Can cats understand doors? or do they think they're some sort of portal to a diffrent realm?

Quantum mechanics suggests that particles can become entangled, and their states are linked even when separated. When large systems like humans or objects are involved, the process of decoherence caused by interactions with the environment—prevents us from observing these quantum effects. Given that the "many worlds" interpretation proposes that all possible outcomes of quantum events occur in parallel realities, doesn’t the limitation of decoherence in macroscopic systems challenge or contradict this idea?

Using my cat as an example, I adopted her when she was only 45 days old and she has lived indoors ever since. She never had to but any actual living things. But still she seems to know how to “ambush” a toy.

I’m curious about what the mechanism is/where is the information for that stored and how it works.

Doesn't ionising radiation go thru pretty much everything on its path? If so, how does protective clothing prevents radiation from either passing thru completely or partially.

Like, sending a sharpshooter to execute the top chain on the field (sniper) to foil the whole attack because there's noone left to keep the ranks together?

I heard (read) from few sources that the field commanding officer usually use their binocular from a hill and send orders through horses. Wouldn't he be the most obvious guy to be suspected as the pack leader?

Like I know every animal has it's only instincts just like cats/dogs.

But say you took a fox from the wild when it was a day old. And you raised it and that fox had no exposure to the outside world or any other animals, why and how is that different to a cat? Surely it won't learn certain habits that wild foxes do as it won't have had the exposure to them behaviors.

I just don't see how it's any different from keeping a dog from when it's a puppy.

For example, are there any particular parts of the brain that are involved, or hormones, etc? And what exactly they do?

For example, are there any particular parts of the brain that are involved, or hormones, etc? And what exactly they do?

I live in Scotland, which produces a lot of renewable energy, particularly through wind power. In January this year, the Scottish government confirmed that we generated the equivalent of 113% of Scotland's electricity consumption from renewable energy sources.

Why does this not lead to a reduction in energy costs? Scotland has the highest electricy prices in the UK (and therefore the world, as the UK's energy prices are currently the highest in the developed world), despite the fact we are generating enough renewable electricity to power all of Scotland’s homes.

How does Eddington luminosity work and why the big old black hole LID-568 problematic in this context?

My grocery store I work at has 4 suppliers and it’s hectic getting freight in and managing shipments. Walmart’s website says it has >100,000 suppliers and >10,000 stores so how the heck do they do it? It seems like even an army of people would have trouble ordering from all those suppliers.

Like would uranium send radiation further away from it than radium.

My employer uses an app to give us our schedules. In order to sign into it, once I put in my username and password, I have to press a button on a little dongle I keep on my Keychain, which gives me a six-digit code to type into the app. How does the app know what code the dongle is going to give me when as far as I can tell it isn't connected to the internet in any way?​

I was sitting in my car at a red light. When it went green I accelerated and notice the steam from my coffee appears to move forward. Same happened with helium balloon.

I just assumed based on Newtonian physics it would move backwards.

How does applying voltage/electric field cause molecules to migrate in an electrophoresis run?

Poetry in an art across humankind. So is songwriting. Both of those almost always have rhyming words.

Why do we like it? Is it the sound of rhymes? wordplay?

The scientific consensus on the experiment seems to be that it doesn't imply that our observation can change the past. I've read the explanation for it but I cannot make head or tails of it.

I swear I've never read anything as counterintuitive as this.

My kids are asking the tough questions and I’m out of my league… I read about SN 1054 and Chinese & Japanese astronomers observing the supernova in the year 1054. Then I get lost. Every single article I’ve found talks about the supernova occurring “about 1,000 years ago.” But SN 1054 / Crab Nebula are ~6,500 light years from earth. So does that mean the supernova actually occurred about 7,500 years ago? If not, why not? If so, why is it talked about as occurring only once we observed it?

As the title says, I've been wondering... in this appartment, we have a gas boiler in the kitchen and each room has their own radiator, but there's a wonky control unit in the living room that has developed some weird issue where it constantly thinks the room is 3C hotter than it actually is.

Thus I've been debating disabling the auto functions, but with that I'd no longer have auto cool down for the night, which the device claims would significantly lower the gas bill... so any experts around?

Personally I'm on the fence... on the one hand, letting the flat cool down over night, i.e. not having the heat on, will obviously use less gas during that time, but I'm wondering whether having to heat up a cooled down flat in the morning wouldn't just eat up all that "saved" expense by having to use more gas to get the cooled-down rooms up to desired temp.

Any insight?