| 'Universal Manipulator Does Chess' | Preferences | 136 comments | Search Discussion |
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Heh... (Score:1,
Funny)
by Anonymous Coward on Tuesday July 31, @06:38PM EDT (#2)
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I used to do this with little rubber Kinniku men
on a little vibrating wrestling platform with my friends... (that
didn't sound good...)
Before that, there was a little
football game that did the same type of thing.
This is
cool?
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Wow... (Score:2)
by
JohnnyKnoxville on Tuesday July 31, @06:42PM EDT (#6)
(User
#311956 Info) |
a game of chess that plays itself. Doesn't that
defeat the purpose of playing chess? Next up, self watching
TV...
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- Re:Wow...
by phantumstranger (Score:1) Tuesday July 31, @07:03PM EDT
- Re:Wow...
by grammar nazi Tuesday July 31, @07:16PM EDT
- Re:Wow...
by Anonymous Coward (Score:1) Tuesday July 31, @08:22PM EDT
- Re:Wow...
by terrymah (Score:1) Tuesday July 31, @09:42PM EDT
- Re:Wow...
by Anonymous Coward Wednesday August 01, @06:32AM
EDT
- Re:Wow...
by BLAMM! (Score:1) Wednesday
August 01, @10:04AM EDT
- Re:Wow...
by dr_labrat (Score:1) Tuesday
July 31, @07:52PM EDT
- Re:Wow...
by clem (Score:1) Tuesday July
31, @11:23PM EDT
- Already
have that by Anonymous Coward Wednesday August
01, @03:58AM EDT
- Re:Wow...
by Anonymous Coward Wednesday August 01, @04:42AM
EDT
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How about some magnets
(Score:1)
by Tarkwyn (slashdotorg@bucketoffish.com) on Tuesday July 31,
@06:42PM EDT (#7)
(User
#130064 Info) |
Cool - How about putting some magnets in each
piece and then disabling the magnet as the piece is about to move.
That way only the moving piece is, well, moving?
--
Tarkwyn. |
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remember the football game?
(Score:0)
by Anonymous Coward on Tuesday July 31, @06:42PM EDT
(#8)
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does this remind anyone else about the vibrating
plate with the small football players that would endlessly go in
circles? That would really piss me off.
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Videos (Score:2)
by OnyxRaven (onyxpenguin@yahoo.com) on Tuesday July 31,
@06:45PM EDT (#10)
(User
#9906 Info) http://www.onyxraven.org/
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I'd like to see some better videos of the
movement and maybe some information on the other equipment. The
videos are of such high-compression that they look to be faked
already (though it is apparent that lots of compression is being
done)
problem is I can't forsee any real practical
application of this technology (item sorting is great, but why do it
this way? sure, for HazMats it _might_ be useful, but looks
extremely complicated.)
--onyx-- |
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Re:Videos
(Score:5, Interesting)
by chialea (chialea@hotmail.com) on Tuesday July 31,
@06:51PM EDT (#16)
(User
#8009 Info) |
The movies aren't faked. I used to work
for the same professor (John Canny), and I saw the table in
action. It's pretty cool stuff, though it could go a lot
farther with some more math work on the field created.
Yes, the table is real. Yes, it works. Yes, it could
be better. This is research... this is expected!
Lea
(who used to work on cs theory and robotics, and now works
on cs theory and crypto)
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- Re:Videos
by Anonymous Coward Wednesday August 01, @01:27AM
EDT
- Re:Videos
by chialea (Score:1) Wednesday August 01, @11:35AM EDT
- Re:Videos
by jovlinger (Score:2) Wednesday August 01, @12:16PM EDT
- Re:Videos
by Anonymous Coward Tuesday July 31, @07:36PM EDT
- they
look fake as hell by ArchieBunker (Score:1) Tuesday July 31, @08:22PM
EDT
- It's
Fast Motion... here's proof. by M3shuggah (Score:1) Tuesday July 31, @09:06PM
EDT
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Most Profitable Industrial
Application is ... (Score:2, Funny)
by Sydney Weidman (weidmans@mts.net) on Tuesday July 31, @06:45PM
EDT (#11)
(User
#187981 Info) |
Sex Toys, of course.
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Misleading (Score:1)
by
sharkey
(die_goober@spambait.hotmail.com) on
Tuesday July 31, @06:46PM EDT (#12)
(User
#16670 Info) http://www.act1.net/users/seth
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from the good-girls-from-bad dept.
None of the links provided had to do with good girls, or bad
girls. And I was ready to get excited, too.
--
"Outlook
not so good." That magic 8-ball knows everything! I'll ask about
Exchange Server next. |
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Uh Oh... (Score:3,
Funny)
by phantumstranger
(who@what.org) on Tuesday July 31,
@06:47PM EDT (#14)
(User
#310589 Info) |
| Deep Blue + UPM = an even more frustrated Kasparov? Do
you think he would give the finger as he stormed out of the
building? Do you think the machine would give one back?
I'd watch just to find out.
"From of old, there are not lacking things that have
attained Oneness." - Lao Tzu
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- Re:Uh
Oh... by complex (Score:1) Tuesday July 31, @11:58PM EDT
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Ok, I think I know..
(Score:3, Funny)
by (H)elix1 on Tuesday July 31, @06:58PM EDT (#19)
(User
#231155 Info) |
what you would use it for - to fill in the
"further funding is required" checkbox on a grant....
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Why do people get so
interested (Score:5, Interesting)
by perdida (revlucion@journaSPAMlist.com) on Tuesday July 31,
@07:00PM EDT (#20)
(User
#251676 Info) http://www.indymedia.org/
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when computers and machines do humanlike tasks
such as basic sorting of real world objects...
and they
don't get all hot and bothered when they do non-machine like tasks,
such as lifting big cars and things?
Robots that walk like
people, human facial expressions on computer-graphics simulation..
they all generate so much interest among technical people.
Perhaps, not being a technical person, I am more interested
in the great alienness of machines. I am interested in earth movers
at mines; the Big Dig in Boston; construction cranes; auto assembly
lines; mainframes; enterprise-class servers; billion dollar
electronic fund transfers.
The replacement of humans in
industrial processes with machines has always been an object of
industrial design. The assembly line replaced the guild style craft.
Instead of creating little portable machines that aided the
watchmaker and the bootmaker in their old craft methodologies,
inventors remade the ways of creating goods; those guild methods
were replaced by roboticized methods of manufacture.
I would
rather see a chip in the head of the watch maker that gives him
eagle eye vision, or an augmentation of intelligence or emotional
sales skills in a salesperson, than something that would eliminate
these people from their industries.
This is what democracy looks like |
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Electric NFL Football...
(Score:0)
by Anonymous Coward on Tuesday July 31, @07:02PM EDT
(#21)
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The bow-tie demo on the original inventor's
webpage is most impressive.
This stuff reminds me of those
old vibrating playfield football games from when I was a
kid.
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Neil Aldrin? (Score:3,
Funny)
by Anonymous Coward on Tuesday July 31, @07:07PM EDT (#25)
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Are you sure it wasn't Buzz Armstrong?
:)
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I don't understand
(Score:5, Informative)
by coupland
($me="geek@"."whengeeksattack.org";) on
Tuesday July 31, @07:15PM EDT (#30)
(User
#160334 Info) http://www.whengeeksattack.org/
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I hope someone who understands robotics better
than me can explain -- what is so special about this device? I saw
the chess and poker chip demos and I was impressed, but the same
could be accomplished using a robotic arm, probably in less time.
Can someone in the know explain the import of this technology? I'm
sure it exists but I haven't read enough on the topic to see it
plainly...
---
I'm not paranoid. But everyone thinks I
am... |
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- Re:I
don't understand by Anonymous Coward Tuesday
July 31, @08:02PM EDT
- Re:I
don't understand by darrylg (Score:1)
Tuesday July 31, @08:19PM EDT
- Re:I
don't understand by Lostman (Score:2)
Tuesday July 31, @08:35PM EDT
Re:I don't
understand (Score:5, Insightful)
by jetpack (wrgcnpx@ubhfgba.ee.pbz) on Tuesday July
31, @08:40PM EDT (#64)
(User
#22743 Info) |
| Well, I used to work for a prof that did
research in this area. That was five years ago, so I'm way
out of date, but hopefully I can give you a bit of insight.
A big use for this kind of thing is for part
feeding, that is a method of orienting parts on an
assembly line. There is mention
of this on Dr. Resnik's web page. Basically, you have the
problem of presicely orienting a whole whack of (possibly
complicated) parts as fast as you can to present them to the
next stage in an assembly process.
Yes, a robot can accomplish this, but because of the
motion that is involved they are slow, and because of the
optical recognition involved they can bit, uh ... touchy :)
One method of dealing with part orientation is by things
called bowl feeders. They are a bit hard to describe in
type, but imagine that you have a big steel drum with a
spiralling track up the inside of the drum. By vibrating the
drum you can make the parts you are trying to orient climb
up the track (beleive me, this sounds wierd, but it actually
works). By changing the shape of the track you can force
incorrectly oriented parts to fall back into the bowl, thus
filtering out parts that are correctly oriented. So, only
parts that are correctly oriented arrive at the top of the
drum.
It's not quite as simple as that, but that's the general
idea. Now, as well as this works (when it works), the
problem is that whenever you change the shape of the part,
you need to build a new bowl feeder! And building these
things is not simple (or cheap).
I beleive what Dr. Reznik is trying to do with this
experiment is not to prove that you can move poker chips
around, but that you can build a programable
solution to this problem; you can build one machine that
will sort anything, given the correct programming of the
controllers, thus alleviating the cost of prototyping things
like bowl feeders.
So, to my mind, it's actually pretty spiffy, despite what
others are saying here.
I know I've left out some details, and I certainly
haven't researched Dr. Reznik's work, but hopefully I've
given you (and some of the /. detractors) some idea where
this work is probably headed.
The only thing I find a bit perplexing is, if he is
proceeding towards the end that I've described, is how he is
going to do this in three dimensions. Sure, he can rotate
things in two dimensions, but what about more complicated
parts?
I should also add that watching one of those bowl feeders
in action is actually pretty creepy at first. Parts move up
the track, but nothing else seems to be moving (the
vibration rate is quite high, so you don't really see it).
Mind you, they are freakin loud :)
run my email address through rot13
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- Re:I
don't understand by Danilo Rezende (Score:1) Wednesday August 01,
@01:26AM EDT
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OK enough is enough
(Score:1)
by Uttles
(uttles@hoe.wide.world) on Tuesday July
31, @07:18PM EDT (#33)
(User
#324447 Info) http://personal.atl.bellsouth.net/atl/u/t/uttles/TOM/
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Don't you think it's time we stop slashdotting
these researcher's websites? Please mirror these things before you
go posting links like crazy. These people don't have enough time or
money as it is, I don't think we should add to their headache by
crashing their servers.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Let
me go back and face the perils! |
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Possible applications?
(Score:1)
by MikeyNg (mikeyng@SPAM-MUSUBIhotmail.com) on Tuesday July
31, @07:39PM EDT (#40)
(User
#88437 Info) http://www.ugcs.caltech.edu/~mikeyng/
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People are correct in saying that robotic arms would be able to
move bigger objects and is probably a cheaper solution. Apparently,
UPM allows movement of more than one object at a time in a
small area. If you have a robot arm, let's face it: you need room
for it to move. This may be room that you don't have.
Having said all that, I still don't know exactly what real world
applications this may have. Would it be used to sort drugs? Maybe
someone can think of a good reason to move multiple pieces of
something at the same time. This is somewhat exciting, but we're
years away from any practical application, especially since I can't
even begin to think of one. :)
.sig your face |
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Re:Possible
applications? (Score:5, Informative)
by danyelf
on Tuesday July 31, @08:32PM EDT (#61)
(User
#449491 Info) |
Ok, first the full disclosure. I'm a
grad student who worked with both John Canny (the advisor
involved) and Dan Resnik (the builder of this cool device).
http://www.cs.berkeley.edu/~jfc/
The objections that
I'm seeing seem to be of the following:
* "It's not
real--the videos are fake."
No, it's real. The basic
principle is this: if you take a table and shake it, stuff
moves a little. If you shake it in a different direction,
stuff moves in a different direction. Dan has figured out a
pretty cool way of quantifying all this. He does a vector
addition of several different shakes, and is able to
therefore target the shaking.
* Why is it cool?
Well, first, because it's not obvious that it works.
This is tricky math.
* Yes, but why THIS?
Because robot arms are a pain, and only manipulate one
thing at a time, and they need a lot of elbow room, and a
lot of motors, and they have to touch things. This requires
four motors that JUST pulse in and out. It works on a flat
table. Nothing touches except the table surface. This would
be perfect for carefully-controlled environments like clean
rooms (where you want to minimize the amount of stuff in the
room), hazardous materials, and delicate objects. There's
very little complexity, and because it's just a bunch of
(tuned) vibrations, you could slap up a new one against a
floor and it works.
The chess demo is just showing
that one can comfortably manipulate a large number of items.
* Does anyone need to sort multiple things?
All
the time. Factory floors separate out rejects from working
models. Recycling centers separate cans from bottles.
Usually, they hire people to sort the stinking messes apart,
and they use clever special-built machines to separate metal
(use a magnet) from glass (heavier than plastic when
crushed) from paper. This sorts on a smooth--therefore
easily cleanable--surface.
Dan now works for Siemens
TTB, who are, among other things, very interested in small
motors.
* My toy did this.
Yes, it did. But it
did it in an extremely constrained way, and it probably took
a really practiced flip of your wrist. And it probably did
it in one dimension. (Dan has a little plastic train set
that works on this principle).
* This eliminates
human jobs
Not necessarily. It could work well in
conjunction with a human job. Why do that annoying
RSI-inducing reach/grab/sort when you can sit behind a desk,
look at a video camera, and tick off the items on a screen?
After all, image recognition isn't too good yet. The machine
is responsible for the reach/grab/sort, and you don't have
to wear a bunny suit.
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Score -1 for this site
(Score:0, Redundant)
by Alan on Tuesday July 31, @07:47PM EDT (#42)
(User
#347 Info) http://arcterex.net/
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I'd love to check out the movies on the demos
page, but they are all wmv. "You must install windows media player"
Well, sorry, I'm in linux and don't have that.
Bah.
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Universal Manipulator Plays
Chess? (Score:4, Funny)
by Ukab the Great on Tuesday July
31, @07:57PM EDT (#47)
(User
#87152 Info) |
If I could manipulate entire universes, I'd find
chess kind of boring.
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Great.. (Score:1)
by
niloroth on Tuesday July 31, @08:00PM EDT (#49)
(User
#462586 Info) |
yet another machine that will be able to beat me
at chess.
If You Can’t Dazzle Them With Brilliance, Riddle Them
With Bullets |
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The "jet" (Score:4,
Interesting)
by Animats (slashdot-replies@downside.com) on Tuesday July
31, @08:16PM EDT (#54)
(User
#122034 Info) http://www.animats.com/
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| That's very impressive. I'd have thought that
impossible.
Recognize what they're doing. They're vibrating a rigid plate in
such a way that one object, out of many, moves. The system that
drives the plate can produce both small rotations and translations.
The vibrations have arbitrary waveform, and are generally
asymmetric. It's the asymmetry that produces motion. That's all.
I could see this working for two objects, because you could
vibrate the plate such that the center of rotation was under the one
you didn't want to move, so it didn't go anywhere. But I had no idea
how they make this work for N objects.
The novel result in the thesis
is section 6.1. Figure out how a "jet" vibration works, and you'll
understand the whole thing. The basic idea is that a rotational
vibration centered on the point at which motion is desired is
superimposed on a translational vibration in the desired direction
of travel. When both vibration functions are suitably chosen,
there's a very unexpected property: the feeding velocity is small
everywhere except near the center of rotation.
This is counterintutive. You'd expect the rotational effects to
be biggest far from the center of rotation, and zero at the center
of rotation. Apparently the idea is that the forces induced by
rotation interfere with the translational vibration that makes
objects move. What puzzles me is that they're able to achieve zero
feeding motion over most of the entire plane. But look at figure 6.2
in the thesis, showing the jet field.
That's really neat. But I don't get it intutively yet. Can
anybody else explain it more clearly?
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Not only in windows media format,
READ PEOPLE! (Score:4, Informative)
by sanemind (spamme@rhodes.mine.nu) on Tuesday July 31,
@08:18PM EDT (#55)
(User
#155251 Info) |
Yeesh. Normally I wouldn't bother posting this,
but I've read 4 comments about how the propriatary bastard is
offering the videos only in windows media format! Good lord. Read a
little further. It's in good ol' MPG1 too.
They clearly only
are posting in windows media because it uses so much less bandwidth.
Actually windows media uses MPG4 as it's underlying implementation,
which you can play in linux anyway if you really care to. Yeesh!
---
the pen is mighter then the sword. the sword is
mighter then the court. the court is mighter then the pen. |
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Finally, the answer I've been
waiting for! (Score:1)
by Anonymous Coward on Tuesday
July 31, @08:50PM EDT (#65)
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As a kid, I always hated that damn football
game. I'm a nerd, so of course real football is out of the
question... but playing the stupid board game, my quarterback ALWAYS
ran in the wrong direction. I almost think my brother found a clever
way to cheat. But thanks to the wonders of technology, not only will
he run in the right direction, he can also dodge and weave around
the defensive player that the dog chewed the head off of.
As
long as my brother's pieces still move randomly, this is ultra
cool.
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Oooh. Ahh. Uh uh...
(Score:3, Interesting)
by Greyfox (nride@uswest.net) on Tuesday July 31, @09:00PM
EDT (#66)
(User
#87712 Info) http://www.flying-rhenquest.net/
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I find most of the applications in the original
article a bit forced. Self setting tables (Assuming you do 95% of
the work and move the dishes to the table and chuck them down
anywhere.) Conference room tables that serve coffe (Again, assuming
you do 95% of the work to get the coffee to the table.) The coolest
thing about the chess thing is the piece recognition the computer
does, which a camera is used for. The Post Office application is,
admittedly a bit cooler but for the most part I'm not really
overwhelmed. Just kinda whelmed...
Got Evil? |
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UMI sucks (Score:1)
by
whovian on Tuesday July 31, @09:14PM EDT (#74)
(User
#107062 Info) |
Being at UC-Berzerkley :), does he have to
relinquish his thesis to UMI for publishing? That would be a
shame.
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the poker and chess may not be too
impressive... (Score:2, Funny)
by tetsugakusha
(anything@AignoreXtheElowercase.ORG) on
Tuesday July 31, @09:15PM EDT (#75)
(User
#466747 Info) |
but I bet it would be really good at pinball :D
------
this .sig is umop apisdn |
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Is it just me...
(Score:1)
by jeko on Tuesday July 31, @09:29PM EDT (#78)
(User
#179919 Info) |
| ...am I the only one reminded of those cheesy
"magic fingers" hotel beds?
Think of the new applications.
(No, not those, get your mind out of the gutter, get married for
a few years and rejoin us at the grownups table.)
The bed automatically gives you back your half of the
blanket when your spouse (significant other) steals it.
The bed automatically shakes cookie, cracker, and granola
crumbs out of the bed after your toddler finishes watching
cartoons on your TV.
The bed automatically finds the remote and returns it to the
head of the bed.
Um, well, OK, so the bed would also have ... other uses...
which would probably add to the granola and cookie crumbs in your
bed.
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electric footbal
(Score:1)
by Scrooge919 on Tuesday July 31, @09:41PM EDT (#79)
(User
#188405 Info) |
Kinda reminds me of the old electric football
game where the pieces just vibrated all over the field. Of course,
the damn thing never worked right... :) Maybe after all this time,
some game manufacturer can make an electric football game that
actually works!
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Universal Manipulator Does
Chess (Score:0)
by Anonymous Coward on Tuesday July 31,
@09:43PM EDT (#81)
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I've looked all over the pr0n VHS websites and
all I found was "Debbie Does Dallas", but no "Universal Manipulator
Does Chess". It sounded so promising.
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manipulators (Score:1,
Funny)
by Anonymous Coward on Tuesday July 31, @09:56PM EDT (#83)
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With all these posts about Bill Gates, don't we
have enough articles dealing with manipulators? Let's see something
more positive, please.
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Great! (Score:3,
Funny)
by GiorgioG on Tuesday July 31, @10:15PM EDT (#85)
(User
#225675 Info) |
Now I don't have to get up if I forget my beer
on the other end of the coffee table
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- Re:Great!
by Dr_Cheeks (Score:2) Wednesday August 01, @09:12AM EDT
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Programmability is the key
(Score:2, Insightful)
by Bugmaster on Tuesday July 31, @10:33PM
EDT (#86)
(User
#227959 Info) |
The important fact about this device is not that
it moves poker chips around, or that it can be used to set tables
(what ? anyway), but that it is programmable. Meaning that it
can potentially solve any problem which involves moving multiple
objects to some specific configuration. What do you think is easier
- building a physical robot arm capable of moving 100 objects at the
same time, or writing a computer program using pre-built library
functions ?
>|<*:= |
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Updated videos
(Score:1)
by nalldrin on Tuesday July 31, @10:56PM EDT (#89)
(User
#472465 Info) |
Hi everyone, it's cool to see that my work has
received so much attention. Thanks to Robert Cicconetti, I now have
a video with an overlaid chess-board, so you can see where the
pieces are in the chess game. I also changed the video links to list
the mpeg's before the windows media files since many people didn't
notice that I had mpegs. The reason I have such high compression is
I have very limited web-space. --Neil
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A skeptic (Score:3,
Informative)
by MarkusQ
(concat("MarkusQ",64,"reality.com")) on
Tuesday July 31, @11:55PM EDT (#93)
(User
#450076 Info) |
| Call me a skeptic, but I would have been much
more impressed if they had moved one thing at a time. Instead, if
you watch the video, you see them moving everything on the table at
once, with no real pauses between steps, and most of the pieces in
multiple squares at once. There is also considerable collective
drift. The text speaks of accurate positioning of individual pieces,
but that isn't what I saw.
-- MarkusQ
---------------------------
"DEG DED {DE}F ED CBCA..." (George
Gershwin) |
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- Re:A
skeptic by rabidcow (Score:1) Wednesday August 01, @01:48AM EDT
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I don't get it (Score:0,
Redundant)
by de Selby on Wednesday August 01, @12:13AM EDT (#97)
(User
#167520 Info) |
Can someone please explain what's so impressive
about this?
The plate shakes; several objects move around
randomly. They claim it's intentional positioning, but it doesn't
look like it.
I could do this myself. I shake my table,
things move, and I say "Look! Each is moving on it's own vector!"
Who would disagree?
If they moved only one object, or moved
objects from a specific point to another specific point, things
would be different....
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Move over Deep Blue...
(Score:2)
by quintessent
(quintessent@bigPleaseDon'tSPAMfoot.com)
on Wednesday August 01, @12:35AM EDT (#98)
(User
#197518 Info) |
This machine knows how to sort chess
pieces.
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And how is this exciting?
(Score:1)
by larva on Wednesday August 01, @03:35AM EDT (#107)
(User
#82883 Info) |
What exactly is spectacular news here? i
mean pepole make all sorts of fantastic programs/hardware for their
ph.d, and this is what slashdot features?
Im not trying to
rain on anyones parade or anything, but this is a
non-event.
-- gunzip-howto.tar.gz |
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This is real world
engineering (Score:1)
by ultrasound on Wednesday August
01, @04:15AM EDT (#110)
(User
#472511 Info) |
| What a disappointing reaction from /.
This is real world engineering. It may be trivial to write
software to manipulate objects on a GUI, but this application
requires indirect mapping between vibrating transducers and
deterministic motion of 1 object whilst N objects remain relatively
stationary. Iterate this and you have arbitrary manipulation of
multiple objects in ‘parallel’.
Solving the mapping problem, and building a working demo deserves
some respect. So you can’t think of a decent application
after 30 seconds thought, so it must be useless.
The whole world of manufacturing is based on manipulation of
components to produce a more complex assembly. The Universal
Manipulator provides new method of achieving this and I am sure lots
of applications will be found, because it is easily reprogrammable
without retooling and faster than serial manipulation by a single
positioning device.
As an example, PCB populating involves a whole number of pick and
place motions to position all the components on the board. If all of
the mechanical steps could be replaced by simply dropping all the
components on the board and shaking it for a while, assembly would
be faster and machines would be cheaper and simpler.
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This will completely
revolutionize... (Score:1)
by Voltaire99 on Wednesday
August 01, @05:10AM EDT (#114)
(User
#265100 Info) |
...the vibrating hotel bed industry.
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homer beat you to it
(Score:0)
by Anonymous Coward on Wednesday August 01, @05:22AM
EDT (#116)
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| Apparently, Homer's been doing this for years.
By the time he demonstrated moving a bowl of dip across a coffee
table simply by stomping his foot, he had obviously had quite a bit
of practice. Even Mr. Burns was impressed.
Let's see this contraption land a bowl of dip in your lap.
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The progression of the
industry (Score:0)
by Anonymous Coward on Wednesday
August 01, @09:53AM EDT (#121)
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Wow! And I thought the old-skool bouncing
football men was the epitomy of the vibrating plate!
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Genetic programming to create
optimal movement? (Score:0)
by Anonymous Coward on
Wednesday August 01, @10:37AM EDT (#123)
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Has anyone tried to use genetic algorithm
evolution to find better motion algorithms? It seems like a great
application for them, since you can set up a pretty simple "optimal"
target case (the selected item or items move toward the goal
position and and other items don't move), which you can use to
measure the suitability of the algorithm. Of course, you may get
really sick of puting pieces back in their starting positions until
it comes up with a decent solution... Brett
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Uh .... (Score:1)
by
Greedo on Wednesday August 01, @10:43AM EDT (#124)
(User
#304385 Info) |
I had an electric football game back in the mid
70's that did pretty much the same thing. You set up the pieces,
plugged it in. It buzzed and shaked, and the little guys moved
around. A search for "ELECTRIC FOOTBALL GAME" on eBay turns up lots
of the things.
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Intuitive thinking
(Score:1)
by kmferry on Wednesday August 01, @11:41AM EDT (#127)
(User
#461242 Info) |
The way to think about this intuitively is to
think about your "knowns" in the equation, and how to solve for your
"unknown". Your "knowns" are the following: 1)You have chess pieces
set at initial positions, 2)You know where you want these chess
pieces to go (final positions), and 3)you can get info on the
materials involved as they can act as "dampers", and dampers affect
the vibrations. Your "unknown" is the forced vibration input (i.e.
how fast each motor spins at a given time). For those of you with a
calculus background, you can see that this is a second order linear
equation with constant coefficients ( g(t)=ay''+by'+cy ). Thus you
can set up matrices using Mathcad, etc. to crunch the math...solving
for the motor inputs for each unit of time.
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!(cool) (Score:1)
by
mcgrof
(mcgrof[at]eden[dot]rutgers[dot]edu) on
Wednesday August 01, @12:39PM EDT (#129)
(User
#250521 Info) |
| I'm sorry, but I think the video clearly showed
how un-prepared this UMP was... I saw two pieces move at the same
time, several times...
How about putting Chess pieces on a mattress while people get
their grove on?
mcgrof |
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Re:Neil Aldrin
(Score:2)
by zyqqh on Tuesday July 31, @06:58PM EDT (#18)
(User
#137965 Info) |
I've met the guy. The name is not a random
coincidence =)
// zyqqh |
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Re:In Windows Media Player
format? (Score:0)
by Anonymous Coward on Tuesday July 31,
@07:27PM EDT (#36)
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Yes. It's secret for everyone except the 90% who
use a real OS.
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Re:In Windows Media Player
format? (Score:0)
by Anonymous Coward on Tuesday July 31,
@07:40PM EDT (#41)
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Grow up.
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It's in mpg1 too,
sillyhead! (Score:1)
by sanemind (spamme@rhodes.mine.nu) on Tuesday July 31,
@08:15PM EDT (#52)
(User
#155251 Info) |
Look at the page a little more carefully before
you complain.
---
the pen is mighter then the sword. the
sword is mighter then the court. the court is mighter then the
pen. |
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Re:Add some voice recognition . .
. (Score:1)
by -Nails- on Wednesday August 01, @01:49PM
EDT (#131)
(User
#135059 Info) |
Wow I'm honored that my comment pissed off some
moderators enough to get marked as flamebait. Oh wait don't tell me
there are quadriplegic moderators out
there.
-Nails-
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11
replies beneath your current threshold.
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Posted by timothy on Tuesday July 31,
@06:36PM
Universal Manipulator Does
Chess