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supersquirrel@sopuli.xyzOPto
Ukraine@sopuli.xyz•Italy Proposes Donating Used Fishing Nets to Ukraine for Protection Against Drones
4·6 hours agoRoads enclosed by miles of fishing nets are one of the more iconic images of the Ukraine War. It is a frequently used tactic and what is notable here is setting up an industrial scale donation mechanism for Ukraine, this isn’t a one time donation it is a structural commitment to providing the huge amounts of netting required for this strategy (just think at a basic level every road you cover you need 3 times the surface area of the road for the two sides and top of the netting tunnel).
supersquirrel@sopuli.xyzOPto
Ukraine@sopuli.xyz•Ukraine’s Drones Hunt Down 40+ Russian Air Defense Systems in a Single Month
1·7 hours agoHow fast do you think they can update and print “Air Defense For Idiots” books though?
Presumably they are going to have these air defenses actually being used by somebody and not just sitting in a warehouse as a curious artifact no one understands.
supersquirrel@sopuli.xyzOPto
Ukraine@sopuli.xyz•Ukraine Quietly Adds One of the Most Powerful Artillery Guns Ever Built to Its Arsenal
2·7 hours agothere are also shaheds with similar size of warhead
You can’t just compare the warhead size, the kinetic energy of an artillery shell cannot be ignored, an airplane by design of being a flying thing cannot achieve that same degree of energy in a dive.
It is a difference between a brick being dropped on something from a story up and a brick hurtling from high out of the sky in a ballistic trajectory at the same thing.
Probably the best analogy is that the force applied to it becomes so great that the liner effectively becomes flexible like plasticine to the explosive, forming a long, stretched shape akin to a long spike or lance, with a thinner tip, and becoming progressively wider toward the rear end. This jet moves incredibly quickly, but has an uneven speed along its length, with the tip moving the fastest (in modern examples, it can travel in the order of 8-10 km/s or more)
[Artillery shells can easily approach 1km/s at impact so the velocity of the shell is not trivial to a HEAT mechanism, they are within the same order of magnitude of velocity thus the velocity of the shell is DEFINITELY relevant not just explosive yield of the munition in question]
https://hypertextbook.com/facts/2003/GabrielaBis.shtml
Another unhelpful factor which has muddied the waters around the true nature of HEAT jets is that in English-speaking nomenclature, these weapons have often been categorised as ‘Chemical Energy’ (CE) weapons, in contrast to Kinetic Energy (KE) weapons. This distinction is not a particularly helpful one, nor is it particularly accurate.
For HEAT rounds it holds true only insofar as the initial energy imparted onto the liner is chemical energy, however the actual armour defeat mechanism is through the kinetic energy of a solid penetrator.
Yet the exact same is true of traditional KE weapons, such as armour-piercing fin-stabilised discarding sabot (APFSDS) rounds; the main difference being that APFSDS rounds have chemical energy imparted onto them while the penetrator is still inside the barrel, while HEAT rounds impart chemical energy onto the penetrator in the moment of the warhead’s initiation. In both cases, chemical energy is being converted to kinetic energy, yet by a quirk of convention, HEAT warheads have retained the ‘CE’ label.
supersquirrel@sopuli.xyzOPto
Ukraine@sopuli.xyz•Ukraine Quietly Adds One of the Most Powerful Artillery Guns Ever Built to Its Arsenal
2·8 hours agoDo you understand how horrifying the phrase “2x as destructive as a 155” is?
An 155mm shell landing close to you is an already apocalyptic experience, especially if more than one lands near you.
Yes I would definitely take 155mm artillery over this heavier stuff for the reasons you brought up, but there is a nonlinear anvil drop effect going on here where the only thing that can really do what a 203mm howitzer can do over and over again are glide bombs dropped from fighter-bombers.
We are talking a serious amount of force here, we can’t really capture it in words.
I don’t envy ukrainian logisticans either even if pion fires the same ammunition
If it wasn’t for exoskeletons I would say artillery this large is a deadend because of the logistics challenges, but yeah once the shells become too big for a single person to realistically move around logistics must become so much more of a nightmare especially when mud comes into the equation. Worst comes to worst you can have a human move a 155mm artillery shell across a space (although this is really where the advantage of 105mm artillery comes in), you cannot make that same assumption with a 203mm shell or even a 170mm shell like on the NK Koksans.
This is why it frustrates me that the L119 doesn’t get more attention in Ukraine because it looks boring and isn’t futuristic like drones, an artillery crew is going to be able to get a L119 into position in muddy conditions and supply it with an arbitrary amount of ammunition FAR before heavier machinery and trucks will be able to get into the area and establish a working foothold. A humvee can go basically anywhere and it can tow an L119 there.
Can you imagine how much more exhausting it would be dragging a fucking D30 into place over muddy shitty conditions vs. an L119 bopping along behind a humvee? If you compare the two weapon systems on paper you completely miss how much more beat and worn down the D30 crew is going to be before they even get to the fighting part.
This is a dynamic that is maximally easy to miss as an armchair observer.
supersquirrel@sopuli.xyzOPto
Ukraine@sopuli.xyz•Russia Targets Kharkiv With Rocket-Powered Drones for the First Time
6·6 hours agoThere is no relevant distinction to make anywhere in one time use systems, which is another way of stating that the belief people have that drones will replace all larger aircraft and make them obsolete aggressively ignores that larger aircraft already frequently carry much more agile, cheap and decisive counters to smaller drones, they are called missiles.
Another way of stating the above truth is that many of the “drone” interceptors Ukraine has fielded to great success could just be as easily be conceptualized as small, affordable electric prop powered guided missiles as they can be conceptualized as drones. Similarly one could conceptualize a fiber optic FPV drone as an evolution of TOW missiles into a more flexible, affordable complimentary form.
The idea that missiles are inherently more expensive than larger drones they are meant to neutralize is also a major thinking error caused by misunderstanding the ways in which the US is dysfunctional and also the basic doctrine the US Military follows. A smaller more limited missile will always be cheaper to produce than a larger more complex flying bomb, the fact that the world has temporarily become delusional about this is going to blow back in the faces of people very violently who confidently believe incorrect things about war because they understand drones and computers…
The only real meaningful distinction that can be made between most missiles and most drones is that most smaller missiles are employed to hit moving targets whereas most long range flying bombs like shaheds are optimized for dispersed static targets. That isn’t a hard distinction of course though (tiny fpv drones are a major exception here) so I just usually resort to calling them all flying bombs. A tomahawk is VERY different than a shahed, but they both fall under the category of “Flying Bomb” to me.
supersquirrel@sopuli.xyzOPto
CanadaPolitics@lemmy.ca•How Canada's double standards on Iran put the world at risk
3·11 hours agoThis article is about Canadian leaders and what they say, that is why X is referenced.
Social media posts are how politicians state their intentions?
This article is not overblown, it is the same criticism that can be levelled at many countries it is just Carney made a really good speech arguing not to do this shit not too long ago so yeah… the international community is going to comment on the hypocrisy.
Where did I or this article claim ALL Canadians think this? We are talking about your leaders.
supersquirrel@sopuli.xyzOPto
CanadaPolitics@lemmy.ca•How Canada's double standards on Iran put the world at risk
3·12 hours agoThe point is Canada fell in line with supporting the war with almost no resistance or serious reflection over whether it is in Canada’s best interests not that Canada started the Iran War? That was clearly Israel and the US?
supersquirrel@sopuli.xyzOPto
Technology@lemmy.zip•The first quantum computer to break encryption is now shockingly closeEnglish
1·12 hours agoI think it is pretty widely accepted in cybersecurity that traditional encryption methods are vulnerable to quantum computers?
This isn’t really a “cold fusion” thing.
The entire desire to build a Quantum Computer is related to solving problems a traditional computer would take ages to do. There has been meaningful steady progress towards it too, though no one seriously expects results tomorrow.
supersquirrel@sopuli.xyzto
Technology@lemmy.zip•Group Pushing Age Verification Requirements for AI Turns Out to Be Sneakily Backed by OpenAIEnglish
24·13 hours agoFuck Age Verification it is authoritarianism in disguise, wait sorry it isn’t in disguise at all.
supersquirrel@sopuli.xyzto
Technology@lemmy.zip•Visa is bringing AI to credit card charge disputesEnglish
21·13 hours agoI hate this timeline.
supersquirrel@sopuli.xyzto
Global News@lemmy.zip•Sweden's prime minister open to coalition with right-wing populistsEnglish
1·1 day agoWhat does the phrase “rightwing populist” even mean?
edit is that a specific term in Sweden?
supersquirrel@sopuli.xyzto
Technology@lemmy.zip•Source Code for Anthropic's Claude Code Leaks at the Exact Wrong Time (Potential Upcoming IPO)English
13·1 day agoWell, the intelligence sure has become artificial.
supersquirrel@sopuli.xyzOPto
Technology@lemmy.zip•The first quantum computer to break encryption is now shockingly closeEnglish
14·1 day agoSorry! You must reset your password, you cannot use the same password you have used before, please make a new password!
supersquirrel@sopuli.xyzto
Fediverse vs Disinformation@lemmy.dbzer0.com•CNN Panel FLIPS OUT When Emma Vigeland Mentions Gaza Genocide [Video][17mins]
6·1 day agoI have so much respect for Emma Vigeland, it is great to see her get some national exposure.
supersquirrel@sopuli.xyzOPto
Global News@lemmy.zip•Israeli court closes case into Palestinian teen’s death despite evidence of starvationEnglish
7·1 day agoSurely this is what God wants.
supersquirrel@sopuli.xyzOPto
Ukraine@sopuli.xyz•Russia’s Bad Day in the Skies—After Su-34 Fighter Jet Loss, An-26 Transport Plane Crashes
3·1 day agoThanks for the share, wow
supersquirrel@sopuli.xyzto
Ukraine@sopuli.xyz•USF strikes Russian Tor air defense system in Luhansk region
2·1 day agoYes true, I meant to clarify I consider drones a type of “air force”, I meant the term very generally.
supersquirrel@sopuli.xyzto
No Stupid Questions@lemmy.ca•Whats the best air purifier in terms of efficacy and reasonable ongoing costs like filters/hydro etc?
1·1 day agoCoway Airmega for most people
model AP-1512HH























This is about a moral panic and centralization of access to knowledge, how can it be interpreted otherwise if that is by far the biggest shortterm and longterm impact?