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Personally I find the invention of zombies ridiculous. Totally unbelievable. The hype is beyond me.What about Zombies ?
Personally I find the invention of zombies ridiculous. Totally unbelievable. The hype is beyond me.What about Zombies ?
Since zombies don't exist and their biochemistry and neurophysiology - if any, is unknown, it's impossible to say.
pibbur who maybe tries to destroy interesting questions with facts.
PS. Anyhow, the concentration of antidepressants in brain tissue would be much lower than the amount found in pills of said substances. So probably no effect anyhow. Unless the unexisting were hypersensitive to the drug. DS.
Today, 40 years ago, Voyager 1 launched.
From Wikipedia:
"At a distance of 139 AU (2.08×1010 km) from the Sun as of July 1, 2017,[3] it is the farthest spacecraft from Earth as well as the farthest man-made object. It is also the most distant object in the solar system whose location is known, even farther than Eris (96 AU) and V774104 (~103 AU)."
None of the other current leaving-the-solar-system-objects can overtake it.
We're still in touch with it btw, but signals take more than 19 hours to reach us.
pibbur who is impressed, really impressed.
Today, 40 years ago, Voyager 1 launched.
From Wikipedia:
"At a distance of 139 AU (2.08×1010 km) from the Sun as of July 1, 2017,[3] it is the farthest spacecraft from Earth as well as the farthest man-made object. It is also the most distant object in the solar system whose location is known, even farther than Eris (96 AU) and V774104 (~103 AU)."
None of the other current leaving-the-solar-system-objects can overtake it.
We're still in touch with it btw, but signals take more than 19 hours to reach us.
pibbur who is impressed, really impressed.
I wonder considering the quantum transmission science i posted is available now, that if scientists will send a satellite with that functionality to follow it so we can get information quicker.
I think he's talking about this'n: https://www.sciencealert.com/scient...tual-quantum-communication-for-the-first-timeUnfortunately not. So-called quantum teleportation does not allow for faster-than-light communication, and if it did, things would start to get very strange indeed.
https://en.wikipedia.org/wiki/No-communication_theorem
Essentially, it goes back to the weirdness of quantum theory, which is often not conveyed very well in the popular articles. There is a fundamental difference, in quantum terms, between measuring the state of a particle, and forcing it into a chosen state.
Let's say a pair of quantum particles are entangled, and have only one property of being either 1 or 0. If you measure one particle, and find it be be in state 1, then you know that the other must be state 0, even if it's on the other side of the universe.
However, if I force my particle to be in state 1, then I break the entanglement, and the state of the other goes back to being a 50/50 chance of being in either state.
So, this ability is very useful for sending each other encrypted messages, but only if we can communicate and compare notes using a normal method of communication. If we can do that, we can detect if anyone has observed or interfered with the encryption key, and guarantee security.
But, it is completely useless for actually sending information using only the entanglement, because we can only know the state of the other particle if the state of mine was defined by a 50/50 chance. All we could "send" each other is random bits.
Ah, yes that is true. If we dont know what one is, knowing the other is useless. But I am pretty sure we will get that problem solved in the future. Is it true that quantum entanglement cannot send data faster than light?
Yes. Quantum theory, as we understand it, does not allow for FTL communication. It's not a problem to be solved - as far as we know, it's a law of nature. Although entanglement appears to allow for instantaneous action over any distance, the way it actually works prevents you from ever using it to send coherent information.
It's one of those rules that, if violated, would break down reality as we understand it, so if it ever happened, you could be sure it would be pretty earth shattering news. If you could transmit messages faster than light, you would then be able to send messages into the past. Then we wouldn't just have to worry about President Trump, but President Biff Tannen.
Today, 40 years ago, Voyager 1 launched.
From Wikipedia:
"At a distance of 139 AU (2.08×1010 km) from the Sun as of July 1, 2017,[3] it is the farthest spacecraft from Earth as well as the farthest man-made object. It is also the most distant object in the solar system whose location is known, even farther than Eris (96 AU) and V774104 (~103 AU)."
None of the other current leaving-the-solar-system-objects can overtake it.
We're still in touch with it btw, but signals take more than 19 hours to reach us.
pibbur who is impressed, really impressed.
Although I am not sure if time travel is impossible, my physics teacher tried to teach me because of how light operates, that it was impossible to travel backwards in time, but that never made sense to me, it cause him a lot of frustration LOL. But I am pretty sure the amount of energy needed to send something back in time would be enormous such that even if Earth survives the next thousand years and a scientific breakthrough occurs such that we can send something back in time, at best it would be data that we could send back in time. But that is all speculation.
Yes. Quantum theory, as we understand it, does not allow for FTL communication. It's not a problem to be solved - as far as we know, it's a law of nature. Although entanglement appears to allow for instantaneous action over any distance, the way it actually works prevents you from ever using it to send coherent information.
So what is the point of the ongoing experiments if it's useless?
Well, the amount of energy needed to send an object back in time by exceeding the speed of light is not enormous - it's infinite. That's why we can be pretty confident that it's not going to happen in that way.