Fermion
@Fermion@mander.xyz
- Comment on If dark matter doesn't emit, absorb, or reflect light, what happens when light hits it? 5 days ago:
What does it mean when light hits something? Is light “hitting” the air around you? If so how can you see at all?
For light to measurably change when it interacts with a particle or group of particles, there has to be a separation of electrical charges. The light also has to be close to the energy of an available energy state transition. There’s lots of diffferent types, but remember electron orbitals? Most visible light interactions involve electrons jumping to higher energy orbitals or falling to lower energy orbitals. There are only very specific interactions that are possible with specific wavelengths of light. Fortunately, visible light spans a wide range of wavelengths that interact very strongly with the forms of matter that surround us.
There are lots of things that won’t interact with light at all. Nuetrons and neutrinos don’t have a charge separation and don’t interact with light at all. You could shine very strong lasers through a cloud of neutrinos, and as far as the beam path would indicate, it would be identical to vacuum. They have to be studied by how they interact with other matter that does interact with light. It may sound counterintuitive, but single free charges like a bare hydrogen nucleus or free electron also don’t absorb or emit photons. It is only when charges can interact with eachother that we get light interactions.
So nothing measurable happens when light propagates through a volume where dark matter is. There is no mechanism by which the two can interact, except gravitational lensing.
- Comment on Ordinary americans are facing huge electricity bills because of AI Data centers owned by Amazon, Google, Microsoft 1 week ago:
The supply side of power generation is coordinated by a bid system. So the cheapest sources are activated first. As demand goes up increasingly expensive forms of power generation are turned on.
For daily and seasonal variation, this is fine. The amount of time that really expensive generation is active is only a small portion and the base rate can stay low. However, if you add a bunch of baseload without adding equivalent generation, your utility will be stuck buying at the top end of the capacity market auction. The datacenter will have negotiated a discoubted rate though because constant demand is good for the utility in the long run.
Source: none given, but the capacity auction is a real thing, and the predicted behaviour of such a system can be reasoned.
- Comment on Just opened a new jar of jam, only to find mold in it. 2 weeks ago:
That almost seems worse because it implies the contamination happened in the canning facility, not improper shipping/handling. I hope you report it to the manufacturer.
- Comment on Just opened a new jar of jam, only to find mold in it. 2 weeks ago:
Normally I wouldn’t bother on something that is pretty cheap, but if one failed to seal, they really need to sample the batch and see if a recall is necessary. Botulism is no joke.
- Comment on [deleted] 2 weeks ago:
Let them eat Argentinian beef
- Comment on Halloween is coming up, folks. So here's your third idea for a costume 1 month ago:
You should choose the octopus chef for your use case.
- Comment on how do school shooters know how to use guns? 2 months ago:
Hunter’s ed is basically the opposite of what you stated. It’s not part of the state curriculum. It’s similar to drivers ed courses for people to be able to get a learners permit before they turn 18. Similarly below a certain ages, most states require completion of a hunter’s education course to be able to purchase a hunting license and legally hunt.
The courses go over topics like property rights, how to carry a weapon making sure it’s not pointing at anyone, what high vis clothing is required, always knowing what is behind an animal before even aiming, rules about how a weapon must be unloaded when in a vehicle, and they strongly urge keeping an interference lock in the action of any firearm in storage.
Hunter’s ed doesn’t teach kids how to shoot, they teach kids how to not be idiots when hunting.
- Comment on Stupid oven mounts 2 months ago:
Being in a state of having a currently working machine with replacement parts on hand for the most likely failure isn’t what I would consider rake in face, unless the “fix” adds a safety liability.
- Comment on It's the dream 3 months ago:
There are plenty of dressings that aren’t unhealthy: simple vinnaigrettes, ginger dressing, sesame dressing. Homemade dressings without all the sugar and emulsifiers are usually fine.
- Comment on Sony say their PSN account requirement on PC is so you can enjoy their games 'safely' 1 year ago:
Better to remain silent and be thought a fool than to speak and to remove all doubt.
Some companies need to learn that silence on a matter is better than obviously contrived excuses.
- Comment on ASUS breaks your ROG Ally if you don't pay $200 for warranty repairs: SCAMMING COMPANY! 1 year ago:
Tech Jesus is a colloqial name for Steve Burk of Gamers Nexus because of his hairstyle resembling old depictions of Jesus.
- Comment on It is very therapeutic to garden, though. 1 year ago:
My parents are around 44 deg lat and their tomatoes do very well. It seems like something else must be limiting your success.
- Comment on This Doctor Won’t Take Health Insurance - and Charges Just $35 a Visit | AJ+ (5:46) 1 year ago:
Wht do they even bother charging the patient at all if the vast majority of funding is coming from the national system?
- Comment on Chinese network behind one of world’s ‘largest online scams’: Vast web of fake shops touting designer brands took money and personal details from 800,000 people in Europe and US, data suggests 1 year ago:
I usually look up the number for something like an ftc or fbi tipline if a website absolutely forces putting in personal info.
- Comment on Which song is forever linked to a movie for you now? 1 year ago:
All Star by Smash Mouth will forever conjure images of Shrek.
- Comment on Tesla Cybertruck: A Tragedy On Four Wheels 1 year ago:
I think it parallels nicely with the DeLorean before Back to the Future made the DeLorean look cool.
- Comment on Anon finds a rock 1 year ago:
They had to have meant heart shaped right? A hearth shaped rock would have been too big for a kid to take home, or if it was small they would have called it rectangular or something.
- Comment on Anon finds a rock 1 year ago:
I bet you live much closer than 1500km to a river or lake. Many of those bodies of water have public trails or sometimes even little sandy beaches. You won’t find shells but there’s plenty of other cool stuff to search for like the perfect skipping stone or walking stick, or a rock with a really cool color pattern, or mushrooms, etc. There’s something inexplicably restorative about spending time in nature near water.
- Comment on Put a ring on it? 1 year ago:
The money and fame that Bilbo acquired through his first journey already attracted unwanted attention. It was one of the biggest drawbacks to adventuring.
- Comment on What would be a good glue to repair this spatula with that wont he toxic or come undone in a dishwasher? 1 year ago:
Rada makes some pretty decent metal spatulas if you want specific recommendations.
The blade part is way thinner than plastic spatulas. Now that I’m used to the stainless steel ones, I feel clumsy and inept when I have to use someone else’s nylon spatula.
- Comment on Plastic tea bags 1 year ago:
That’s a little hyperbolic. There’s a lot of mechanics at play in generating microplastics. Fabrics have microscopic thin threads of plastics. It should be no surprise that rubbing up against thousands of tiny strands every time we move and wash synthetic fabric clothes releases many tiny particles. Plus clothes have to deal with UV degradation.
The plastic components in an RO system should be spelled to not leach plasticized. They should have smooth walls and laminar flow. There shouldn’t be much to abrade the plastic surfaces and shed particles. They may not be perfect, but water from an RO system will have orders of magnitude fewer microplastics. So an RO system still “does something about it.”
We do need to address the problem, but I wouldn’t want people to avoid beneficial remediation just because it has some plastic components.
- Comment on inshallah they find him 1 year ago:
Can we get ai to make a Finding Nemo/Taken crossover? Marlin voiced by Liam Neeson will find Nemo and kill his abductors.