The only new CompSci building at the Uni I know of, is the one next to my department (Physics). But it gives me the creeps to tell what it is called, and by whom it has been sponsored.
Smaller transistors are faster, with Intel claiming the device could
eventually pave the way for science fiction technology such as
instantaneous, real-time voice translation.
Somehow I can't see how the speed of the transistors can help
with the fact that you usually have to wait until the end of sentences
before translating, you cannot just do it word by word.
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Did you try the link yourself? Have you noticed the 'partners' links don't
work any more, probably because of overuse from/.? It's
'channel.nytimes.com' that works now, but even that might not last
forever.
In general, it's a good idea to test you links before posting, and it can
be done via the preview page. I thought this would be obvious...
In case someone missed my other post, the correct link is here.
--
It is true that a measurement will 'collapse' a quantum system into one of
its basic states (ie 0 or 1 in a qubit) when measured. But this has
nothing to do with Heisenberg's principle, which represents an inherent
uncertainty in quantum systems even no measurements are made. It's hard to
explain in simple terms, but many/. readers know Fourier Transforms so
here goes. In QM, the momentum representation of a particle is the FT of
its position representation. Any attempt to define the position
accurately (making the
wavefunction a narrow peak) will make the function wider momentum-wise,
and
vice versa. The effect of disturbing the system by measurement is a
completely different postulate of QM.
As of the practical use of qubits, attempts have been made to increase the
'relaxation time' of the system, so that the quantum state is preserved
for a while even when it is connected to outside world for measurement.
Currently, for superconducting loops (see my other
comment)
this is less a microsecond, but might be useful for some computation.
Even when we have working quantum computers, the data will probably
be stored
in conventional memories. The real use of these qubits is in certain kinds
of computation. IIRC the RC5-56 challenge would be solved in a matter
of minutes.:-)
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Josephson junctions attached to a high temperature superconductor will
work at liquid nitrogen temperatures.
Provided the superconductor
will work at that temperature:-). A Josephson junction is nothing more
than a thin layer of insulator between two superconductors, usually some
oxide. But interesting things happen because of the superconductivity.
Current can flow across the junction without any voltage, if there
is a phase difference in the quantum mechanical wave function that
describes the motion of the electrons. This phase difference accounts for
most of the weird phenomena in these loops.
--
Superconducting loops with Josephson junctions seem much more promising
candidates for quantum bits, where the 0 and 1 states are represented by
opposite currents. Quantum superpositions of these currents - can you
imagine current flowing both clockwise and anticlockwise simultaneously! -
have been observed in numerous experiments, some (technical) links are here
and here.
The difficult part is that superpositions, which are the key requirement
of
qubits, are inherently destroyed when measurements are made. But some
experiments, like the above, manage to sustain the superposition for a
significant time, because the system is only weakly coupled to the
measuring instruments.
--
If it was hooked up into your brain (as in "This might feel a little
weird" --Morpheus), why would you need some cumbersome retinal projection?
On the other hand, on such a wetware-embedded system I'd like as much
memory/HD as possible. That is one thing where we could all use some
augmentation. Of course a FPU for all the boring math would come in handy,
but the point is, these beasts are particularly poor in terms of storage
capacity.
Deep beneath the trolling waves this guy's got a point. Does
reproduction still
have the highest priority, like it was three billion years
ago when we were floating in primordial ooze, or have we
undergone any spiritual development?
On the other hand, as our friend Dustpuppy put it (on
Xmas, but applies equally well now):
I guess I still don't quite get it. If you're nice to people and show your
family you love them all of the time, this day wouldn't have to stick out
like a sore thumb, right?
BTW, it took us about 5 hours to get that file to print
Reminds me of the Mandelbrot set and raytracing images I've seen written
in.ps. As it takes a while to render those on my K6, I wonder what the
old printers at our college would think of them..
Which is meant for advanced users after learning how to strip, touch,
finger, fsck,...
--
They are researching this already
on
Plastic Valley?
·
· Score: 3
Cambridge Display Technology has
done research on these 'printed circuits' for a couple of years now. One
of the founders, Dr. Richard Friend, has been one of my lecturers and I
once discussed the future of polymer computing with him over a pint:-).
They look for printing as a cheap manufacturing technique of polymer
displays. I asked Friend if polymers could take over silicon in other
areas of electronics like CPUs, he said they would be far too slow for
that. But maybe some day..
Anyway, the polymer displays look interesting, for one thing the viewing
angles are not limited at all. And imagine a tiny laptop with a decent
sized roll-up display..
You'd be better off running separate instances of s@h on each processor
(yes, even on one multiprocessor box). The project has already been
designed to be distributed on many computers, so there would be no benefit
trying to run a single instance in parallel. In addition, there would be
some overhead due to clustering anyway.
Disclaimer: I'm a third year undergraduate of physics. (We just started a
course on quantum optics today, this discovery makes it even more
interesting:-)
According to Heisenberg it's impossible to simultaneously measure the
exact position and momentum of a quantum particle. However, it is possible
to recreate a quantum particle exactly, without its properties being
measured. Theoretically this enables quantum teleportation, 'beaming up'
of even complex systems such as humans.
We really shouldn't call these sequels. The Wachowski brothers had the
most amazing idea and they realized it cannot be squeezed into just one
movie, it would have to be a trilogy. Think of Back to the Future or
the original Star Wars for analogy.
The only difference to these trilogies is that the W brothers weren't sure
if their idea is good enough for taking the chance, or they didn't have
the funding anyway, so they only made the first part to start with.
Slashdot Mirror
William Gates Building. No kidding.
--
"Against stupidity, the gods themselves contend in vain."
--
Light frequencies are hundreds of terahertz.
--
Somehow I can't see how the speed of the transistors can help with the fact that you usually have to wait until the end of sentences before translating, you cannot just do it word by word.
--
True, there can be 0.9GHz components in the data when the clock frequency is 10GHz, but that could be a problem even with present processor speeds.
In case I'm completely wrong, please correct me :-)
--
In general, it's a good idea to test you links before posting, and it can be done via the preview page. I thought this would be obvious...
In case someone missed my other post, the correct link is here.
--
here.
--
As of the practical use of qubits, attempts have been made to increase the 'relaxation time' of the system, so that the quantum state is preserved for a while even when it is connected to outside world for measurement. Currently, for superconducting loops (see my other comment) this is less a microsecond, but might be useful for some computation.
Even when we have working quantum computers, the data will probably be stored in conventional memories. The real use of these qubits is in certain kinds of computation. IIRC the RC5-56 challenge would be solved in a matter of minutes. :-)
--
Provided the superconductor will work at that temperature :-). A Josephson junction is nothing more
than a thin layer of insulator between two superconductors, usually some
oxide. But interesting things happen because of the superconductivity.
Current can flow across the junction without any voltage, if there
is a phase difference in the quantum mechanical wave function that
describes the motion of the electrons. This phase difference accounts for
most of the weird phenomena in these loops.
--
The difficult part is that superpositions, which are the key requirement of qubits, are inherently destroyed when measurements are made. But some experiments, like the above, manage to sustain the superposition for a significant time, because the system is only weakly coupled to the measuring instruments.
--
On the other hand, on such a wetware-embedded system I'd like as much memory/HD as possible. That is one thing where we could all use some augmentation. Of course a FPU for all the boring math would come in handy, but the point is, these beasts are particularly poor in terms of storage capacity.
--
On the other hand, as our friend Dustpuppy put it (on Xmas, but applies equally well now):
I guess I still don't quite get it. If you're nice to people and show your family you love them all of the time, this day wouldn't have to stick out like a sore thumb, right?
--
Reminds me of the Mandelbrot set and raytracing images I've seen written in .ps. As it takes a while to render those on my K6, I wonder what the
old printers at our college would think of them..
--
Well if it ain't our old friend Dust Puppy!
--
Exactly. A glitch in the Matrix when they change something. ;-)
--
I.e. if I'm running at half the speed you are, does it make me faster than you by 50%? Maybe not.
--
Which is meant for advanced users after learning how to strip, touch, finger, fsck, ...
--
They look for printing as a cheap manufacturing technique of polymer displays. I asked Friend if polymers could take over silicon in other areas of electronics like CPUs, he said they would be far too slow for that. But maybe some day..
Anyway, the polymer displays look interesting, for one thing the viewing angles are not limited at all. And imagine a tiny laptop with a decent sized roll-up display..
--
You'd be better off running separate instances of s@h on each processor (yes, even on one multiprocessor box). The project has already been designed to be distributed on many computers, so there would be no benefit trying to run a single instance in parallel. In addition, there would be some overhead due to clustering anyway.
--
a story on /. about Beowulf clusters without the unavoidable puns?
--
According to Heisenberg it's impossible to simultaneously measure the exact position and momentum of a quantum particle. However, it is possible to recreate a quantum particle exactly, without its properties being measured. Theoretically this enables quantum teleportation, 'beaming up' of even complex systems such as humans.
--
Its not that Rama isn't viewer friendly, its just more picky about who its viewers are.
--
A filesystem is also an interface to a flat file. /dev/hda1 is a file with
a fixed size and FS is a method of organizing different files inside it.
--
The only difference to these trilogies is that the W brothers weren't sure if their idea is good enough for taking the chance, or they didn't have the funding anyway, so they only made the first part to start with.
--
Below 1K, it would certainly be cool.
--