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  2. John Lennon

John Lennon

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By gregladen on December 8, 2012.
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More by this author

Last Post
October 30, 2017
This is my last post at Scienceblogs.com. In the future I will be blogging at Greg Laden's blog, located at its original home at gregladen.com. I have a feeling that Scienceblogs will not last long without me. What do you think? :) But seriously, I'll be talking about the story of the current…
Hacking Voting Machines
October 10, 2017
In every area of life, but especially in the overlapping realms of technology, science, and health, misunderstanding how things work can be widespread, and that misunderstanding can lead to problems. In the area of voting, the main problem seems to be the expenditure of great amounts of outrage and…
On that chilling law suit against the environmental groups
October 5, 2017
... which I've posted on before ... there are new developments, summarized at Inside Climate News: Invoking the Racketeer Influenced and Corrupt Organizations Act, or RICO, a federal conspiracy law devised to ensnare mobsters, the suit accuses the organizations, as well as several green campaigners…
One response to the Las Vegas Shooting
October 5, 2017
from a major non profit, click through the the X Blog to read the press release.
Watch Jeff Merkley Wipe Floor With Trump's William Wehrum
October 5, 2017
William Wehrum is a lawyer and once, apparently, worked for the EPA. Trump is trying to appoint him to be assistant administrator for air and radiation. This is a reasonably important job that concerns many aspects of the environment. Watch: https://twitter.com/SenJeffMerkley/status/…

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A reader asked me about the hyperbolic trig functions, sinh(x) and cosh(x). What are they for, and do they have an intuitive interpretation in physics? That's a pretty good question. After all, most of the time you first meet the hyperbolic trig functions in intro calculus, where their rather odd definitions are presented and then used as test beds for blindly applying newly-learned…
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"I went into a clothing store, and the lady asked me what size I was. I said, 'Actual'. I'm not to scale." -Demitri Martin When you look out at the Universe, what you can see is limited, at the most fundamental level, by the size of what you look with. This is why you can see dimmer objects at night -- when your pupils are dilated -- than you can when your pupils are constricted. Image credit:…

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