cynar
@cynar@lemmy.world
- Comment on Desks 1 week ago:
They almost stopped using helmets again, too. The number of head injuries skyrocketed. Thankfully, someone pointed out to command that the helmets weren’t causing the injuries, but converting fatalities into injuries. They hadn’t been recording head injuries on corpses.
- Comment on [deleted] 3 weeks ago:
There are use cases where long passwords could be problematic. 64 would be long enough for most purposes, but short enough not to cause issues for things like microcontrollers.
It should be paired with a strongly recommended larger value, however.
- Comment on Do you think being left-handed gives any unique qualities or advantages compares to other right handed? 3 weeks ago:
From memory, we are statistically more likely to be geniuses. Unfortunately we are also equally as more likely to be clinically insane.
- Comment on KFC drops pledge to stop using ‘Frankenchickens’ in the UK 3 weeks ago:
You joke, but this was legitimate concerns raised in many places, when slavery was abolished. It was often phased out slowly to allow businesses to adapt.
It’s at least better than nothing, but far from perfect.
- Comment on Why does it seem most people, mainly conservatives, against Trans people? Unless I am wrong I never heard of one shooting up a school church or whatever. The ones I have met have been pretty cool. 4 weeks ago:
They came for the trans ~~and I did nothing, because I am not trans ~~ and I fought back where I could. Because fuck that shit, we know there this dance will end otherwise!
- Comment on Where can I buy a mosquito laser system? 4 weeks ago:
Most of the problem with lasers come from focusing them. The eye is incredibly good at it. This means even a small laser pen can reach MW/m^2 ranges by the time it hits the retina.
IR is a different story (at longer wavelengths). Without the ability to see it, our eye will not attempt to focus on it. Also, our eyes lenses are not particularly transparent to it. 3rd, the ultra short pulses mean that there is no time to focus.
As for the mosquito, the laser is tuned to a frequency that is strongly absorbed by their wings. Given their size and how delicate their wings are, a tiny amount of energy can cause significant damage. Conversely, the same energy on our eye will just cause a slight amount of heating. The bulk mass of the eye will absorb this fine, with no damage
- Comment on Where can I buy a mosquito laser system? 4 weeks ago:
It used a microphone of IR laser. Your eye couldn’t see it, nor focus it properly. However, it had just enough power to overheat and damage the mosquito wings.
I believe the issue was with the targeting. It could don’t, but not cheap enough for the mass deployment they intended. Mosquito nets were far more effective, once cost was accounted for.
- Comment on Anon questions our energy sector 4 weeks ago:
The problem is that nuclear reactors can’t be built fast. We’ve also lost a lot of the expertise to age and retirement.
Nuclear should have been a major factor in dealing with climate change. Unfortunately, we no longer have time for it to take up the slack. It will need to catch up with other renewable energy sources, we can’t wait for it.
- Comment on Anon questions our energy sector 4 weeks ago:
Particularly since coal power stations emit FAR more radioactive material, routinely, than most nuclear “leaks”.
- Comment on Are disabled people and the elderly going to survive another Trump presidency? 1 month ago:
The Germans kept careful documentation. The allies also photographed the hell out of it, and protected those records. They knew future generations (us) wouldn’t believe how evil “normal” people could get. So made sure to collect plenty of evidence.
- Comment on [Satisfactory] 130 hours in, i have built a turbofuel-powered oil rig. (more pictures and details in description) 1 month ago:
It takes some practice to beautify it. You’ll also spend more time doing that than the whole time taken to build the core.
- Comment on If I eat a ton of garlic, and you eat a ton of garlic, can one of us recognize the smell of the other? 1 month ago:
At university, I had a housemate who was doing research into the chemical(s) in garlic that give it its smell. She was completely nose blind to it. You also went nose blind to garlic, just by being in the same house.
- Comment on Is it okay to take drugs to make yourself a better person? Does it make a difference if "better" is mental or if it's physical? 1 month ago:
In short, yes, but it has to be carefully controlled, and on your terms.
I have adhd, I regularly take medication for it. It has a significant effect on my personality. I takes away the “excited labrador puppy” energy, which is replaced with a more calm and considerate version of me.
It’s worth noting that this change is something I wanted. The improvements for others is a nice side benefit. It’s also done with medical supervision.
It’s also worth noting that the change does become more permanent. Even when unmedicated, I can mode switch far more easily than before. My brain understands the new state better and so can recreate it, even without chemical support.
- Comment on Why do Orks from Warhammer 40K have nipples? 2 months ago:
One of the old codex books. It’s going back decades however. The works have changed a lot from that era. It was the same codex as the buzzer squig catapult, if that helps narrow it down.
- Comment on What metrics are deoderant companies using to calculate their "72hr protection" numbers? 2 months ago:
I periodically used mouthwash, on my arm pits, as a teenager. It cleared the funky smell quite impressively. I would definitely suspect head and shoulders anti fungal properties as the useful bit.
- Comment on Do it!! 2 months ago:
Spiders don’t have to eat their mate. The female just tends to be hungry, after mating. The male is snack sized, right there, and of no further use.
Apparently, when trying to breen endangered spiders, they make sure the female is well fed prior. It gives the male a chance to make a quiet getaway.
- Comment on Why is space 2 dimensional? 2 months ago:
It’s a combination of both, I believe.
The initial conditions had a definite rotational bias. This is preserved in the current orbital plane and direction.
On top of that, anything massively off that plane is liable to hit or interact with the material in the plane, given enough time. It will be flung around, eventually either out of the system or into the plane.
Stuff orbiting relatively close to the plane will have a biased pull towards the “average” plane. This will slowly flatten the orbits out.
All these processes take a lot of time. The solar system, in general, has had enough time to settle. The ort cloud and other outer bodies are still quite chaotic. We see a lot more off plane than within the traditional solar system. They experience the latter effects far less, and so take longer to equalise. They still have a bias towards the initial spin however.
- Comment on From a cyber security aspect how hazardous are random mini PCs from Ali Express/Amazon if you are starting with a fresh OS install? 2 months ago:
It depends on your exposure profile.
Installing malware and bloatware into an OS is relatively easy. Doing the same to a bios is doable, but a LOT harder.
If you’re after a mini PC for home use or even a small business, wiping the os is likely fine. The concern would mostly kick in with larger organisations or government level targets.
It’s a question of how many man hours of effort hacking you is worth. Even if they are compromised, they are unlikely to risk outing the breach for anything less than a high value target.
- Comment on Why isn't apple a popular ice cream flavor? 2 months ago:
I suspect it’s related to the difficulty in processing. Kiwi fruit are quite small and non-trivial to extract the flesh from. This would make it more expensive to extract.
This is less of an issue now that a few decades back. However, most people are quite conservative on their juice choices. Low sales still mean higher cost, which reduces sales.
- Comment on Why do phone manufacturers use in-display fingerprint readers instead of fingerprint readers on the power button? 2 months ago:
It became a big thing on android just before covid happened. Unfortunately, masks completely confused it.
I currently have both active on my phone, it’s about 50/50 which unlocks it first. I tend to unlock my phone as I bring it out of my pocket via fingerprint. If that fails, then face ID kicks in.
- Comment on Fears for patient safety as GPs use ChatGPT to diagnose and treat illness 2 months ago:
It’s depends purely on how it’s used. Used blindly, and yes, it would be a serious issue. It should also not be used as a replacement for doctors.
However, if they could routinely put symptoms into an AI, and have it flag potential conditions, that would be powerful. The doctor would still be needed to sanity check the results and implement things. If it caught rare conditions or early signs of serious ones, that would be a big deal.
AI excels at pattern matching. Letting doctors use it to do that efficiently, to work beyond there current knowledge base is quite a positive use of AI.
- Comment on Don't look now 3 months ago:
Depends on how you are observing it photons impart energy and momentum. The true, detailed explanation is a lot more convoluted, it’s all wave interactions, in the complex plane. However, digesting that into something a layman can follow is difficult.
The main point I was trying to get across is that there is no such thing as an independent, external measurement. Your measurement systems minimum interaction is no longer negligible. How that is done varies, but it always changes the target and becomes part of the equations.
- Comment on Don't look now 3 months ago:
We know how it works, we just don’t yet understand what is going on under the hood.
In short, quantum effects can be very obvious with small systems. The effects generally get averaged out over larger systems. A measurement inherently entangled your small system with a much larger system diluting the effect.
The blind spot is that we don’t know what a quantum state IS. We know the maths behind it, but not the underlying physics model. It’s likely to fall out when we unify quantum mechanics with general relativity, but we’ve been chipping at that for over 70 years now, with limited success.
- Comment on Don't look now 3 months ago:
Observer here doesn’t mean the same as the layman meaning. It’s anything that interacts with the system while it’s developing.
Interestingly, it actually can be used for a presence detector, at least in a sense. You can use it to transfer cryptographic information. If no-one is listening in, about half your sent numbers are wrong, but you can agree on what ones. However, if someone is listening in, all your data gets randomised.
They actually now use this system to transfer information between banks. They send a random stream of 0s and 1s over a fibre optic cable. They then send (semi publicly) which bits made it properly. If someone spliced into the fibre, they would get the encryption data, but the target bank would not! They know instantly that something is wrong.
- Comment on Don't look now 3 months ago:
For those confused, it’s worth noting the difference between observed as a layman concept and as a quantum mechanical one.
In QM, to observed is to couple the observer to the “system” being observed. Think of it like “observing” your neighbour, over a fence using a BB gun. When you hit flesh, you know where your neighbour is. Unfortunately, the system has now been fundamentally changed. In a classical system, you could turn down the power, until your neighbour doesn’t notice the hits. Unfortunately, QM imposes fundamental limits on your measurements (heisenburg and his uncertainty principal). In order to observe your neighbour accurately, you need to hit them hard enough that the will also feel it and react differently.
QM behaves in a similar way. Initially, the system is just a single particle, and is not very restrained. This allows it to behave in a very wave like manner. When you observe it, the system now includes the whole observation system, as this coupling propagates, more and more atoms etc get linked. The various restraints cause an effect called decoherence. The system behaves ever more like a classical physical system.
In short, a quantum mechanical “observer” is less sneaky watching, and more hosing down with a machine gun and watching the ricochets.
- Comment on How come it seems that there are little to no serial killers who are women in the modern age? Are they not caught or is it just the men that make the news? 3 months ago:
This also massively effects the risk/reward balance. Ultimately, a woman’s ability to have children is limited by her biology. The limit on men is FAR higher.
For women, once they hit the resource requirements to support 2 dozen children, there was relatively little real gain. A successful man could (in theory) have hundreds of children. Genghis khan being the most egregious example. Taking large risks for large gains makes sense for men, in a way that just doesn’t for women.
- Comment on How come it seems that there are little to no serial killers who are women in the modern age? Are they not caught or is it just the men that make the news? 3 months ago:
Women were functionally disabled by having children, spending a significant amount of time either pregnant, or breastfeeding. This makes them the natural parent to focus on raising children. Also, in nature, losing 1 parent has a relatively minor drop in survival chances compared to losing 2.
This ends up with men being more “disposable” than women. If 1 group needs to flee with the children, while the other holds off an attack, it’s most sensible for the men to defend. The women would provide a final line of defence.
- Comment on Government should “urgently” legalise e-scooters says shared transport charity - says serious safety incidents are rare 3 months ago:
It stops a lot of people. Unfortunately, they are also the ones who would actually follow the rules. This just leaves the rule breakers and idiots, giving everyone else a bad name.
I would personally love a micro mobility option. An option between walking and driving my van somewhere would be extremely useful.
- Comment on Get High Like Planes 3 months ago:
There are several major hurdles, and no particularly strong evolutionary drive to overcome them.
The first is breathing. Fish “breath” water. Shifting to air takes a huge reconfiguration. It also compromises their ability to process water.
The second is power. “Flying” fish are actually gliders. They build up momentum in the water before launching themselves into the air. They don’t actually have the ability to flap and maintain their flight. Developing the muscles for this would likely compromise their swi.ing slightly. That would be a far bigger issue, compared to a bit of extra gliding.
A flying fish’s goal is to break contact with an underwater hunter, before reentering the water. A steerable glide is more than enough of this. There is simply no pressure to advance it further.
- Comment on Anon practices time management 4 months ago:
The executive functions are a tiebreak system, in many ways. It balances the various possible options, both benefits and costs, short term and long.
Procrastination is when this system can’t overcome various situational inertias. I tend to think of it akin to a teacher in a classroom. The kids are perfectly capable of raiding a kitchen, when sufficiently hungry. It’s also impossible to keep them focused on maths, when a dozen labrador puppies are released into the classroom. Within its limits however, it’s supposed to turn disparate drives into coherent action.
I have adhd. The teacher is exhausted from a 3 day bender, and someone swiched their coffee to decaf. Avoiding situations that cause a procrastination lockup are a fact of life.