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SusanW

 Discussion on answer by IMSoP: Why do…

Imported from a comment discussion on langdev.stackexchange.co...
SusanW
Dec 23, 2023 18:19
@Steve can I check, how do we know that two nulls are structurally equivalent, as you suggest? (or "value equivalent", as I think I would call it - Austin, would that be a valid term for what we're referring to?) I'm thinking if NULL = NULL doesn't give true then they aren't value equivalent, and that's definitive. I'm drawing a comparison with say a simple Integer type whose equals method is overridden to always return false, so is never equal to anything.
 

 Discussion on answer by 1muflon1: Why…

Imported from a comment discussion on economics.stackexchange....
SusanW
Dec 5, 2022 20:58
@TomTom The supply infrastructure might be the dominant element which locks in their success. I remember a senior Intel person writing about their vast supplier network, and how hard that made setting up large-scale production in new places (tried to find link, but Google-bombed). Just as one point, Taiwan's semi industry consumes ~10% of their water (1m tons/wk?); generally, the chemical needs are broad, exotic, and often nasty.
 

 Discussion on question by Shade: Why …

Imported from a comment discussion on scifi.stackexchange.com/...
SusanW
Feb 5, 2021 03:35
@InvisibleTrihedron unless ... that's what oil is! Euuuugh.
 

 Discussion on answer by o.m.: How wou…

Imported from a comment discussion on politics.stackexchange.c...
SusanW
Dec 31, 2020 13:56
@Bardicer Brings to mind the three guys pouring cement to make a new bridge. "What are you doing?" One says: "we're making this road surface"; the second says: "we're making it easier to get across this river"; the third says: "we're developing the area's transport infrastructure to increase prosperity in this part of the country". :-)
 

 Discussion on answer by Raffzahn: Pro…

Imported from a comment discussion on retrocomputing.stackexch...
SusanW
Nov 6, 2020 18:47
@WillHartung those elevators seem to be the way they're heading: had them in the last two office buildings I've worked in. Main problem I found is that you start to lose the reflex that "when I get in lift, must press a button"! So you go to a different office, stand in the (traditional) elevator while it slowly dawns on you that nothing much is happening, or you sail past your floor without stopping - basically all the predictable consequences of not selecting a destination :-)
 

 Discussion on answer by nick012000: H…

Imported from a comment discussion on security.stackexchange.c...
SusanW
Jul 25, 2020 19:27
@reed I'd also note that this is only a partial answer, as it doesn't discuss retasking the international weather-control satellite grid to turn their headquarters into a block of ice! Or designing the viruses to cross the species boundary from computer to human and turn them into a zombie slave army... Anyway, sorry Nick012000, but this answer is a bit far on the Hollywood end of the spectrum!
 

 Discussion on answer by Dragongeek: I…

Imported from a comment discussion on space.stackexchange.com/...
SusanW
Jul 2, 2020 17:25
We live in a world where we are quite seriously discussing "real-life space crime", specifically in terms of petty theft. I like it... :-)
SusanW
Jul 2, 2020 17:25
"...still rely upon them being in cooperative countries" - sorry, disagree. It would still be illegal. Whether you're safe from the practicality of enforcement or not is a separate issue to fundamental legality. Sure the US would exert pressure - that's because it breaks US law. It's not a "it's not legal or illegal" thing: it's illegal according to US law. Being able to evade the practical consequences, or any claims of rightness or wrongness, do not affect the basics. Hey, listen, this has gone way beyond Space exploration! :-) Wanna raise this on "Law"?
SusanW
Jul 2, 2020 17:25
I don't think the example holds: the US doesn't assert that its drinking laws apply outside of US territory. But if they changed that so "US citizens are subject to US drinking laws no matter where", then they would. US tax law is an example, see FACTA. A UK example would be child abuse legislation, which applies to UK residents abroad as well as home.
SusanW
Jul 2, 2020 17:25
Hm. "Possession is 9/10 of the law" is just a saying, not a statement of law, and this question is about the law. The questioner asks "is it legal?" with respect to various national jurisdictions, and some jurisdictions have signed up to the articles of a treaty, and that means it's most certainly illegal in those places. "Law needs to be enforceable" - are you sure? Enforceability can be an issue for the terms of a contract between parties, but that doesn't apply here - and anyway, doesn't the second part of your answer suggest that it can be enforced quite effectively?
 

 Discussion on question by Thomas: Is …

Imported from a comment discussion on music.stackexchange.com/...
SusanW
Mar 11, 2020 19:54
@phoog We await the grant proposal for the investigation of piano-based ELF transmission with great interest! :-) Oh, and if the hammers could enable/disable (short out?) individual strings, then you've got a spread-spectrum transmitter that can send signals which can only be picked up by another piano that's playing the same piece of music!
SusanW
Mar 11, 2020 19:54
To add to @J...'s excellent comment: Schumann Resonances are a planetary electromagnetic effect predicted by Winfried Schumann, the 20th century physicist. Despite the name, this is nothing at all to do with Robert Schumann, the 19th century composer. Nothing whatever to do with music or pianos!
 

 Discussion on answer by John Doucette…

Imported from a comment discussion on ai.stackexchange.com/que...
SusanW
Mar 6, 2020 01:18
@nbro (Decimal calculus = calculation using decimals, using the word calculus in its most general sense)
 

 Discussion on question by SusanW: Nan…

Imported from a comment discussion on arduino.stackexchange.co...
SusanW
Aug 26, 2019 11:49
@juraj No, it's just the Nano and the Shield, which has nothing but ethernet
SusanW
Aug 25, 2019 14:32
I never see any activity on the MISO line: it sits at 3.36V - maybe erevid sees that as all '1's, hence the 255. The Nano's outputs are 5V, so it's all a bit exciting.
SusanW
Aug 25, 2019 14:32
@Juraj Just switched to my UIPEthernet EchoServer example, added Ethernet.linkStatus() to setup(), just after the Ethernet.begin() call (which is where the "Enc28J60Network::phyWrite ERROR:TIMEOUT !!" happens, in phyWrite). I get linkStatus=zero back, which from the enum I think means UNKNOWN (internally, I see readReg(EREVID) returns 255).
SusanW
Aug 25, 2019 10:55
@Juraj Ok, looking closely, there's an AMS1117 3.3V regulator on the shield, so Yes! Looks like it does. Just tried running it all from separate 5V supply into the Nano's 5V line (no USB connected now) - still no activity on MISO ... trying 9V into Vin, still no activity. But, ok I didn't understand why anyone would build a shield to connect to a 3.3V power line that couldn't possibly provide enough current! - turns out they didn't :-)
SusanW
Aug 25, 2019 09:36
@VE7JRO Thanks very much for your help! Just tried the muanis example, and it runs until it gets into enc28j60PhyWrite and starts to try reading from the SPI, and then loops due to no response from the shield. I can see the read being clocked on the scope, but no activity on MISO.
SusanW
Aug 24, 2019 16:16
@VE7JRO I've just hooked a 3.3V 2A supply up to the Nano's 3.3V line to give it more juice - no change. I think it's ok to just wire the power straight up to it, even though the 3.3V line is nominally an output (am I right?); I believe I'll definitely need to augment it anyway, but I'm starting to feel the shield is DOA. I wonder if running it with weak power killed it....? seems a bit feeble if it did.
SusanW
Aug 24, 2019 16:16
@VE7JRO oh I never thought of that... I've spent a whole day trying to .... :-) ok, checking now ...
SusanW
Aug 24, 2019 16:16
@VE7JRO Your suggestion seems to be backed up by this discussion: forum.arduino.cc/index.php?topic=452822.0 ... I couldn't find anything much to test: my nano's 3.3V pin is stable, but that might be because the shield isn't drawing power when it sees the supply so weak. I'm now building an independent 3.3V supply...
SusanW
Aug 24, 2019 16:16
@Juraj yes, all connected - and I get a little green light on the shield and on the hub, so I think it's all good there.
SusanW
Aug 24, 2019 16:16
@Majenko good point - and thanks for the pointer. I'd not earthed the scope probe properly, so fixed, and the SCK line looks perfectly fine now. D'oh, beginner's mistake. I'll edit it out of the question.
 

 Discussion on answer by Russell Borog…

Imported from a comment discussion on space.stackexchange.com/...
SusanW
Aug 7, 2018 16:05
@MishaR Hm, making me think. I feel we're all describing different aspects, or dimensions, of the "jumping on the moon" action... I'm not sure that thinking how one would phrase it to concisely describe an act, is a strong guide to the truth or otherwise of other statements. I'd definitely say "he's jumping on the moon", but the answer to "is he in space, yes or no?" might still be "well, yes" even though that conjures different images. If I was plummeting to Earth from lunar altitude, I would still be in space for most of the trip - though failure to mention the plummet would be odd.
SusanW
Aug 7, 2018 16:05
@mishaR Yep, that's how you'd describe it, but it's still in space. There are a lot of ways you can be in space, but very few of them involve jumping around on the moon. Failure to mention the moon thing might constitute misdirection, in a "why didn't you say so?" sort of way, but that doesn't make it incompatible with being in space. It's a bit like Jack Handey's "I want to die peacefully in my sleep like my Grandpa, not screaming and terrified like his passengers"... :-)
 

 Discussion on answer by JimmyJames: G…

Imported from a comment discussion on softwareengineering.stac...
SusanW
Apr 30, 2017 15:15
@Michael @Michael Sorry, but I agree with Jimmy here. And your point "1) - they have names" - I think fromSeconds and fromMillis etc do constitute names, which is the point I was making. I can infer the meaning from "fromSeconds()", but I can't from "new Blah(int)" without reading the source - pretty sure I don't need a book to tell me that means it's more Effective!
SusanW
Apr 27, 2017 20:15
@JimmyJames Oh sorry, I was reponding to Michael's "I also very much dislike all of the static methods" etc. Yep, static imports work nicely here. And... I like your point about where the squeeze happens... definitely true! :-)
SusanW
Apr 27, 2017 20:15
@Michael it's a pretty common idiom to use static factory methods for handy object creation. They avoid confusion because they are named for what they do, they help differentiate when arg lists wouldn't (as here), and they allow flexibility around what you return. This is item#1 in Bloch's Effective Java :-)
 

 Discussion on answer by coteyr: How d…

Imported from a comment discussion on english.stackexchange.co...
SusanW
Mar 16, 2017 05:24
@Tonny Now you draw my attention to it, it sounds weird to me too! Hmm.
SusanW
Mar 16, 2017 05:24
@Tonny "A litre of water's a pint and three-quarters". "Two and a quarter pounds of jam, weigh about a kilogram". "A metre measures three feet three: it's longer than a yard, you see." :-)
 

 Discussion on answer by CaffeineAddic…

Imported from a comment discussion on security.stackexchange.c...
SusanW
Oct 9, 2016 10:55
@DanC that's why I keep a huge cargo-loading exosuit next to my PC.
 

 Discussion on answer by WCG: How can …

Imported from a comment discussion on askubuntu.com/questions/...
SusanW
Oct 6, 2016 13:30
@heemayl Sorry, but I think answer is correct. CBC and stream ciphers work from the beginning of the data and use only the information from the key and the stream so far to encrypt the current digit/block. No need to see future parts of the stream.
 

 Discussion on question by Bob b: Is t…

Imported from a comment discussion on history.stackexchange.co...
SusanW
Sep 21, 2016 13:55
@Bobb unfounded looks right. Otherwise it contradicts the second part of the question. Interesting question, anyway, IMHO.
SusanW
Sep 21, 2016 13:55
@Bobb Ok - is this meant to say founded or unfounded? It seriously changes the nature of the question! I edited it to unfounded thinking it was vandalism, but it was you who changed it. Confused! Sorry!