depth of experience to achieve and unify.
- The Mermaid's Tale A conversation about biological complexity and evolution, and the societal aspects of science
- AP Statistics: Sampling, by Michael Porinchak Twin City Schools
- Ives and Dakos techniques for regime changes in series
- Beautiful Weeds of New York City
- London Review of Books
- Mrooijer's Numbers R 4Us
- distributed solar and matching location to need
- Karl Broman
- Peter Congdon's Bayesian statistical modeling Peter Congdon’s collection of links pertaining to his several books on Bayesian modeling
- WEAPONS OF MATH DESTRUCTION Cathy O’Neil’s WEAPONS OF MATH DESTRUCTION,
- James' Empty Blog
- NCAR AtmosNews
- "Perpetual Ocean" from NASA GSFC
- OOI Data Nuggets OOI Ocean Data Lab: The Data Nuggets
- Professor David Draper
- WEAPONS OF MATH DESTRUCTION, reviews Reviews of Cathy O’Neil’s new book
- Team Andrew Weinberg Walking September 8th for the Jimmy Fund!
- Gabriel's staircase
- GeoEnergy Math Prof Paul Pukite’s Web site devoted to energy derived from geological and geophysical processes and categorized according to its originating source.
- Higgs from AIR describing NAO and EA Stephanie Higgs from AIR Worldwide gives a nice description of NAO and EA in the context of discussing “The Geographic Impact of Climate Signals on European Winter Storms”
climate change
- Isaac Held's blog In the spirit of Ray Pierrehumbert’s “big ideas come from small models” in his textbook, PRINCIPLES OF PLANETARY CLIMATE, Dr Held presents quantitative essays regarding one feature or another of the Earth’s climate and weather system.
- Steve Easterbrook's excellent climate blog: See his "The Internet: Saving Civilization or Trashing the Planet?" for example Heavy on data and computation, Easterbrook is a CS prof at UToronto, but is clearly familiar with climate science. I like his “The Internet: Saving Civilization or Trashing the Planet” very much.
- The great Michael Osborne's latest opinions Michael Osborne is a genius operative and champion of solar energy. I have learned never to disregard ANYTHING he says. He is mentor of Karl Ragabo, and the genius instigator of the Texas renewable energy miracle.
- The Scientific Case for Modern Human-caused Global Warming
- HotWhopper: It's excellent. Global warming and climate change. Eavesdropping on the deniosphere, its weird pseudo-science and crazy conspiracy whoppers.
- Documenting the Climate Deniarati at work
- The HUMAN-caused greenhouse effect, in under 5 minutes, by Bill Nye
- Wally Broecker on climate realism
- Climate Change Denying Organizations
- "Betting strategies on fluctuations in the transient response of greenhouse warming" By Risbey, Lewandowsky, Hunter, Monselesan: Betting against climate change on durations of 15+ years is no longer a rational proposition.
- History of discovering Global Warming From the American Institute of Physics.
- Andy Zucker's "Climate Change and Psychology"
- Simple box models and climate forcing IMO one of Tamino’s best posts illustrating climate forcing using simple box models
- Rabett Run Incisive analysis of climate science versus deliberate distraction
- "Climate science is setttled enough"
- Spectra Energy exposed
- Mrooijer's Global Temperature Explorer
- weather blocking patterns
- Climate at a glance Current state of the climate, from NOAA
- Professor Robert Strom's compendium of resources on climate change Truly excellent
- AIP's history of global warming science: impacts The American Institute of Physics has a fine history of the science of climate change. This link summarizes the history of impacts of climate change.
- Jacobson WWS literature index
- SOLAR PRODUCTION at Westwood Statistical Studios Generation charts for our home in Westwood, MA
- The Keeling Curve The first, and one of the best programs for creating a spatially significant long term time series of atmospheric concentrations of CO2. Started amongst great obstacles by one, smart determined guy, Charles David Keeling.
- Anti—Anti-#ClimateEmergency Whether to declare a climate emergency is debatable. But some critics have gone way overboard.
- Sea Change Boston
- “The discovery of global warming'' (American Institute of Physics)
- RealClimate
- `The unchained goddess' 1958 Bell Telephone Science Hour broadcast regarding, among other things, climate change.
- Ice and Snow
- Climate impacts on retail and supply chains
- Ray Pierrehumbert's site related to "Principles of Planetary Climate" THE book on climate science
- Sir David King David King’s perspective on climate, and the next thousands of years for humanity
- Bloomberg interactive graph on “What's warming the world''
- Ricky Rood's “What would happen to climate if we (suddenly) stopped emitting GHGs today?
- Social Cost of Carbon
- "When Did Global Warming Stop" Doc Snow’s treatment of the denier claim that there’s been no warming for the most recent N years. (See http://hubpages.com/@doc-snow for more on him.)
- The Sunlight Economy
- "Warming Slowdown?" (part 1 of 2) The idea of a global warming slowdown or hiatus is critically examined, emphasizing the literature, the datasets, and means and methods for telling such. In two parts.
- The Green Plate Effect Eli Rabett’s “The Green Plate Effect”
- Skeptical Science
- Tell Utilities Solar Won't Be Killed Barry Goldwater, Jr’s campaign to push for solar expansion against monopolistic utilities, as a Republican
- All Models Are Wrong Dr Tamsin Edwards blog about uncertainty in science, and climate science
- Tuft's Professor Kenneth Lang on the physical chemistry of the Greenhouse Effect
- World Weather Attribution
- On Thomas Edison and Solar Electric Power
- Non-linear feedbacks in climate (discussion of Bloch-Johnson, Pierrehumbert, Abbot paper) Discussion of http://onlinelibrary.wiley.com/wol1/doi/10.1002/2015GL064240/abstract
- CLIMATE ADAM Previously from the Science news staff at the podcast of Nature (“Nature Podcast”), the journal, now on YouTube, encouraging climate action through climate comedy.
- "A field guide to the climate clowns"
- Jacobson WWS literature index
Archives
Jan Galkowski
Category Archives: chance
David Spiegelhalter on `how to spot a dodgy statistic’
In this political season, it’s useful to brush up on rhetorical skills, particularly ones involving numbers and statistics, or what John Allen Paulos called numeracy. Professor David Spiegelhalter has written a guide to some of these tricks. Read the whole … Continue reading
Posted in abstraction, anemic data, Bayes, Bayesian, chance, citizenship, civilization, corruption, Daniel Kahneman, disingenuity, Donald Trump, education, games of chance, ignorance, maths, moral leadership, obfuscating data, open data, perceptions, politics, rationality, reason, reasonableness, rhetoric, risk, sampling, science, sociology, statistics, the right to know
Leave a comment
Climate Denial Fails Pepsi Challenge
Originally posted on Climate Denial Crock of the Week:
Stephen Lewandowsky specializes in conducting research that pulls back the curtain climate denial psychology. He’s done it again. Washington Post: Researchers have designed an inventive test suggesting that the arguments commonly used…
Posted in American Association for the Advancement of Science, American Statistical Association, card draws, card games, chance, climate, climate change, climate data, climate education, confirmation bias, data science, denial, disingenuity, education, false advertising, fear uncertainty and doubt, fossil fuels, games of chance, geophysics, global warming, ignorance, mathematics, mathematics education, maths, obfuscating data, rationality, reasonableness, risk, science, science education, sociology, the right to know
Leave a comment
“Lucky d20” (by Tamino, with my reblogging comments)
Originally posted on Open Mind:
What with talk of killer heat waves, droughts, floods, etc. etc., this blog tends to get pretty serious. When it does, we don’t deal with happy prospects, but with the danger of worldwide catastrophe. But…
high dimension Metropolis-Hastings algorithms
If attempting to simulate from a multivariate standard normal distribution in a large dimension, when starting from the mode of the target, i.e., its mean γ, leaving the mode γis extremely unlikely, given the huge drop between the value of the density at the mode γ and at likely realisations Continue reading
Posted in Bayes, Bayesian, Bayesian inversion, boosting, chance, Christian Robert, computation, ensembles, Gibbs Sampling, James Spall, Jerome Friedman, Markov Chain Monte Carlo, mathematics, maths, MCMC, Monte Carlo Statistical Methods, multivariate statistics, numerical software, numerics, optimization, reasonableness, Robert Schapire, SPSA, state-space models, statistics, stochastic algorithms, stochastic search, stochastics, Yoav Freund
Leave a comment
After the Decade of Dithering, the Deadly Twenties
In a recent post, after reviewing the extreme Arctic warming event of late 2015, Professor John Baez quotes an earlier interview with Dr Gregory Benford, who is arguing for a geoengineering effort to restore the frozen Arctic. I do not … Continue reading
Posted in adaptation, AMOC, Arctic, chance, changepoint detection, climate, climate change, climate disruption, critical slowing down, ecology, engineering, geoengineering, global warming, greenhouse gases, Hyper Anthropocene, ignorance, James Hansen, MIchael Mann, mitigation, oceanography, physics, politics, rationality, reasonableness, regime shifts, science, science education, state-space models, statistics, the right to know, thermohaline circulation, time series
Leave a comment
climate impacts upon corporate supply chains
http://www.pwc.com/gx/en/services/advisory/consulting/risk/resilience/publications/business-not-as-usual.html https://www.aig.com/Chartis/internet/US/en/TheVulnerabilityofGlobalSupplyChains_tcm3171-663222.pdf http://phys.org/news/2014-02-quantifying-global-chain-due-climate.html http://www.greenbiz.com/blog/2014/06/27/address-climate-risks-supply-chain
Posted in adaptation, Anthropocene, chance, civilization, climate change, climate disruption, climate justice, compassion, COP21, corporate litigation on damage from fossil fuel emissions, corporate supply chains, economics, evidence, forecasting, games of chance, global warming, Hyper Anthropocene, investing, meteorology, optimization, planning, risk, Sankey diagram, science, sustainability
Leave a comment
What the future of energy everywhere looks like
What will the energy landscape look like after utility companies are either dead, dying, or revert to a tiny portion of their territory? Silicon Valley CCE Partnership gives us all a clue. It’s been described in the San Francisco Chronicle, … Continue reading
Posted in adaptation, Anthropocene, capricious gods, chance, citizenship, civilization, clean disruption, conservation, consumption, decentralized electric power generation, decentralized energy, demand-side solutions, destructive economic development, dynamical systems, economics, efficiency, energy, energy reduction, energy utilities, engineering, environment, ethics, forecasting, fossil fuel divestment, geophysics, global warming, Hyper Anthropocene, investment in wind and solar energy, living shorelines, mesh models, meteorology, microgrids, mitigation, obfuscating data, oceanography, physical materialism, physics, pipelines, planning, politics, prediction, probabilistic programming, public utility commissions, PUCs, quantum, reasonableness, reproducible research, risk, Sankey diagram, science, sea level rise, selfishness, solar energy, solar power, SolarPV.tv, Spaceship Earth, statistics, stochastic algorithms, stochastics, Svante Arrhenius, taxes, temporal myopia, the right to know, the value of financial assets, transparency, UU Humanists, WHOI, wind energy, wind power, zero carbon
Leave a comment
Irrelevant power utilities
Irrelevant. Power utilities and fossil fuel companies are the walking dead, because they simply cannot compete in a free market with solar installations and locally installed and used wind, even without subsidies. And, they are trying to use regulations and … Continue reading
Posted in bridge to nowhere, chance, clean disruption, consumption, decentralized electric power generation, decentralized energy, demand-side solutions, destructive economic development, economics, efficiency, energy, energy reduction, energy utilities, ignorance, investment in wind and solar energy, mathematics, microgrids, optimization, physics, planning, public utility commissions, PUCs, rationality, reasonableness, risk, selfishness, solar power, SolarPV.tv, Spaceship Earth, sustainability, Tea Party, the right to know, the value of financial assets, Tony Seba, wind energy, wind power, zero carbon
1 Comment
How nice it is that Nature and probability bend to developers whims!
As I have mentioned before, it’s so nice that Nature and probability bend to the whims of property developers and their Town Fathers, with the willing participation of the Federal Emergency Management Agency (FEMA). If you had property at risk … Continue reading
Posted in capricious gods, chance, citizenship, climate data, conservation, denial, ecology, engineering, environment, ethics, games of chance, ignorance, living shorelines, mathematics, meteorology, obfuscating data, planning, politics, precipitation, prediction, probability, rationality, reasonableness, risk, spatial statistics, University Station, Westwood
1 Comment
“Too late to prevent climate change: Here’s how we adapt” (Alice Bows-Larkin)
Here’s how we adapt.
Posted in adaptation, Anthropocene, astrophysics, bridge to nowhere, capricious gods, carbon dioxide, chance, citizenship, civilization, climate, climate change, climate disruption, climate education, ecology, economics, environment, ethics, forecasting, fossil fuels, games of chance, geophysics, global warming, Hyper Anthropocene, ignorance, mathematics, maths, meteorology, mitigation, oceanography, physics, planning, prediction, probability, rationality, reasonableness, risk, science, statistics, sustainability, zero carbon
Leave a comment
Questions About El Nino Answered – Dan’s Wild Wild Science Journal – AGU Blogosphere
Source: Questions About El Nino Answered – Dan’s Wild Wild Science Journal – AGU Blogosphere
“Allocating a 2° C cumulative carbon budget to countries”: Gignac and Matthews
Abstract Recent estimates of the global carbon budget, or allowable cumulative CO2 emissions consistent with a given level of climate warming, have the potential to inform climate mitigation policy discussions aimed at maintaining global temperatures below 2° C. This raises … Continue reading
Posted in adaptation, Anthropocene, Boston Ethical Society, bridge to nowhere, carbon dioxide, Carbon Tax, chance, chemistry, citizen science, citizenship, civilization, clean disruption, climate, climate change, climate disruption, climate education, climate justice, compassion, conservation, consumption, decentralized energy, demand-side solutions, destructive economic development, ecology, education, energy, energy reduction, environment, ethics, forecasting, fossil fuel divestment, fossil fuels, geophysics, global warming, humanism, Hyper Anthropocene, ignorance, investment in wind and solar energy, IPCC, meteorology, mitigation, open source scientific software, physical materialism, physics, population biology, prediction, rationality, reasonableness, risk, science, science education, scientific publishing, sociology, solar power, sustainability, temporal myopia, the right to know, time series, UNFCCC, UU Humanists, wind power
Leave a comment
Hansen et al.
Originally posted on Open Mind:
A new paper by Hansen et al., Ice melt, sea level rise and superstorms: evidence from paleoclimate data, climate modeling, and modern observations that 2 °C global warming is highly dangerous is currently under review…
Posted in adaptation, Antarctica, Anthropocene, Arctic, astrophysics, bifurcations, bridge to nowhere, carbon dioxide, carbon dioxide capture, Cauchy distribution, chance, civilization, climate, climate change, climate disruption, climate zombies, COP21, denial, differential equations, dynamical systems, ecology, economics, environment, ethics, floods, forecasting, games of chance, geophysics, global warming, Hyper Anthropocene, IPCC, James Hansen, mathematics, maths, meteorology, nor'easters, oceanography, physics, politics, probability, rationality, reasonableness, science, sea level rise, statistics, Student t distribution, Tamino, temporal myopia, the right to know, transparency, UNFCCC, zero carbon
Leave a comment
CO2 experiment: fooling with Earth
Professor Richard D Schwartz wrote, in 2012, a nice article succinctly summarizing the scientific basis for climate change and global warming. Called “An astrophysicist looks at global warming”, he pithily summarized: “Greenhouse gas” warming occurs because the collisional de-excitation time … Continue reading
Posted in Anthropocene, astrophysics, bifurcations, bridge to nowhere, carbon dioxide, chance, citizenship, civilization, climate, climate change, climate disruption, climate education, dynamical systems, ecology, environment, forecasting, fossil fuels, games of chance, geophysics, global warming, ignorance, mathematics, mathematics education, maths, meteorology, oceanography, physics, Principles of Planetary Climate, rationality, Ray Pierrehumbert, reasonableness, science, science education, temporal myopia, the right to know
Leave a comment
Welcome to the Hyper-Anthropocene
The anticipated paper by J. Hansen, M. Sato, P. Hearty, R. Ruedy, M. Kelley, V. Masson-Delmotte, G. Russell, G. Tselioudis, J. Cao, E. Rignot, I. Velicogna, E. Kandiano, K. von Schuckmann, P. Kharecha, A. N. Legrande, M. Bauer, and K.-W. … Continue reading
Posted in adaptation, Antarctica, Anthropocene, Arctic, astrophysics, bifurcations, Boston, carbon dioxide, Carbon Tax, Cauchy distribution, chance, citizenship, civilization, climate, climate change, climate disruption, dynamical systems, ecology, economics, engineering, environment, exponential growth, finance, floods, forecasting, games of chance, geophysics, global warming, Hyper Anthropocene, ignorance, investing, IPCC, living shorelines, meteorology, oceanography, physics, Principles of Planetary Climate, rationality, Ray Pierrehumbert, reasonableness, risk, science, science education, sea level rise, seawalls, temporal myopia, the right to know
2 Comments
“Why Using El Nino to Forecast the Winter is Risky” – Dan’s Wild Wild Science Journal
Why Using El Nino to Forecast the Winter is Risky – Dan's Wild Wild Science Journal – AGU Blogosphere.
Links explaining climate change Kevin Jones liked
Kevin Jones asked me if I could put the links in a Comment on a post I made at Google+ in a collection or something for reference. I am therefore repeating the Comment with these details below. No one simple … Continue reading
Posted in Anthropocene, astrophysics, bifurcations, biology, bridge to nowhere, carbon dioxide, chance, citizen science, citizenship, civilization, clean disruption, climate, climate change, climate disruption, climate education, climate models, climate zombies, conservation, consumption, decentralized electric power generation, decentralized energy, demand-side solutions, dynamical systems, ecology, economics, efficiency, energy, energy reduction, environment, exponential growth, forecasting, fossil fuel divestment, fossil fuels, geophysics, global warming, history, investing, investment in wind and solar energy, IPCC, living shorelines, mass extinctions, mass transit, mathematics, maths, meteorology, methane, microgrids, model comparison, NASA, natural gas, NCAR, NOAA, oceanography, physics, politics, population biology, Principles of Planetary Climate, rationality, Ray Pierrehumbert, reasonableness, science, science education, Scripps Institution of Oceanography, sea level rise, sociology, solar power, statistics, temporal myopia, the right to know, Tony Seba, WHOI, wind power, zero carbon
Leave a comment
federal energy subsidies: your tax dollars at work
Don’t even begin to talk about how “favored” renewables are, or how much people need taxes cut until something is done to address this: (Hat tip to Paul Lauenstein of the Sustainable Sharon Coalition for the graphic.)
Posted in bridge to nowhere, carbon dioxide, chance, citizenship, civilization, clean disruption, climate, climate change, climate disruption, climate education, consumption, decentralized electric power generation, decentralized energy, demand-side solutions, denial, economics, education, efficiency, energy, energy reduction, environment, fossil fuel divestment, fossil fuels, global warming, investment in wind and solar energy, methane, natural gas, politics, rationality, reasonableness, solar power, statistics, sustainability, taxes, wind power, zero carbon
Leave a comment
Destroying the Most Persistent Scientific Myth In America – Dan’s Wild Wild Science Journal – AGU Blogosphere
Destroying the Most Persistent Scientific Myth In America – Dan's Wild Wild Science Journal – AGU Blogosphere.
Posted in Bayesian, biology, carbon dioxide, chance, citizen science, climate, climate change, climate disruption, climate education, denial, ecology, education, ensembles, environment, forecasting, geophysics, global warming, hiatus, history, IPCC, meteorology, NCAR, NOAA, obfuscating data, physics, probability, rationality, reasonableness, science, science education, spatial statistics, statistics, temporal myopia, time series
Leave a comment
“NOAA temperature record updates and the ‘hiatus’” (from Gavin at REALCLIMATE)
NOAA temperature record updates and the ‘hiatus’. No doubt there’ll be, as Dr Schmidt says, a howl of protests that the data are “being manipulated”. There’s more discussion by Professor Mann. But, more to the point, it looks like we’re … Continue reading
Posted in chance, citizen science, climate, climate change, climate disruption, climate education, climate models, diffusion processes, dynamical systems, energy, ensembles, forecasting, geophysics, global warming, hiatus, maths, meteorology, model comparison, NASA, NCAR, NOAA, oceanography, physics, rationality, spatial statistics, statistics, stochastics, temporal myopia, time series
2 Comments
“Feedback temperature dependence determines the risk of high warming”
Jonah Bloch-Johnson, Ray Pierrehumbert, and Dorian Abbot have a new paper out in Geophysical Research Letters which is pretty exciting, at least for me, having to do with both climate and dynamical systems. They are far from the only ones … Continue reading
Posted in bifurcations, Cauchy distribution, chance, climate, climate change, climate disruption, climate education, differential equations, dynamical systems, ecology, environment, forecasting, geophysics, global warming, mathematics, maths, meteorology, physics, Principles of Planetary Climate, rationality, Ray Pierrehumbert, science
Leave a comment
A promise forward …
I’ve made a commitment at Google Plus to detail the implications of underestimated rainfall in terms of precipitation risk. I’m planning to tie this up with my informal work on the Town of Sharon’s water supply, in Sharon, MA. Update, … Continue reading
“Response” (to “…I would be interested to see how one can prove from such varying data that the warming has accelerated over time”), by Tamino
Originally posted on Open Mind:
Some comment replies require more than just a few brief lines. Richard Mallett | May 19, 2015 at 4:28 pm | I see that somebody has been posting replies in italics and within square brackets…
Posted in anemic data, Anthropocene, carbon dioxide, chance, climate, climate change, climate disruption, climate education, denial, ecology, education, forecasting, geophysics, global warming, maths, obfuscating data, open data, physics, politics, rationality, science, science education, sea level rise, statistics, sustainability, time series
1 Comment
George Carlin on religion; Ricky Gervais on the Bible
Yeah. Ogden and Sleep, “Explosive eruption of coal and basalt and the end-Permian mass extinction“.
Stone STOCHASTICITY Project
(Click on image for a larger one.) See the write-up for details.