jpmattia

8 ms·

61.
by jpmattia 2y ago
My favorite so far: https://mastodon.social/@JoeUchill/112493317168967705 > Can I use gasoline to cook spaghetti faster?
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by jpmattia 3y ago
The older I get, the less I want anything sentient on my plate.
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by jpmattia 3y ago
It's an interesting idea for a site. Feedback: Searching by Topic, Title or arxiv ID would be well augmented by a DOI search, especially for the current post.
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by jpmattia 3y ago
Leaving Murray Hill? Holy moly, I'm kinda dying to know what motivated that. Full Disclosure: Bell Labs alum from the late 90s.
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by jpmattia 3y ago
> Youth really is fleeting. So is all of life. Signed, a 60 year old
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by jpmattia 3y ago
> Why does BTC need an ETF at all, doesn’t that defeat the purpose of owning one’s own wallets? Also… exchanges defeating the purpose of decentralization… Many financial institutions do not care about decentralization, but they do care
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by jpmattia 3y ago
There is no question that will truly gauge moral trustworthiness. The most pathological leaders will craft answers that sound "morally trustworthy", but after taking the role will happily take whatever pathological action they ple
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by jpmattia 3y ago
So Strnad is an interesting paper (I put the full cite as [1].) My take after skimming [1] plus references therein, plus those that cited [1]: There is a cottage industry of papers trying to replay the early work on QED. Each paper takes on
69.
by jpmattia 3y ago
> You can have vacuum fluctuations without photons. Casimir is not about fluctuations. There is an attraction between metal plates in the absence of electromagnetic radiation. And as I think it through, an even simpler example is the l
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by jpmattia 3y ago
Yes, let's see references, especially for the multiphoton processes in Compton. > The only quantisation needed in the Casimir effect is boundary-induced quantisation, that EM waves should have, right? No. You need to explain why t
71.
by jpmattia 3y ago
> There is not good evidence (that I know of at least, maybe I will learn some) that the actual EM field is quantised. I can't tell if you're pranking us, but of course there is. Without thinking too hard about experimental e
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by jpmattia 3y ago
Post should really be called "Historical emacs defaults". Most of them were products of an era where those defaults were, in fact, the best defaults. Versioned backups were lifesavers before version control systems were ubiquitous
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by jpmattia 3y ago
I still remember the time I found Car Talk (late 80s?): I was driving from Arlington MA to Lexington with the radio on NPR, mindlessly listening to some call-in talk show. A caller was asking why there was blue smoke coming out of his car&#
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by jpmattia 3y ago
One upstream factoid the article is missing: We are beginning to see sports team bypass networks like ESPN entirely. In the wake of Bally Sports breaking contracts with various teams, MLB started some distribution on its own. I doubt this w
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by jpmattia 3y ago
> To me it's just "a lot of the same stories" that are told about cuprates, and less of a "I can explain the mechanism". Fair enough, and thanks for the readout. I realized after posting I essentially demanded
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by jpmattia 3y ago
> These Cu d-d interactions right at the fermi energy give me huge hope. Feels very familiar to other superconductors (re: all the cuprates). As someone who is versed in semiconductor band structures but not superconductor band structu
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by jpmattia 3y ago
> They propose that electron tunneling between these quantum wells, which are between 3.7 and 6.5 Ångstroms apart, is the superconducting mechanism. That is a very strange explanation. As someone who has done a decent amount of solid-s
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by jpmattia 3y ago
Am I the only one who is stunned that there appears to be a climate catastrophe happening with virtually no reaction from the general population?
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by jpmattia 3y ago
A totally tangential comment on CS at Yale during that era: Yale was very nice to the local towns and allowed high school students to take classes, so in 1981 I took their intro to CS. The bulk of the course was run in APL, with a bit of pa
80.
by jpmattia 3y ago
> Speaking of terminals, Emacs can actually run in a terminal! You can start it with emacs -nw and it will happily transform your terminal into Emacs. I love how this is written, as if there wasn't a time that running emacs in the
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by jpmattia 3y ago
The resolution is not the innovation here. Where "conventional" STM collects valence or free electrons, this work is probing the electron structure, using Xray photons to kick one out from the inner orbitals.
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by jpmattia 3y ago
> Isn't this just EPR w/ X-Ray photons? From a quick read: I don't think so. There's no magnetic field, and the collected electron can be from a pair (ie both spins in one orbital) I think it is better described as
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by jpmattia 3y ago
I don't know why you're being downvoted, it's an entirely valid observation. And as I type, it's the only comment mentioning lightning as competition. Moreover, my greater sense is that the nuts and bolts of crypto is no
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by jpmattia 3y ago
Yeah, the wording in the explanation was particular suspect: > Polarized or polarizable objects are attracted to strong electric fields Polarizable objects align in an E field, they aren't attracted to the E field. I don'
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by jpmattia 3y ago
> This map (from 2015) shows sites with the most TCE groundwater contamination. But note there was more than TCE at those superfund sites.
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Every Author as First Author(arxiv.org)
59 points by jpmattia 3y ago|26 comments
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by jpmattia 3y ago
If you've ever published a paper, then you know authorship order can lead to tricky situations. The arxiv PDF has both the best and most hilarious solution to this problem I've witnessed. https://arxiv.org/pdf&#x2F
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by jpmattia 3y ago
So glad to see the return of these guys. Growing up in the 70s, they were one of the few portals to the universe of electrical engineering.
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by jpmattia 3y ago
Anyone know if this fixes slow SFTP? ie https://daniel.haxx.se/blog/2014/05/14/why-sftp-is-still-slo...
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by jpmattia 4y ago
> But onboarding—specifically, choosing a server—was too tedious for non-niche adoption. I'm not entirely sure that's a bug. Specifically, I'm curious whether it squelches non-niche conversations like: Are vaccines a nef

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