I know some of you are in Fairfax County, Virginia. If you are, please send this around to your climate-loving local people who are presumably voting in the upcoming primary election (June 11th).
From Adam Siegel, Virginia-based energy expert and climate hawk spotter:
Fairfax County Democratic voters face — for the first time in decades — a real choice as to their nominee for Chair of the Fairfax County Board of Supervisors. It isn’t just that there are four candidates seeking our support, but that a reasonable person paying even superficial attention to the race should be able to articulate reasons to vote for (or not vote for) each of the four. This is a good situation for voters, and a reason why I have thought long and hard before coming out with a public endorsement in this race. After consideration of many factors (see discussion below), the choice has become clear to me…
Also, look at Dick Saslaw’s race. I hear he is a fossil fuel favorer and it might be nice to have him not running in the election, so when the Democrats take back the Senate, their Majority Leader is not a Carbon-symp. This is Virginia State Senate district 35, where Yasmine Taeb and Karen Elena Torrent are primary-ing Dick Saslaw. I have nothing to provide in the way of guidance for choosing between those two candidates.
How does this sound? In a two person race (among Democrats and LD’s),
(that may be statistically significant, but just barely)
Conclusion: Among these front runners, they are all about the same, among Democrats, nationally. Note that recent polls showing Biden with a huge lead are all, as far as I know, among the First Four contests.
To calculate the exact location of a star, planet, or satellite, read the appropriate chapter in this book, download the source code, data files, or binaries, as needed from the publisher, and off you go on a wild adventure that combines star gazing, mathematics, and coding.
I am especially attracted to science or technology books that contain something the reader can work with. A book about a programming language should walk the reader through developing a good example of useful code. A book about computational science should include templates for workflow in data analysis. It is rare, though, to find a book about a pure science (as opposed to technology) that does this. Celestial Calculations: A Gentle Introduction to Computational Astronomy (The MIT Press) by J. L. Lawrence is one of those pragmatic publications.
J.L. Lawrence comes from the world of technology. He is a CTO of a company that builds computer systems for satellite-launching customers including the government. So, one might imagine that he has an interest in pulling out the old slide rule and doing applied rocket science.
Consider the situation of a serious amateur astronomer. You can look at the stars and planets through a good set of binoculars, or an amateur telescope. After a while, you may want to upgrade to a telescope that can be linked to your laptop for positioning. Or you might build a star tracker to allow your camera to get a nice shot of a comet. And so on.
But eventually you may also want to get into the math of the heavens, combining that with some coding skills you can easily pick up, and figure out how to locate planets, find specific stars, track the moon’s behavior with great accuracy, and convert between all the values of time and space that happen when round objects of various sizes find themselves falling towards each other in great, seemingly infinite time, spirals. And so on.
Celestial Calculations is written for amateur astronomers who want to use accessible math combined with extensive ready to go code written manly in python, java, and visual basic.
The prose that discusses the math and astronomy is straightforward and accessible, and if you read the book just for that you will come away much better informed about the solar system and broader universe. If you do that, you will probably skip about 20% of the technical discussions and math (maybe a bit more). The math is very clear and you can work through the concepts in your head, more or less, to get the idea, and appreciate the dynamic relationships between things in space. The programming is all relegated (but with notes in the book) to a major on line archive that you can download and use on your own computer to make the calculations, and modify as you wish.
The software is developed with a Microsoft Windows user in mind. The software should run on any platform, but you may have to fiddle with paths and other environment issues if you are using a non-Windows machine.
Black Holes and Baby Universes: And Other Essays in kindle form cheap right now.
In his phenomenal bestseller A Brief History of Time, Stephen Hawking literally transformed the way we think about physics, the universe, reality itself. In these thirteen essays and one remarkable extended interview, the man widely regarded as the most brilliant theoretical physicist since Einstein returns to reveal an amazing array of possibilities for understanding our universe.
Building on his earlier work, Hawking discusses imaginary time, how black holes can give birth to baby universes, and scientists’ efforts to find a complete unified theory that would predict everything in the universe. With his characteristic mastery of language, his sense of humor and commitment to plain speaking, Stephen Hawking invites us to know him better—and to share his passion for the voyage of intellect and imagination that has opened new ways to understanding the very nature of the cosmos.
Though he is one of Key West’s most skilled fishing captains, Breeze Albury barely ekes out a living on the meager earnings of his trade. Meanwhile, Cuban and Colombian drug smugglers thrive all around—and they have their sights set on Albury and his fishing boat.
After the smugglers cut his three hundred trap lines and crush his livelihood, Albury is forced to run drugs to survive. But when he gets busted by the crooked chief of police and becomes a target of the drug machine’s brutal hit men, Albury becomes a vigilante on the seas of Florida, unleashing a fiery and relentless vengeance on the most dangerous criminals south of Miami.
Along with Powder Burn and A Death in China, this is one of the early suspense thrillers written by Carl Hiaasen and Bill Montalbano, a writing team praised for their “fine flair for characters and settings” (Library Journal). Perfect for fans of the Doc Ford novels by Randy Wayne White, Trap Line is an action-packed preview of Hiaasen’s stellar Florida-set crime novels including Sick Puppy, Tourist Season, and Razor Girl.
I’m talking about LibreOffice or OpenOffice, but the concept applies to any office suite. Specifically, we are talking here about the behvioar of the “Open Recent Documents” function under the “File” menu on the typical Office style application. This menu item shows you the most recent several documents you’ve had open, so you can re-open one right away. Continue reading A Smarter Open Recent Files Function in Office→
A computer program is like a memo. Often, a vague memo.
You are the boss. You want a pile of files to be put away. You could do it yourself, but instead you instruct someone else to do it. There are a lot of them and they are all mixed up. So you write a memo to an employee that says “put the files away” and sis-bam-boom you’re all set.