Random Questions "Attempt II"
14 years ago
Posts: 761
Quote from MewMan
but i'm asking about people that own lots of cats. like 3 or more? i should have used "most of" instead of "all" though
Or you should have emphasised that you really mean lots of cats...
I remember that there was a lady living near my town. She lived alone, but she had friends, people visited her, so she wasn't really lonely. Near her house there was a forest by the road and very often, especially before summer holidays, people would take their pets and leave them there (you know, this "I love puppies and kittens, but when they grow up I don't want them anymore, so I throw them away" kind of people). That lady was regularly picking up these poor cats and dogs and taking them to animal shelter, but finally there were too many animals there, so the shelter wouldn't accept them. So she started taking them to her house and she ended up living with about a hundred cats and dogs, until they were finally taken away from her.
The reason I write this is that there many different situations and we can't just point a finger at someone and say: "she has so many cats, she must be lonely". It's often true, but sometimes it's not the case.
Sorry for writing such a long post -.-''
Member14 years ago
Posts: 301
Quote from Hanae
Turbophoenix: Here's the episode number and title, in case you were interested.
Haha, awesome. Thanks guys, that was really bugging me.
14 years ago
Posts: 3380
Quote from MewMan
but i'm asking about people that own lots of cats. like 3 or more? i should have used "most of" instead of "all" though
It's not a question that should have been asked in the first place (as in, it's a ridiculous question).
All you need is common sense.
No one can accurately answer such a question unless they personally know EVERY person in the world who owns a lot of cats.
I have a physics question:
Assuming that it's strong enough and there are no obstructions, is it possible for a ray of light pointed parallel to the ground to circle the globe and reach its point of origination or would it travel straight out into space?
14 years ago
Posts: 761
Quote from Scyfon
I have a physics question:
Assuming that it's strong enough and there are no obstructions, is it possible for a ray of light pointed parallel to the ground to circle the globe and reach its point of origination or would it travel straight out into space?
When Mythbusters were checking if it was true that the man landed on the moon, they went to some lab, where they were told that the astronauts landed on Moon, they installed a mirror there. And people can send a ray of light, which is deflected by the mirror on the moon, and then comes back to Earth. So I think that the ray would go to space. The light from the stars reaches the Earth, although it's a bit distorted by the atmosphere - but it definitely doesn't travel around the Earth...
I'll try to find this fragment of Mythbusters episode...
edit: I found it, here's the link
14 years ago
Posts: 161
Quote from Scyfon
I have a physics question:
Assuming that it's strong enough and there are no obstructions, is it possible for a ray of light pointed parallel to the ground to circle the globe and reach its point of origination or would it travel straight out into space?
Well, the gravity of the Earth isn't anywhere near strong enough to trap light, so a beam of light shone parallel to the surface of the Earth would simply go off into space. In fact, the point at which gravity is strong enough to trap light and prevent it escaping into space is the definition of an event horizon, so it couldn't happen unless the Earth was a black hole.
You could in theory send a light packet around the circumference of the Earth in a waveguide, such as a fibreoptic cable. However, it would require an extremely strong laser to send a light signal that far without it dissipating completely. Real world fibreoptic communications would instead use repeater stations to renew the signal after it had travelled a certain distance.
14 years ago
Posts: 3380
Cool. Cool cool cool.
Member14 years ago
Posts: 301
Quote from Hanae
Quote from Scyfon
I have a physics question:
Assuming that it's strong enough and there are no obstructions, is it possible for a ray of light pointed parallel to the ground to circle the globe and reach its point of origination or would it travel straight out into space?When Mythbusters were checking if it was true that the man landed on the moon, they went to some lab, where they were told that the astronauts landed on Moon, they installed a mirror there. And people can send a ray of light, which is deflected by the mirror on the moon, and then comes back to Earth. So I think that the ray would go to space. The light from the stars reaches the Earth, although it's a bit distorted by the atmosphere - but it definitely doesn't travel around the Earth...
I'll try to find this fragment of Mythbusters episode...
edit: I found it, here's the link
Although that's true, it doesn't address the point. The lasers people use for that kind of thing are aimed directly at the moon, not parallel to the Earth's surface. It's like a rocket - going straight up it will go into space, but would it escape the atmosphere if it flew along the surface, or would gravity work against it and make it just go in a huge circle? Of course light is different to a rocket. For the rocket, it would do the circle. Light would not.
Quote from Scyfon
Cool. Cool cool cool.
I totally read that in an Abed voice.
14 years ago
Posts: 603
Quote from MewMan
Quote from Hanae
Quote from MewMan
eh...so could anyone please explain what is wrong with my question?
is it because i used "all"?
or is my question itself ridiculous(or both)?You generalized it too much. There are some lonely people who have cats as their only friends, but I also know many cat owners who are very sociable 🙂 It's as if you asked "are all rich people bad?" or something.
I have a cat and I'm not lonely at all 🙂but i'm asking about people that own lots of cats. like 3 or more? i should have used "most of" instead of "all" though
Mewman, i told you not to believe these people.
Didn't i just say its fact that they are lonely serious face
They speak nonsense, believe in science.
The lonely gene comes from a vast amount of cats in one place... 😐
[img]http://i1114.photobucket.com/albums/k528/fr33noob/on3winged9.jpg[/img]
I believe in letting people do as they wish, as do I myself. Sometimes, of course, what I wish to do is kill them and they do not wish to die. This gives life interest.
[img]http://www.nodiatis.com/pub/26.jpg[/img]
14 years ago
Posts: 761
Quote from Turbophoenix
Although that's true, it doesn't address the point. The lasers people use for that kind of thing are aimed directly at the moon, not parallel to the Earth's surface. It's like a rocket - going straight up it will go into space, but would it escape the atmosphere if it flew along the surface, or would gravity work against it and make it just go in a huge circle? Of course light is different to a rocket. For the rocket, it would do the circle. Light would not.
Yup, I know, I'm just really bad at physics 😀 And I used it as a proof that the atmosphere does not change the path of light significantly. And I think it is kinda obvious that Earth's gravity is not strong enough to prevent light from going into space... The very fact that we can see Earth from space is a proof of that (I think 😀 )
14 years ago
Posts: 1127
are the oniisama e... anime and manga equally good? or does the anime cut out some details from the manga?
14 years ago
Posts: 2275
ask that in the respective series forum section.
[color=green]"Officially, this machine doesn't exist, you didn't get it from me,
and I don't know you. Make sure it doesn't leave the building."[/color]
14 years ago
Posts: 1127
Quote from Toto
ask that in the respective series forum section.
but the manga isnt really popular so i dont think i'll get quick responses
Quote from mewman
eh...so could anyone please explain what is wrong with my question?
is it because i used "all"?
or is my question itself ridiculous(or both)?
dont feel bad ,ignore the sarcastic answers...and btw i really find most of your responses on mu helpful 🙂
14 years ago
Posts: 497
Quote from Scyfon
I have a physics question:
Assuming that it's strong enough and there are no obstructions, is it possible for a ray of light pointed parallel to the ground to circle the globe and reach its point of origination or would it travel straight out into space?
The thing about light is that it sometimes acts like particles and sometimes like a wave. If I recall correctly, light is made up out of photons, which are quintessentially little packages of light energy that move like a wave but display properties of particles. Because the light energy is concentrated in clusters it can behave like a particle, but because it solely consists of energy it has no matter; therefore, it is not subjugated to the force of gravity. Since light also behaves like a wave, and waves always fluctuate around a straight axis, light always travels in a straight line.
So, the answer to your question would be that it is not possible for a ray of light to be parallel to the ground and circle the globe 🙂 .
14 years ago
Posts: 176
Quote from WandereroftheDeep
Quote from Scyfon
I have a physics question:
Assuming that it's strong enough and there are no obstructions, is it possible for a ray of light pointed parallel to the ground to circle the globe and reach its point of origination or would it travel straight out into space?The thing about light is that it sometimes acts like particles and sometimes like a wave. If I recall correctly, light is made up out of photons, which are quintessentially little packages of light energy that move like a wave but display properties of particles. Because the light energy is concentrated in clusters it can behave like a particle, but because it solely consists of energy it has no matter; therefore, it is not subjugated to the force of gravity. Since light also behaves like a wave, and waves always fluctuate around a straight axis, light always travels in a straight line.
So, the answer to your question would be that it is not possible for a ray of light to be parallel to the ground and circle the globe 🙂 .
yah those were some more or less accurate statements^^ but the bottom line is still correct, for the earth the light (you can imagine a laser beam) would go straight into space.
the big mistake in the above expl. howerver is that just because its energy, doesnt mean it doesnt have a mass (as long as the photon moves but thats a lil too difficult right now)..anyways the point here is E=mc^2....
and light interacts with gravity.thats the whole point of a black hole...so much gravity that light cant escape.
of the top of my head i,d say theoretically if your planet is massive enough you can realize a circle around it, you should even be able to calculate the exact mass, in relation to radius that it needs...
14 years ago
Posts: 497
Quote from Pocono
Quote from WandereroftheDeep
Quote from Scyfon
I have a physics question:
Assuming that it's strong enough and there are no obstructions, is it possible for a ray of light pointed parallel to the ground to circle the globe and reach its point of origination or would it travel straight out into space?The thing about light is that it sometimes acts like particles and sometimes like a wave. If I recall correctly, light is made up out of photons, which are quintessentially little packages of light energy that move like a wave but display properties of particles. Because the light energy is concentrated in clusters it can behave like a particle, but because it solely consists of energy it has no matter; therefore, it is not subjugated to the force of gravity. Since light also behaves like a wave, and waves always fluctuate around a straight axis, light always travels in a straight line.
So, the answer to your question would be that it is not possible for a ray of light to be parallel to the ground and circle the globe 🙂 .yah those were some more or less accurate statements^^ but the bottom line is still correct, for the earth the light (you can imagine a laser beam) would go straight into space.
the big mistake in the above expl. howerver is that just because its energy, doesnt mean it doesnt have a mass (as long as the photon moves but thats a lil too difficult right now)..anyways the point here is E=mc^2....
and light interacts with gravity.thats the whole point of a black hole...so much gravity that light cant escape.
of the top of my head i,d say theoretically if your planet is massive enough you can realize a circle around it, you should even be able to calculate the exact mass, in relation to radius that it needs...
Photons have zero mass and rest energy; that's what we were taught, and it also says so here: [url]http://physics.about.com/od/lightoptics/f/photon.htm[/url].
I'm not an expert on quantum physics, but I remember my teacher saying that according to E=mc² teleportation should be possible.
About black holes...they are capable of distorting space and I won't deny that they can even trap light; I think it has something to do with Relativity theory 🙄 .
