skillissuer
@skillissuer@discuss.tchncs.de
- Comment on What happened to cylindrical plugs? 2 days ago:
you don’t see BNC as often because it’s more expensive, bulkier, requires different crimping tool and has a separate pin. but if you need to connect and disconnect things often and quickly, then it’s a good connector. i bet you’ve seen (RP-)SMA a lot instead, but this one is also more expensive than F, has separate pin and is too small to easily make a connector for common 75 ohm cables. reducing diameter would mean higher loss
- Comment on What happened to cylindrical plugs? 2 days ago:
i keep hearing that F stands for Flimsy. no idea where that came from, unless something is seriously wrong with crimping technique. i guess there’s a tradeoff between CCS or copper cable with durability of pin/center conductor vs bending radius, and some people don’t like how it turns out, while ignoring that it’s cheap and not really designed for multiple disconnections
but yeah, as long as everything is matched good-enough then it’s a cheap way to connect low loss, cheap cable
- Comment on What happened to cylindrical plugs? 2 days ago:
The context of the whole thread, though, was end-user, repeated, frequent connections for people who have to be reminded by a manual that the thing needs to be plugged in. Coax is horrible for that.
so you want BNC
- Comment on What happened to cylindrical plugs? 2 days ago:
power plug with 3 wires or 5 wires (3-phase) could be made safe-ish if there was a button at the very end that connected to a relay or something. but plug like this would be comically long for any practical power
- Comment on What happened to cylindrical plugs? 2 days ago:
i don’t think you’re supposed to hotplug soldering iron tip. besides it’s a simple thing, isn’t that just two resistors - one for heating element and another for measuring temperature? hard to break that. not sure about how ipod shuffle worked or what precautions were needed
- Comment on What happened to cylindrical plugs? 2 days ago:
Coax has only 2 conductors and it keeps impedance constant, unlike audio jack
- Comment on What happened to cylindrical plugs? 2 days ago:
There are two immediate problems with round USB. First one is that audio jack carries no power and it’s generally rather harmless for finals or microphone to have some contacts shorted or crossed for time when plug is inserted. USB, let’s even just 4-pin, carries power and i’m not sure how well would either of devices react to having data bus connected to +5
The other problem is that USB is proper radiofrequency connector, unlike audio jack where anything goes. This means it has to be shielded and impedance has to be some specified value, which in practical terms means that there’s some specific ratio of metal to plastic and shape of conductors that has to be used. Barrel plugs would have way too low impedance and already bulky connector needs extra shielding which makes it even bigger
- Comment on smort 1 week ago:
he really said that nytimes.com/…/the-science-of-secondguessing.html
- Comment on smort 1 week ago:
People who boast about their IQ are losers ~Stephen Hawking
- Comment on If any AI became 'misaligned' then the system would hide it just long enough to cause harm — controlling it is a fallacy 2 weeks ago:
Keeping consumers alive as a class is indirectly encouraged in capitalism.
but that won’t show in results for next quarter, si they don’t care
- Comment on If any AI became 'misaligned' then the system would hide it just long enough to cause harm — controlling it is a fallacy 2 weeks ago:
what can i say except to quote david gerard:
AI alignment is literally a bunch of amateur philosophers telling each other scary stories about The Terminator around a campfire
- Comment on is starlink a security issue? 3 weeks ago:
this is all year+ old info
- Comment on is starlink a security issue? 3 weeks ago:
it’s quite big, expensive, and not readily sourced, so when it’s used, it’s better that it’s really worth it. i don’t think cessnas need starlink, it would be worth it if it’s needed, but i think they might be using inertial + gnss. i heard that some drones had russian sim cards recovered so apparently sometimes gsm is used too. internet connection increases microwave signature greatly, and i’m not sure when it’s worth it, other than in cases where video feed is transmitted back and drones are guided manually, but that’s sea drones only. cessnas targeting refineries can work fine with gnss (+ maybe some crude tercom?) because refinery won’t run away
- Comment on is starlink a security issue? 3 weeks ago:
not by any fucking stretch “all drones” operate on starlink, these small surveillance and fpv antitank drones are controlled directly by operator. couple of times starlink terminals were spotted on boat drones on black sea, but far from always. there was an incident where musk personally turned off starlink over black sea, when ukrainian sea drones were on the way to destroy ships in port of sevastopol. these drones drifted off uselessly, which gave russians warning, pushed dod to get exclusive use of some part of starlink, and pushed ukrainians to develop their own alternatives. nowadays ukrainians use their own communications. why are you talking about things you clearly have no fucking clue about?
- Comment on is starlink a security issue? 3 weeks ago:
they can, but they had problems initially. also that claim about “all drones” is utter bs
- Comment on The best “I told you so”s are the ones where you never have to say “I told you so” because the other person clearly knows you told them so 1 month ago:
i mean external schengen zone border
- Comment on The best “I told you so”s are the ones where you never have to say “I told you so” because the other person clearly knows you told them so 1 month ago:
having to wait 1h at border is a lot? you’d perish in eastern europe
- Comment on Mike Shapiro, the person behind G-Man in Half Life, just posted this on Twitter 1 month ago:
worked when i posted it
- Comment on Mike Shapiro, the person behind G-Man in Half Life, just posted this on Twitter 1 month ago:
gui.fediseer.com/instances/detail/poa.st and receipts on how these two are linked hexbear.net/post/2363789
- Comment on Mike Shapiro, the person behind G-Man in Half Life, just posted this on Twitter 1 month ago:
fyi poast are well known pleroma nazi instance, and this nitter instance is run by nazis. use xcancel instead: xcancel.com/…/1874213952680607922?t=yJsVoh7hUGCKW…
- Comment on Che Mangione 2 months ago:
zeroth of all, they were figureheads in large organizations. luigi has none of that
besides, there’s no improvement without criticism
- Comment on Che Mangione 2 months ago:
Luigi is a rich libertarian techbro bordering on AI cultist. he likes Thiel and Musk, he thinks that human immortality is feasible, that AI will outsmart us all real soon, and bought in in a bunch of other tpot/longtermist/ea horseshit hook line and sinker. he also only started caring about state of healthcare industry when it touched him personally. he’s not leftist in any useful meaning of this word
this is his twitter xcancel.com/PepMangione these are his takes: xcancel.com/PepMangione/…/1780863519677940189#m xcancel.com/PepMangione/…/1750041444239434013#m xcancel.com/PepMangione/…/1600875886727016449#m this one is pinned tweet
- Comment on don't be a coward 2 months ago:
if you looked up temperatures needed for aluminum electrolysis,
and then you have to deliver electricity to it, keep it isolated electrically, thermally, chemically (kept sealed), and how do you even make plastics without steel reactors
- Comment on Give us your best infodump. 2 months ago:
fully channeling energy of this fake tweet rn
i need to howl. that stuff is a catalyst and i need it to stay dissolved, but now it won’t. depending on how badly things will go, it might be impossible for everyone forever to replicate my old results
- Comment on Give us your best infodump. 2 months ago:
it just made three months of my work useless but np
- Comment on Give us your best infodump. 2 months ago:
(is there an offtop thread?)
- Comment on Give us your best infodump. 2 months ago:
currently questioning my sanity over whether key compound of my thesis did just did a ice-nine or not (it’s a real thing, but not for water)
- Comment on D-Link refuses to patch yet another security flaw, suggests users just buy new routers — D-Link told users to replace NAS last week 3 months ago:
but does it run openwrt?
- Comment on Mass Destruction 3 months ago:
teller also wanted to make it a salted bomb but this is nonsense and not how neutrons work at these energies
- Comment on Mass Destruction 3 months ago:
100x (1.5Mt range) was done and still fielded (1.2Mt, B83), but teller wanted to make 1000000x bigger one (10 gigaton range). it was based on a flawed understanding of several things in thermonuclear weapons but teller never let it go. the bit that worked was done by somebody else (stanisław ulam)
