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Posts posted by imatfaal


At the moment it is just a vague idea by a designer rather than an engineer. I get the impression that the Nokia name is purely hype by the designer ("The Nokia ECu phone, which borrows the Finnish phone giant’s moniker for its name and logo")  and frankly I cannot see Nokia or anyone else making this work. Thermogenerators are pretty inefficient, need higher temperatures, and just wouldn't produce enough juice.
wired article http://www.wired.co.uk/news/archive/201010/07/conceptbodyheatphone
designers blog http://patrickhylandproductdesign.blogspot.com/2010/10/nokiaecuconceptnokiaecuefor.html#comments
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Lemur  why is all bullying a speech act? A significant proportion of bullying is nonverbal. Additionally, not all speech acts are necessarily constitutionally/state protected actions under a freedom of speech provision. Freedom of speech laws tend to operate by removing barriers to expressing one's opinions  they very rarely act by allowing all speech (as Marat pointed out above). I do not know of any freedom of speech legislation that does not preclude intimidatory speech (either implicitly or explicitly)  but that does not render the legislation a dead letter.
The expression of a political opinion is normally the very object that is protected by freedom of speech legislation and I cannot see how antibullying legislation will affect this  you seem to be equating the expression of a differing viewpoint as potential bullying which will be trammelled by new legislation. To say that A disagrees with B is by no means equivalent to saying A is bullying B. Of course, at the limit this disagreement may transcend the debate and become oppressive; but for it to become bullying is possible to envisage but unlikely outside imagination. Anyhow, at that point the bullying legislation would come in and freedom of speech might be limited.
0 
We need to take all of the predictions of water and goldilock's zone with a massive pinch of salt  I heard Prof Andrew Fitzsimmons on the radio a few days ago trying to calm the media hype. "the signal is around the same level as the noise, as the uncertainty"  "it needs work to be positive that the planet actually exists"  "water: complete conjecture". The exciting part is that of the nearby stars surveyed we have now found two very distinct possibilities for rocky planets in fairly near orbits  hopefully we will find one soon that transits across the face of its star and we can get an idea of hte atmosphere
0 
I would go with Dog as well. Strange snout and balance of front legs/back legs however. I tend to envisage dogs with shoulders and hips equal or shoulders higher / more massive. Here is a list of floridan mammals http://en.wikipedia.org/wiki/List_of_mammals_of_Florida
0 
I think Lemur is correct in asking
What is the underlying strategy of your writing?0 
But IIRC the drop size from a pipette is governed by the outside diameter of the tip and the surface tension of the liquid  and I think therein lies the reason for Mr Skeptic's question. If you are measuring the liquid with an accurate volume measure or doing the whole experiment on an accurate scale then fine. But you need to get rid of surface tension as part of your known variable measurement if it also makes up part of your question
0 
326,
I think Hawking originally said that the information was retained in new black holes in baby universes  but has retreated from that position and now believes that the information is retained within this universe. Susskind, I think, was responsible for the string theory development that AJB referred to.
0 
Boboe  not sure about why you would call your first idea Density, it seems to be a measure of occupancy, and a slightly strange one at that. Personally I would say the rug occupies area_rug/area_floor and not any form of the square root.
I think you also need to engage with lorenz boosts rather than just time dilation. Both x and t are transformed by lorenz boosts in a very similar way (x' = (xvt)gamma and t'=(tvx)gamma  but they are not the same.
The second formula you give is not an equation  as you give it, but does seem to be the factor for calculating proper time through gravitational time dilation. The major question is  why can the two equations for time dilation due to velocity and time dilation due to gravitational effects not coexist? You state they cannot  but dont give a reason.
Not sure about your problem with mass  a kilogram can be viewed as a multiple of the planck mass which is formed from the fundamental universal constants. Many properties of matter do not have maximum finite values.
Gravitational effect time dilation has, i believe, been verified in many everyday situations  if it is incorrectly formulated you need to show why experimental data fits.
2 
This question has taxed the greatest minds  Stephen Hawking and Kip Thorne had a long running and public bet with John Preskil on whether information was lost or maintained (hawking said lost, preskill maintained.) Hawking has paid up and he now believes that the information is retained within the universe. I don't believe the solution has been found yet; although a group claimed to have done so a few years back.
0 
Further to cypress; could I suggest a thought about units of resistivity and how they come to be what they are.
0 
I prefer to use Euler's Matrix because you can use it to multiply any two numbers and it's easy to check for mistakes.
Could you run that method past me  I only know Euler Matrices as the result of a three dimensional rotation. I hope there is some other Euler Matrix  cos long multiplication is easier for two digit numbers than messing around with Euler Angles/matrices
0 
And conclusions drawn from heresay, which is a euphamism for conjecture
is this a dastardly combination of heresy and hearsay?
Michel and RMW  if you have access to JSTOR then you can find thomas youngs original write up here http://www.jstor.org/pss/107135 . the later experiments showing destruction of the interference when pathway is known are easier to find. And whilst we must be careful to avoid anecdotalism and defending the paradigm merely for its own sake; we must also acknowledge that science is enabled by "standing on the shoulders of giants". QM is remarkably well evidenced, and rigorous.
0 
Hello Wick, not sure which angles you mean. The angle of the two surfaces where they touch is by definition zero. I understand the setup (I think) just not sure of the question
0 
I had always assumed that the extended life in science fiction was merely that the author presumed that by the point in history that we become spacefaring we will be better at preventing and curing disease and possibly have some form of gene therapy to combat natural ageing in our genes (telomere extensions or some such) whilst avoiding cancer. Everything I have heard about life in zero gravity tallies with above posts that it is not particularly good for you.
0 
I think this problem is the same as arranging the points in a nice symmetric pattern; ie around the edge of circle  and it is much easier to visualize the relations
If you imagine numbering each point 1,2,..n around the circle then a triangle of a single colour is formed when you complete an entire circuit in three legs (ie from point 1 to point 4, point 7 and back to point 1 again). Alternatively you can see this triangle as a journey around in which the total steps add up to n. Example for seven points 1 to 2 to 4 to 1 is three legs making a triangle and the steps (1+2+4 = 7) add up to number of points. With point in a circle and always counting in same direction all triangle must have journey steps adding to total number of points.
It is quite easy to show that stars (and possibly a diagonal that halves the shape) that are made from moving a fixed number of steps around the circle will only make a triangle when (total number of points)/(step size) = 3. Similarly it is just a matter of adding three numbers to show that two stars overlaid will not make a triangle iff no threestep combination of their (step size) equals the (total number of points).
worked example 14 points
steps possible 1 (clockwise) = 13 (anticlock wise)
1,13
2,12
3,11
4,10
5,9
6,8
7,7
these can quite easily be divided into three groups/colours (7,7 6,8 5,9) (3,11 2,12) (4,11 1,13) within these groups no combination of 3 steps makes 14  there are no triangles formed vertices at points and sides of same colour. Ie there is no 3combination of 7,7 6,8 5,9 that equals 14, similarly with other two groups. Once all possible steps have been placed it is clear that every point is linked to every other point.
For all n from 3 through to 14 this works and at least one formation produces no triangles of one colour (with a little shenanigans for n=6,9,12). For n=15 this Does NOT work. I will continue to think and see if I can find a way to show that 15 is not possible in any method. I will also draw up a nice illustration.
Matthew  convinced that this is a dead question on a dead post , but still quite interested in it
proof that 14 points can be linked (with links of 3 different colours) and no triangle with vertices at points is made of a single colour
0
Bullying and Freedom of Speech
in Ethics
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