Fermion

@Fermion@mander.xyz

• ⁨Comment⁩ on ⁨There should be a "last used combination" faucet handle for sinks so you don't have to balance hot and cold everytime during winter⁩ ⁨⁨7⁩ ⁨hours⁩ ago⁩:

  The solution to that is for a third return line to be run during a new build or remodel, but that’s definitely not a weekend project for most homes.

• ⁨Comment⁩ on ⁨There should be a "last used combination" faucet handle for sinks so you don't have to balance hot and cold everytime during winter⁩ ⁨⁨12⁩ ⁨hours⁩ ago⁩:

  It’s reasonably common for showers to have a mixing valve and a flow rate valve on separate handles. That accomplishes what you want. You just have to remember which is which and only use the flow rslate valve to turn on and off.

  More importantly, hot water circulation systems should be more common. It’s the waiting for the cold water in the line to flush out that really makes setting temperature a hassle.

• ⁨Comment⁩ on ⁨If dark matter doesn't emit, absorb, or reflect light, what happens when light hits it?⁩ ⁨⁨3⁩ ⁨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 ⁨The Big Short Guy Just Bet $1 Billion That the AI Bubble Pops⁩ ⁨⁨2⁩ ⁨weeks⁩ ago⁩:

  I think that might actually send the US into a debt spiral that would require leaning into printing and inflation. Net interest for FY25 is $933 Billion putting servicing debt as the third largest federal expenditure. Any bailout will either be insignificantly small or will tank the dollar.

  I’m not saying you’re wrong, but it would be an incredibly stupid thing to do.

• ⁨Comment⁩ on ⁨[deleted]⁩ ⁨⁨2⁩ ⁨weeks⁩ ago⁩:

  Let them eat Argentinian beef

• ⁨Comment⁩ on ⁨Open Printer is a fully open-source inkjet with DRM-free ink and no subscriptions⁩ ⁨⁨1⁩ ⁨month⁩ ago⁩:

  What do you have against owls?

• ⁨Comment⁩ on ⁨Watch first, then wipe: Some China’s restrooms put toilet paper behind paywall⁩ ⁨⁨1⁩ ⁨month⁩ ago⁩:

  Germany doesn’t get everything right.

• ⁨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 ⁨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.