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Daniel Kleppner, Physicist Who Brought Atomic Clock Precision to GPS, Has Died

https://www.nytimes.com/2025/07/12/science/daniel-kleppner-dead.html
21•NaOH•11h ago

Comments

NaOH•11h ago
http://archive.today/n6xxF
toomuchtodo•11h ago
https://en.wikipedia.org/wiki/Daniel_Kleppner

https://physics.mit.edu/faculty/daniel-kleppner/

kwoff•7h ago
"He also helped to create an advanced physics course for M.I.T. freshmen with more than a rudimentary knowledge of the subject. He and Robert J. Kolenkow wrote a 2013 textbook for the course, “An Introduction to Mechanics.”"

I used Kleppner/Kolenkow's intro to mechanics (copyright 1973) in 1993 or so, not at MIT. Seems 2013 is referring to the 2nd edition: https://en.wikipedia.org/wiki/Daniel_Kleppner#Books Maybe the 1st edition was created for the "mechanics for masochists" MIT course.

andbberger•4h ago
"The first scientists to succeed, in 1995, were Eric Cornell, Wolfgang Ketterle and Carl Wieman at JILA (formerly known as the Joint Institute for Laboratory Astrophysics), a research institute in Colorado." incredible underhanded dig from the NYT (against the rest of the Boulder physics dept)

Let Me Pay for Firefox

https://discourse.mozilla.org/t/let-me-pay-for-firefox/141297
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Bypassing Google's big anti-adblock update

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6•LorenDB•3d ago•0 comments

Hill Space: Neural nets that do perfect arithmetic (to 10⁻¹⁶ precision)

https://hillspace.justindujardin.com/
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Reading Neuromancer for the first time in 2025

https://mbh4h.substack.com/p/neuromancer-2025-review-william-gibson
57•keiferski•2h ago•44 comments

MacPaint Art from the Mid-80s Still Looks Great Today

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26•todsacerdoti•13h ago•10 comments

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https://news.artnet.com/art-world/bayeux-tapestry-british-museum-loan-2665313
17•andsoitis•1d ago•19 comments

Hacking Coroutines into C

https://wiomoc.de/misc/posts/hacking_coroutines_into_c.html
90•jmillikin•8h ago•25 comments

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http://bannalia.blogspot.com/2025/07/maps-on-chains.html
15•signa11•2d ago•5 comments

Chrome's hidden X-Browser-Validation header reverse engineered

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Gmail AI hallucinates, distorts email contents

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11•disentanglement•2h ago•1 comments

Edward Burtynsky's monumental chronicle of the human impact on the planet

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46•pseudolus•7h ago•6 comments

Lost Chapter of Automate the Boring Stuff: Audio, Video, and Webcams in Python

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Programming Affordances That Invite Mistakes

https://thetechenabler.substack.com/p/programming-affordance-when-a-languages
31•ingve•2d ago•13 comments

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221•bookofjoe•21h ago•150 comments

ISRO successfully conducts hot tests of Gaganyaan propulsion system

https://www.thehindu.com/sci-tech/science/isro-successfully-conducts-hot-tests-of-gaganyaan-propulsion-system/article69790839.ece
19•Bluestein•1h ago•1 comments

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https://phys.org/news/2025-06-plastic-carbon-dioxide-electricity.html
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https://langfa.st/
34•eugenegusarov•16h ago•10 comments

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204•c4pt0r•1d ago•138 comments

Malware found in official gravityforms plugin indicating supply chain breach

https://patchstack.com/articles/critical-malware-found-in-gravityforms-official-plugin-site/
220•taubek•1d ago•46 comments

New Date("wtf") – How well do you know JavaScript's Date class?

https://jsdate.wtf
337•OuterVale•1d ago•199 comments

Working through 'Writing A C Compiler'

https://jollygoodsw.wordpress.com/2025/03/13/working-through-writing-a-c-compiler/
147•AlexeyBrin•21h ago•35 comments

Supreme Court's ruling practically wipes out free speech for sex writing online

https://ellsberg.substack.com/p/free-speech
591•macawfish•15h ago•779 comments