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It's not so much one or the other. This is cheaper and so more accessible and also represents a sense in a totally different way so it could be useful for other sorts of research like research into the mind, perhaps a test for adaptive sensory intelligence for extended versions of tests like the IQ test. This also contracts to 1D and expands to 3D and 4D much better than vision does. I would be interested to know more. I suspect that he would not dream using colors or at least not in the conventional way but perhaps have some way of representing distance from an object and what the surface of the object is like. In fact even things we take for granted but probably don't think about much like occlusion may not be such a big thing to him as it is to us.

I suspect you heated it up by accident. Maybe you attached to to a radiator when it was on. You can get NIB magnets that are designed to get hot if you need that. Bashing is not generally a problem as by the time you are hitting it hard enough to do any damage you are chipping bits off the outside. Similarly leaving it near another magnet is not a problem unless you are measuring loss of field strength in decades, you should leave them attached with a metal surface on ether side or in the open if you want optimum lifespan. What is that about current? What was the original strength in the measure "N"?

I propose a program to help the blind see gray-scale images as images. Not just read descriptions of them. While screen readers are good they can't portray how an image really looks, only a description of it. For every pixel in the image a waveform (sound) is created. The x, y positions and Brightness (b) of the pixel change 3 properties of the sound. Possible properties include (phase) a time shift in the waveform perhaps relative to it's frequency, frequency, amplitude, (power) to the power of, squareness, (gap) period of silence between each wave, and resolution. For example x could be phase or gap. y could be frequency. b could be amplitude. The average of the many (resolution in the X direction * resolution in the Y direction) waveforms would then be taken to get the final waveform that then may need its amplitude adjusted to reach the final sound. The final sound would be a continuous sound that would represent in a moment the composition of the image or the moment in a film. A camera could be carried around to get visual based audio feedback of the persons environment. This seems necessary to train the person to understand the sound. Another variation could be x = power. y = squareness. b = amplitude. Another possibility is that post processing could be done on the image before it is turned into sound such as median blur or lowering the color depth.

I made a thread with general exploration of the concept of portals before but now I want to just explore this scenario. I was wondering where to put this but I think that it needs to be explored mathematically to be solved although I would be grateful if explanation would be given as well as mathematics. For this thread what I will be calling portals are 2D areas of space in a 3D environment, they behave physically like an other very thin thing would. They can't bend and are rectangular. They are one sided and the back side is solid, things cannot pass though the solid parts. There are thin edges around the front side much like the frame of a picture, they are also solid. The functional part of the portal is therefore in most of the middle of the front. There are two portals and one of them has the solid parts colored red and the other has the solid parts colored blue. They are linked to one another such that stuff which passes though one seamlessly moves out of the other with momentum and other properties conserved. An observer therefore looking at the two portals with an item half way though one (therefore by definition it would be half way though both of the portals) would see two items. There are many interesting possibilities mathematically such of both were put at 45 degrees from horizontal facing each other and a ball was thrown though one what angle, position and power would it have to be to form a continuous loop. My scenario involves the red portal being moved though the blue one. For the first part we move it only some of the way though, lets say 10%. Certain combinations of the two size dimensions and orientations of the interfitting portals make the portals not fit or get stuck later on and certain combinations work quite well. What would you see through the red portal? Think about it before reading the answer. The answer is you would see the small end of the red framed portal going towards you and the larger end going away from you. You can continue in your mind adding more iterations but it gets complicated. Bear in mind that we are only bending space that exists, there are only two portals there. It is a bit like looking into a mirror. What happens when the red portal goes 40% though the blue portal. The solution potentially becomes more complicated, you will see why if you try and imagine it. Read on until the end before you try this as this is where I ran out of mental power and had to go write a thread about it. Now try 60%. Here we have a problem, in our mental model we seem to be using space that doesn't exist anywhere. As the title suggests names could be imaginary or negative space? EDIT: I would quite like to know if my explanation is no good, the problem is uninteresting, the problem is too hard or you are all still thinking about it. Obviously chaining the size of ether portal or rotating them differently makes the solution much harder and in some cases also opens up more questions.

I don't really understand that but I think you are referring to a shortcut like a teliport. In which case yes. A wall that you can't move though with a bridge over the wall would also achieve the same effect. Only in this example a straight line is still the quickest way of getting between the two points even if it is not possible to take it.

For example?

I was under the impression that 0/0 = 0 and inf and 1

Can you move that around so that "pi =" is on the left? There is also a way involving iterative sin of a number that gets pi.

So it looses gravity but not mass?

Like when you are really drunk? lol, only joking. Could you reword your explanation using the terms "bending of waves" and "quantum" in there somewhere while still staying on the scale suitable for a person and a door.

Please expand

And it wouldn't work if air immediately adjusted to moving things in the same way swimming wouldn't work if water immediately adjusted to moving things, you would fall to the bottom like there was no water there. There must be a more sciency way of putting that.

If matter exits from the ends of the disk of stuff around the black hole and nothing gets back past the event horizon then how does the black hole evaporate? Also it wouldn't seem hot until you touched it and even then you would never get to know how hot it is due to the event horizon rule.

That seems terrifyingly shallow. I certainly enjoy genre's that have originated from very different cultures. I dare say for some that it is mainly a cultural thing though. I feel sorry for them limiting there experience in such ways. I find that very unlikely. It was striking. I wasn't playing, I was just with some morris dancers at the times and they preform outdoors. In both examples there is no way they would have been playing if there had not been a wall between us. After a while in the solo example the player started playing differently, slightly faster and they all ran away, they were unsure before that though, lurching backwards and forwards into and out of there tight cluster and sometimes standing dead still, if they had disliked the sound I suspect they would have moved away from it not scrambled towards it almost stumbling over each other. You may see bulls doing this sort of thing on TV or in certain parts of the world but in england farm cows only ever spread out sparsely across a field and eat grass slowly, the most interesting thing they normally do is supposedly lie down when it is going to rain. On the other occasion we stopped playing and they wandered away to disperse across the field and act much more like cows should. I expect that domestic animals are much less fussed than wild animals by unusual noises. I've never though of a safe environment as being an unnatural one for an animal but I suppose that it is. I never proposed that animals would consider the same sorts of sounds music as humans. Human music varies so wildly depending on taste and it is all designed for the same species, humans. Music has no inherent meaning to humans. Meany adults wouldn't be able to identify all the instruments in a random piece of music. Do non-mammals react differently then or were the experiments only done on mammals? I would like to know some details. I hope the experiments were not biased towards failure. "It seems that the fox did not like it when in the night the speakers hidden in it's burrow suddenly started playing loud dance music". I should think not though, could be interesting. Interesting also as primates have so many intregingly human characteristics.

It seems to suggest that you can't get rid of a black hole after a certain size because it will keep expanding due to absorbing background radiation faster than it evaporates. If new matter is pulled into the black hole from most of the way around except the poles of which matter is ejected at high speed then it seems logical that there is a vortex of some re-absorbed matter coming out of the edge of the output in the poles and into the edge of the input in the side? I find it hard to visualize how this would lead to a black hole that doesn't pull itself apart in the middle.

Sell the iron and buy some gold

Imagine in a theoretical plane design that a wing is mounted to the plane that moves downwards from the plane. The air is compressed under he wing, the molecules of air squashing together pushes the other surrounding molecules and they bunch up resisting the downwards movement of the plane. The wing gets to it's fully downward point and the molecules have time to move around and spread out evenly again at which point the plane will start to fall. An insect would then tilt it's wing and bring it back up with less resistance for another go. A real plane however is simpler. It is moving forward in the air. It's wing is at a constant angle and moves forward, the molecules at the front of the wing can easily slide above and below the wing. The molecules below the wing are compressed (squashed together) and as the molecules don't move instantly (momentum) you get a bunching below the wing called lower pressure and higher pressure due to the same mechanism above the wing and the plane is pulled up, fundamentally by pushing air and having the air push the plane. I understand that mechanism. Is there another plausible one?

So what is it like the absence of heat?

This is not a way of generating electricity. It's just a way of transport that is powered by the sun brining the water to higher placer or in the ocean idea it actually requires some energy to run but is still very efficient.

Except cows I rather have a vested interest in this btw as someone who is madly in love with many types of music it is interesting to further my understanding about it and ask why. Yes, I absolutely agree. I am defining music very loosely. I think they like what the sound signifies as opposed to enjoying the sound itself. The dogs would like any sounds that means there is a person on the other side of the door. Are you suggesting that music is about conditioning to do with emotional states for humans as well? I think it is fair to say that some emotions can only be effectively communicated though music and cannot be communicated well though words.

Nice English channel idea. Zip wires pick up a lot of speed. A bit of energy in lifting the water from the the see as opposed to none from a lake or river but it is still not that much. Could be quite good fun in stormy weather. How are you going to get stuck in the middle?

Go ahead and do some science. I can't as I have no pets. Try not to react to the sounds\music too much yourself as they may pick up on you're response which will pollute the experiment and be responsible with the volume. An earlier poster said there cat likes sca? Tell me more.

Thanks Please note that the following is case sensitive So to put it another way [math]n[/math] = complex number [math]i[/math] = imaginary part of [math]n[/math] [math]r[/math] = real part of [math]n[/math] [math]n = n ^ 2[/math] To do this I must [math]R = r ^ 2 - i ^ 2[/math] [math]I = 2 * r * i[/math] [math]r = R[/math] [math]i = I[/math] And it works :¬)

Yes. That is along the ground but still awesome. Is what I was getting at. Nature does all the hard work of getting the water to the top for you. This should be used more.