Posted by
michael
on from the now-you-see-it dept.
An anonymous reader writes "The BBC are reporting James Dyson's new garden feature, a waterfall with water flowing uphill. Apparently, he wanted to recreate an Escher drawing."
If only antimatter was repelled by gravity. Antimatter is just normal matter with reverse charge and spin, so it obeys all normal physical laws. So-called "negative matter" would be repelled by gravity, but we don't know if it even exists or can be made.
Re:Simple... it's antiwater
by
hdparm
·
· Score: 2, Funny
Nothing new here - we've got plenty of those...
...In Soviet Russia.
Re:Simple... it's antiwater
by
nomadic
·
· Score: 5, Funny
If you drink anti-water, do you become thirsty?
Re:Simple... it's antiwater
by
JoeJob
·
· Score: 2, Funny
Exactly. But whatever you do don't let it get wet.
Re:Simple... it's antiwater
by
commodoresloat
·
· Score: 4, Funny
Well, that rules out antiwater. The answer, then, is clear. It is antigravity, not antiwater, that makes water go up.
Re:Simple... it's antiwater
by
SEE
·
· Score: 5, Informative
The troubles here are two:
1) We have no experimental evidence as to how antimatter reacts to gravity (beond a couple of small ones where the externally-caused experimental error bars render the results statistically meaningless)
2) We don't know how gravity works. In GR, yes, antimatter has normal mass and reacts normally to gravity. But GR is not the last and final word on how gravity works, and several models otherwise fully consistent with known experimental data allow for anitmatter to be affected to a greater or lesser extent than normal matter by gravity, even to the point of sign reversal.
Since we have no experimental evidence and several potentially correct theories that give different answers, the only conclusion is that we don't know. The general opinion is that animatter is affected by gravity as normal matter, but we don't know that it is.
Re:Simple... it's antiwater
by
Yakman
·
· Score: 4, Funny
In normal circumstances you can pass water, but with anti-water.... ** his mind boggles **
Come on, it's obvious.. ANTI-WATER PASSES YOU!
Re:Simple... it's antiwater
by
thoughtstream
·
· Score: 5, Funny
Close, but no cigar. The clue is in the article, where it's explained that a "thin later of water" is used.
In other words, he's using anti-time! By covering the ramps with a thin coating of later (rather than the usual layers of earlier that surround most objects) the water actually flows backwards in time. This, of course, causes its normal downhill motion under gravity to occur retrotemporally, giving the fluid the appearance of syntemporal uphill motion.
Contratemporal epitaxy, eh? I tell you, that Dyson's a genius!
Re:Simple... it's antiwater
by
Alsee
·
· Score: 5, Informative
We don't have experimental proof yet, but we have overwhelming reason to believe antimatter fall down just like matter. You can work it out based on hysical constants and conservation of energy in a matter/antimatter annihilation. It is explained in this physics FAQ.
If antimatter is repelled by gravity then you either have a violation of conservation of energy, or physics constants are not constant.
-
-- - - You can't take something off the Internet! That's like trying to take pee out of a swimming pool.
Re:Simple... it's antiwater
by
The-Bus
·
· Score: 3, Funny
Or feed it after midnight?
--
Small potatoes make the steak look bigger.
Re:Simple... it's antiwater
by
misterpies
·
· Score: 5, Informative
There can be no doubt, for solid physical reasons, that antiparticles behave identically to regular particles when it comes to gravity.
First of all, the only relevant physical quantity to determine how something is affected by gravity is its mass (and equivalently, in relativity, energy). That's practically the definition of gravity -- the force one body exerts on another by virtue of its mass. In physicist speak, the gravitational field "couples" to mass/energy. Any force having an origin in some other physical quantity is by definition not gravity.
Now we have plenty of experimental evidence -- eg from particle accelerators that antimatter has positive mass, just like regular matter. Indeed, antiparticles have IDENTICAL masses to their corresponding real particles. Therefore they must be affected in the same way as regular matter by gravity.
Secondly, in both relativistic and quantum frameworks, gravity can only be understood if it is always attractive. In other words, mass can only be positive. In quantum terms, this comes out of the fact that gravity must be "spin 2" field. (There's a nice book by Feynman on his attempts to come up with a quantum theory of gravity that explains why it has to be spin 2).
Thirdly, according to quantum field theory the vacuum is filled with "virtual" particles and antiparticles -- that's the zero-point energy of the vacuum. Now the whole point about the vacuum is that it's the lowest possible energy state. If anti particles had negative mass-energy, they'd be in a lower energy state than the vacuum, which means that they'd be stable compared to the vacuum and would not decay back into the vacuum. If that were true, the universe would long ago have filled up with antiparticles...
-- The author of this post asserts his moral rights.
Re:Simple... it's antiwater
by
John+Zebedee
·
· Score: 3, Funny
-- The future is here. It's just not evenly distributed yet.
-- William Gibson
Interesting...
by
Stephonovich
·
· Score: 5, Informative
Quite an elaborate optical illusion. The original drawing is also worth looking at.
(-:Stephonovich:-)
-- "Who needs reincarnation when we've got parallel universes?"
-Me
Re:Interesting...
by
Paradise+Pete
·
· Score: 2, Interesting
none of the water looks like it's flowing up in that direction.
If it looked like it's flowing up then it wouldn't "work." You follow the water from the waterfall down, then as it flows horizontally for a while, and everything seems normal, except that you've somehow gotten back to the top. At that point you get the standard "WTF?" Escher moment.
-- Google doesn't index user sigs, so stop trying to "Google Bomb" with them.
Re:Here's the image I think
by
great+throwdini
·
· Score: 3, Informative
Yes, that's the one. The BBC piece actually links to another representation of the same. Their link is in the righthand sidebar adjacent to the article - not hard to miss.
I want one on my desk :-)
by
newsdee
·
· Score: 4, Interesting
That would look really cool if it was a small widget-type zen thing, so I can have one on my desk to contemplate while trying to be inspired.:-)
Uphill water flow at Disneyworld since 1971..
by
droopus
·
· Score: 5, Informative
Since the 70's, there has been a cave on Tom Sawyer Island in Disneyworld in which water appears to flow uphill.
The Imagineers did it cleverly with a slanted room and no point of reference. Not as geeky, but a really cool effect nonetheless which amazed me back in the day.
-- "The pie shall be cut in half and each man shall receive.....death. I'll eat the pie."
Re:Uphill water flow at Disneyworld since 1971..
by
anethema
·
· Score: 5, Interesting
I always thought the most famous of these things was at the bay of Fundy. The level of the tide rises higher than the river level and causes REAL uphill rapids, and a semi illusionary uphill waterfall.
I havent seen it myself, but I understand its quite a mind bender to see.
There is also an optical illusion near there in..Moncton i think? You go to the base of the hill, put your car in neutral, and your car will roll up the hill. Its an optical illusion, you are actually rolling downhill, but you look and it looks uphill, no amount of thinking its downhill dispells that.
Some very neet stuff, and example of an Eschery world in real life.
--
It's easier to fight for one's principles than to live up to them.
Re:Uphill water flow at Disneyworld since 1971..
by
lendude
·
· Score: 2, Informative
There is/was? a similar hill optical illusion in a suburb called Forrestfield in Perth, Western Australia. Whack the car in neutral and up the noticeable hill you'd roll. Used to be called Magnetic Hill - the theory being there was some large lode stone doing the 'pulling' of the vehicle.
Was a rather unsafe place to drive - the road went thru' thickish scrub and you'd come around the top or bottom corners of the hill and find some car creeping in the middle of the road, sometimes with open doors and no-one inside it - the occupants would be out on the side of the road watching it go 'uphill'.
-- "Get off the cross - we need the wood" - Tori Amos
Re:Uphill water flow at Disneyworld since 1971..
by
evenprime
·
· Score: 4, Informative
There is also an optical illusion near there in..Moncton i think? You go to the base of the hill, put your car in neutral, and your car will roll up the hill. Its an optical illusion, you are actually rolling downhill, but you look and it looks uphill, no amount of thinking its downhill dispells that.
i have previously achieved this same illusion
by
Miguel+de+Icaza
·
· Score: 5, Interesting
but using a different technique. I used a strobe on a small waterfall in a dark room- this works in the same way you can sometimes see car wheels spinning in the wrong dirrection.
When i saw dysons outdoor version while touring the flower show I hoped he had somehow used lasers to implement the strobe technique outdoors in full daylight - that would be cool. But no he is just using pumped air - no surprise really considering hes a vacuum genius:^)
-- Before adopting WHATWG, read the moonlight.NET EULA [http://www.microsoft.com/interop/msnovellcollab/moonlight.mspx]
Before someone tries to market their own uphill water feature, they had better be warned. James Dyson - no stranger to court battles over patents - has presumably taken care of the necessary legal business.
Now, why would he do that? I know it might be a rhetorical question, but honestly though - all he would do, I presume, is to limit this neat but useless (admit it - this is as useless as your lava-lamp and plasma-ball (no seminal jokes please)) thing out of mainstream for a long time - instead of giving him eternal fame, etc.
Now - an interesting question to think about is what part of our pattern-recognizing brain is responsible for *falling* for such a visual illusion? Research like this can shed light on the workings of the mind, I think.
Forget about the usefulness of the invention for a moment (patents have never been concerned with the merits of the invention), this guy created something new and unique, and something which, to some, could be pretty valuable. After all, the exact things you list as examples (lava lamps and plasma balls) have made tons of cash (hell, I have a lava lamp on my desk). So why shouldn't Dyson be allowed exclusive rights to his invention and any monetary rewards it generates for a time? That's exactly what patents were created for! To allow the "little guy" to innovate, and benefit from those innovations.
Now, why would he do that? I know it might be a rhetorical question, but honestly though - all he would do, I presume, is to limit this neat but useless (admit it - this is as useless as your lava-lamp and plasma-ball (no seminal jokes please)) thing out of mainstream for a long time - instead of giving him eternal fame, etc.
James Dyson would be a fool if he were to patent this invention and then not license it out to anyone. Many inventors are quite liberal with their licensing policies, and want to make sure that their invention does enter the "mainstream".
Re:Sigh...
by
KITT_KATT!*
·
· Score: 2, Informative
... And besides if he's keeping it a secret, by definition he _can't_ have filed a patent. Patents were originally created to encourage people to make the design of their inventions public. You can hold exclusive rights over your invention forever if you keep the design a secret. But if the secret leaks out, you're screwed. On the other hand, if you make the design public through the patent process, the government will enforce your exclusive rights for you for a set period of time.
Now - an interesting question to think about is what part of our pattern-recognizing brain is responsible for *falling* for such a visual illusion? Research like this can shed light on the workings of the mind, I think.
Well, it's probably the same mechanism that allow us to be fooled by magic tricks. No biggy!
360 deg view of the waterfall here...
by
mrklin
·
· Score: 4, Informative
A video would be much better but there is the iPix version.
And for his next trick...
by
AvantLegion
·
· Score: 2, Funny
... a toilet whose water rotates clockwise in the Northern Hemisphere!
(don't bother replying with a debunk of the "Coriolis force" - I already know)
Wrong image. He's thinking of the image where there are soldiers walking up a set of stairs.
RTFAWC:
"One of these is an optical illusion that shows water going uphill and round and round the four sides of a square perpetually," [Dyson] says.
The WC is for 'With Care' - the BBC write-up mentions the marching soldiers in an aside. Dyson himself mentions no such work directly (as quoted).
Immediate dissapointment
by
Malicious
·
· Score: 4, Informative
The first thing i would do having this invention in front of me, is to put a small floatation device (leaf, paper boat, etc...) at the bottom of the hill, to watch it float uphill.
Sadly, I would be completely dissapointed.
Re:Immediate dissapointment
by
D+iz+a+n+k+Meister
·
· Score: 2, Insightful
Yeah, I would have dipped my finger into the "upward" flowing water to see which side the water ebs on.:-(
--
He painted a unicorn in outer space. I'm askin' ya, what's it breathin'?
Re:Immediate dissapointment
by
MikeFM
·
· Score: 2, Insightful
They have uphill waterslides that just shoot the water uphill. Why couldn't you build an uphill waterfall that way.. which would allow your boat to flow uphill.
-- At what price learning? At what cost wisdom? The price is a man's peace of mind, and the cost is his life.
Re:Immediate dissapointment
by
trout_fish
·
· Score: 4, Informative
But then it wouldn't have the gentle, relaxing qualities that you would want in your garden. The idea is that it looks to be flowing naturally uphill, not being forced up it.
Obligatory POV-Ray Reference!
by
PovRayMan
·
· Score: 4, Interesting
Re:The house at Disneyland...
by
ahecht
·
· Score: 2, Informative
Actually, that was the Haunted Shack at Knott's Berry Farm, just down the road from Disneyland. It was torn down about a couple of years ago to make way for a thrill ride, which was also quickly torn down because it was unsafe. It is now a picnic area.
An identical copy of the Haunted Shack was built at the Calico Ghost Town where it was called the Mystery Shack, but it burned down in 2001 and is currently being rebuilt.
This Bring Back Fond Memories...
by
istartedi
·
· Score: 4, Interesting
This brings back fond memories of an illusion I first saw when I was a kid. I saw it in Springfield Mall. It was put on by a plumbing contractor, or a hot tub installer, or somebody like that.
It was a faucet, seemingly suspended in mid-air, with an endless supply of water coming from it.
I marvelled at it for several minutes, pondering how it could be done, yet my child's mind, while knowing it wasn't real, was beyond fathoming any art or science that could accomplish this.
Leaning closer to inspect it, my suspicions were aroused by the strange apparatus in the catch basin, but I still needed a full explanation from an adult:
All you do is run a pipe up to the faucet. The pipe supports the faucet. The faucent contains a concavity that directs the water to flow in a hollow cylinder that hides the pipe and completes the illusion.
You can buy table-top models of this, with yellow-dyed water flowing into a mug of beer.
Kudos to this guy though, for taking the concept and wedding it to Escher in a novel way.
-- For all intensive purposes, "whom" is no longer a word. That begs the question, "who cares"?
That's exactly what patents were created for!
To allow the "little guy" to innovate, and benefit from those innovations.
No!!! IP laws are evil! They are outdated
and wrong! There is no purpose to them other
than giving the man a tool to keep his jackboot
on my neck!
--
[Set Cain on fire and steal his lute.]
Cease and Desist
by
AvantLegion
·
· Score: 4, Funny
Dear Mr. Dyson,
We, the FBI, have become aware of your projects. We understand that you have been reverse-engineering water, and this is in violation of the DMCA, PATRIOT, and PATRIOT II acts. You have been flagged for interrogation as a potential terrorist. Until you can be brought in, you are asked to cease all water reverse-engineering.
Sincerely,
Agent J. Mehoff
Dyson didnt invent this , Derek Phillips did !
by
Anonymous Coward
·
· Score: 4, Informative
If you RTFA
Derek Phillips, the Dyson engineer who spent 12 months building the feature, told BBC News Online that his head was spinning when he was given his brief. "James came up to me and said he wanted this idea to make water go uphill. My initial reaction was to look for Paul Daniels' phone number. But I've had to become a bit of an illusionist myself."
so i think the credit goes to Mr Phillips for actually pulling it off, Dyson loves taking credit for other peoples work
Re:Dyson didnt invent this , Derek Phillips did !
by
Usquebaugh
·
· Score: 2, Insightful
Rather like a certain Mr. Edison.
Nice for your home garden
by
MikeyNg
·
· Score: 2, Interesting
That thing would look awesome in your garden. I'd buy one. (If I had the money, and if I had a garden to put it in.)
I'd also want to put one of those non-linear water wheels. You have buckets on a wheel and they get filled up by a source of water. As they fill, they begin to rotate the wheel. However, the buckets have holes on the bottom. This causes the water in the buckets to flow out. What results is a wheel that moves in a decidedly non-linear fashion. That'd be a nice companion to the Escher waterfall.:)
The story leaves out that after the reporters were done taking pictures for the day, he put the big glass bowl centerpiece back in the middle and he showed them what it was really built for. Its rumored that everyone lost thier lighter.
And for his next trick...
by
arpy
·
· Score: 3, Funny
And for his next trick, maybe he could do a mini "hell freezing over".
Hey, then we'd all get laid! Quick, where's his phone number?
Liquid that really flows uphill...kind of
by
valloq
·
· Score: 3, Interesting
This reminded me of something I read in the paper years back, turns out back in 1996 some scientists were awarded the Nobel Prize for discovering a liquid that actually flows uphill, some sort of special property about temperatures approaching absolute zero that cause liquid to move in a coordinated manner and lack all inner friction. That's the extent of the stuff I can understand, check the article out for yourselves.
Re:Liquid that really flows uphill...kind of
by
panurge
·
· Score: 4, Informative
Liquid helium at close to absolute zero. It doesn't flow uphill, it displays enormous capillary effect which can pull it right out of a container.
-- Panurge has posted for the last time. Thanks for the positive moderations.
Re:Liquid that really flows uphill...kind of
by
phliar
·
· Score: 2, Interesting
... turns out back in 1996 some scientists were awarded the Nobel Prize for discovering a liquid that actually flows uphill, some sort of special property about temperatures approaching absolute zero...
Superfluidity of liquid helium (He4) below about 2K (that's 2 kelvin above absolute zero) has been known for a very long time -- since around 1952 or '53 I think. Helium had been liquefied in 1927, but superfluidity wasn't noticed till the 50s.It's a quantum phenomenon. These 1996 Nobel laureates showed it in He3.
-- Unlimited growth == Cancer.
Water running uphill
by
Ashtead
·
· Score: 2, Insightful
I have seen sections of water-slides where the water flow actually goes uphill for shorter distances. Then there is the everyday action where water flows upwards inside a pipe. Except we're so used to this, so making a display of it doesn't prove interesting.
Still, this does look really cool even though it is a trompe l'oeil.
-- SIGBUS @ NO-07.308
Didn't they do this with a gradient of teflon?
by
Darwiniac
·
· Score: 3, Interesting
I remember seeing this ridiculous pop science show that was trying to come up with any evidence to support various bible stories. In one of them the tried to support the splitting of the red sea by showing some researchers who got water to flow up a gradient of decreasingly hydrophobic material (teflon I think). I remember thinking, "Oh yeah, Moses was an expert in poly-flourinated chemistry!"
Does this ring a bell for anyone? The teflon gradient that is, not the cooky show.
Electric Brae, it's called.
by
Gordonjcp
·
· Score: 4, Informative
It's just north of Ayr, near a place called Dunure. Quite a bizarre thing, too. Website here
Almost as good as...
by
UnixRevolution
·
· Score: 3, Interesting
This, of course, causes its normal downhill motion under gravity to occur retrotemporally, giving the fluid the appearance of syntemporal uphill motion.
I know we're supposed to concentrate on the content, and not the form of comments. But you pulled of the rare feat of making 3 simple grammatical errors in that sentence. I suggest you order the book "1001 Tense Formations", by Dr. Dan Streetmentioner, from your favourite Internet book store, and re-fresh your grammar. Next time Read It Before You Post.
I suggest you order the book "1001 Tense Formations"
Duh! Normal tenses don't apply when discussing fictional time manifestations.
Additionally, grammar flames are expected to be grammatically perfect. Yours contained four punctuation errors, one hyphenation error and one misspelling ("off").
Please try harder.
-- You were 80% angel, 10% demon. The rest was hard to explain. - Over The Rhine "Math in a song is good."-Linford
Re:Grammar nazi
by
RichardX
·
· Score: 3, Informative
Sorry, the Duh! is on you. The gramattical guide book to which the parent refers is from the hitch hiker's guide to the galaxy (think about it. How often do you find a grammer guide for time travel in your local bookshop?)
--- quote --- One of the major problems encountered in time travel is not that of accidentally becoming your own father or mother. There is no problem involved in becoming your own father or mother that a broadminded and well-adjusted family can't cope with. There is also no problem about changing the course of history - the course of history does not change because it all fits together like a jigsaw. All the important changes have happened before the things they were supposed to change and it all sorts itself out in the end.
The major problem is quite simply one of grammar, and the main work to consult in this matter is Dr Dan Streetmentioner's Time Traveller's Handbook of 1001 Tense Formations. It will tell you for instance how to describe something that was about to happen to you in the past before you avoided it by time-jumping forward two days in order to avoid it. The event will be described differently according to whether you are talking about it from the standpoint of your own natural time, from a time in the further future, or a time in the further past and is further complicated by the possibility of conducting conversations whilst you are actually travelling from one time to another with the intention of becoming your own father or mother.
Most readers get as far as the Future Semi-Conditionally Modified Subinverted Plagal Past Subjunctive Intentional before giving up: and in fact in later editions of the book all the pages beyond this point have been left blank to save on printing costs.
The Hitch Hikers Guide to the Galaxy skips lightly over this tangle of academic abstraction, pausing only to note that the term "Future Perfect" has been abandoned since it was discovered not to be.
-- Curiosity was framed. Ignorance killed the cat.
Magnetic Hill and Reversing Falls.
by
Viking5150
·
· Score: 2, Informative
I've seen both. The Magnetic Hill is a cool illusion. The Reversing Falls isn't worth the drive. It looks cooler in pictures. It's really a reversing river more than anything.
It is official; BBC confirms: gravity is dying One more crippling bombshell hit the already beleaguered gravity community when IDC confirmed that gravity market share has dropped yet again, now down to less than a fraction of 1 percent of all garden shows. Coming on the heels of a recent BBC survey which plainly states that gravity has lost more garden market share, this news serves to reinforce what we've known all along. gravity is collapsing in complete disarray, as fittingly exemplified by failing dead last in the recent Dyson comprehensive water test.
You don't need to be a Newton to predict gravity's future. The hand writing is on the wall: gravity faces a bleak future. In fact there won't be any future at all because gravity is dying. Things are looking very bad for gravity. Red ink flows like an uphill river of blood.
Magnetic Hill
by
brunes69
·
· Score: 3, Interesting
In Moncton, NB, Canada (where I was born), there is a tourist attraction called Magnetic Hill. It is a really cool experience where you park your car on a hill, and it (seemengly) rolls *up* the hill. This was not designed by "imagineers" or anyone else, it is a natrually occuring illusion... something to do with the way the land grades there in relation to the center of earths gravity. Water also flows uphill there.. totally naturally. Its the only place I know of in the world where this happens.
Re:Magnetic Hill
by
SheldonYoung
·
· Score: 2, Informative
See the following page for a list of more of the similar type of illusion:
Also Found In Nature
by
CowboyBob500
·
· Score: 2, Informative
Those who have visited Ayrshire in Scotland will most likely have visited Electric Brae, which is just about the wierdest place I've ever been. Things roll uphill here, or at least appear to.
In Montana there is a river that is ...
by
danieleran
·
· Score: 3, Informative
"a mile wide, an inch deep and runs uphill," as Lewis and Clark described it.
It's the Powder River, runs into the Yellowstone to the Missouri. There are places it appears to run uphill because the wind blows the surface backward. It's generally pretty shallow, hence 'the inch deep' and, well, the name.
There is no link I can point to on the web. Not even Google knows about it. Montana is very unwired.
That isn't so impressive
by
NewsWatcher
·
· Score: 2, Interesting
When I was in Italy, not far from Rome, there is an entire mountain where not just water, but everything appears to be rolling uphill. Couldn't find any links in Google on it, but I think the Italians called in La strada contrario (the contrary street). All over the road cars are pulled over, as drivers take off the handbrake and laugh as their car rolls uphill. People tried to explain to me how it works, but my Italian wasn't good enough. That didn't use any bubbles to create the illusion either!
-- If the pattern goes 9am, 10am, 11am, why isn't noon 12am?
Re:Tidal Bore was better 30 years ago.
by
Clover_Kicker
·
· Score: 2, Informative
A lot of people have a lot to say about the causeway, they've have been fighting about it for 30 years.
I think the "rich landowners" thing is pretty funny, Moncton isn't known for its wealth. The houses along that artifical lake are pretty middle class, we're not talking about millionaires. Also, while those guys oppose *removing* the causeway, they didn't have anything to do with *building* it in the first place.
Also, as the linked article points out, the fishermen downstream oppose removing the causeway.
Lastly, the "let's get rid of the causeway" people conveniently forget about the old garbage dump on the banks of the river just downstream from the causeway. (A lot of really smart environmental decisions were made in Moncton in the 60's, can you tell?) If they remove the causeway there will be a lot more erosion along that stretch of the river, unearthing God knows what. So any plan to remove the causeway had better budget for shoring up the banks of the old dump.
Just to be balanced, the people who want the causeway to be removed have a website here.
It's a water elevator, or something.
Antiwater (two part antihydrogen and one part antioxygen) is repelled by the force of gravity.
(-:Stephonovich:-)
"Who needs reincarnation when we've got parallel universes?" -Me
Waterfall.
Google doesn't index user sigs, so stop trying to "Google Bomb" with them.
That would look really cool if it was a small widget-type zen thing, so I can have one on my desk to contemplate while trying to be inspired. :-)
The ENIAC Demo Competition
Since the 70's, there has been a cave on Tom Sawyer Island in Disneyworld in which water appears to flow uphill.
The Imagineers did it cleverly with a slanted room and no point of reference. Not as geeky, but a really cool effect nonetheless which amazed me back in the day.
"The pie shall be cut in half and each man shall receive.....death. I'll eat the pie."
are at the World of Escher. The man was a genius.
I'm not Seth.
but using a different technique. I used a strobe on a small waterfall in a dark room- this works in the same way you can sometimes see car wheels spinning in the wrong dirrection.
:^)
When i saw dysons outdoor version while touring the flower show I hoped he had somehow used lasers to implement the strobe technique outdoors in full daylight - that would be cool. But no he is just using pumped air - no surprise really considering hes a vacuum genius
Before adopting WHATWG, read the moonlight.NET EULA [http://www.microsoft.com/interop/msnovellcollab/moonlight.mspx]
Now, why would he do that? I know it might be a rhetorical question, but honestly though - all he would do, I presume, is to limit this neat but useless (admit it - this is as useless as your lava-lamp and plasma-ball (no seminal jokes please)) thing out of mainstream for a long time - instead of giving him eternal fame, etc.
Now - an interesting question to think about is what part of our pattern-recognizing brain is responsible for *falling* for such a visual illusion? Research like this can shed light on the workings of the mind, I think.
My life in the land of the rising sun.
A video would be much better but there is the iPix version.
(don't bother replying with a debunk of the "Coriolis force" - I already know)
RTFAWC:
The WC is for 'With Care' - the BBC write-up mentions the marching soldiers in an aside. Dyson himself mentions no such work directly (as quoted).
The first thing i would do having this invention in front of me, is to put a small floatation device (leaf, paper boat, etc...) at the bottom of the hill, to watch it float uphill.
Sadly, I would be completely dissapointed.
0110100100100000011000010110110100100000011000100
Check this animation out from an old IRTC round.
a ll.mpg
:-) )
a ll.txt e nts/h20fall.comments
http://www.irtc.org/ftp/pub/anims/2000-07-15/h20f
(setting up a BT would nice for this so IRTC.ORG doesn't get bandwidth destroyed. I'd do it, but I should be really studying for final exams
Notes
http://www.irtc.org/ftp/pub/anims/2000-07-15/h20f
Comments
http://www.irtc.org/ftp/pub/anims/2000-07-15/comm
From here
http://www.irtc.org/anims/2000-07-15.html
All credit for the animation goes to Joe Wise.
----------
Check out my blackbox styles
Actually, that was the Haunted Shack at Knott's Berry Farm, just down the road from Disneyland. It was torn down about a couple of years ago to make way for a thrill ride, which was also quickly torn down because it was unsafe. It is now a picnic area.
An identical copy of the Haunted Shack was built at the Calico Ghost Town where it was called the Mystery Shack, but it burned down in 2001 and is currently being rebuilt.
Perhaps some sort of spinoff of Marcel Duchamp's 1917 work of "art".
Those crazy dadaists!
It's the only exercise my brain gets outside of /.
My sympathies, really...
That's pretty well done! of course it's a trick, but it's one I haven't seen before, AND it's a *good* trick!
Machine9dotNet
This brings back fond memories of an illusion I first saw when I was a kid. I saw it in Springfield Mall. It was put on by a plumbing contractor, or a hot tub installer, or somebody like that.
It was a faucet, seemingly suspended in mid-air, with an endless supply of water coming from it.
I marvelled at it for several minutes, pondering how it could be done, yet my child's mind, while knowing it wasn't real, was beyond fathoming any art or science that could accomplish this.
Leaning closer to inspect it, my suspicions were aroused by the strange apparatus in the catch basin, but I still needed a full explanation from an adult:
All you do is run a pipe up to the faucet. The pipe supports the faucet. The faucent contains a concavity that directs the water to flow in a hollow cylinder that hides the pipe and completes the illusion.
You can buy table-top models of this, with yellow-dyed water flowing into a mug of beer.
Kudos to this guy though, for taking the concept and wedding it to Escher in a novel way.
For all intensive purposes, "whom" is no longer a word. That begs the question, "who cares"?
No!!! IP laws are evil! They are outdated and wrong! There is no purpose to them other than giving the man a tool to keep his jackboot on my neck!
[Set Cain on fire and steal his lute.]
Dear Mr. Dyson, We, the FBI, have become aware of your projects. We understand that you have been reverse-engineering water, and this is in violation of the DMCA, PATRIOT, and PATRIOT II acts. You have been flagged for interrogation as a potential terrorist. Until you can be brought in, you are asked to cease all water reverse-engineering. Sincerely, Agent J. Mehoff
If you RTFA
Derek Phillips, the Dyson engineer who spent 12 months building the feature, told BBC News Online that his head was spinning when he was given his brief.
"James came up to me and said he wanted this idea to make water go uphill. My initial reaction was to look for Paul Daniels' phone number. But I've had to become a bit of an illusionist myself."
so i think the credit goes to Mr Phillips for actually pulling it off, Dyson loves taking credit for other peoples work
That thing would look awesome in your garden. I'd buy one. (If I had the money, and if I had a garden to put it in.)
I'd also want to put one of those non-linear water wheels. You have buckets on a wheel and they get filled up by a source of water. As they fill, they begin to rotate the wheel. However, the buckets have holes on the bottom. This causes the water in the buckets to flow out. What results is a wheel that moves in a decidedly non-linear fashion. That'd be a nice companion to the Escher waterfall. :)
Where the wind blows, the tumbleweed goes.
The story leaves out that after the reporters were done taking pictures for the day, he put the big glass bowl centerpiece back in the middle and he showed them what it was really built for. Its rumored that everyone lost thier lighter.
And for his next trick, maybe he could do a mini "hell freezing over".
Hey, then we'd all get laid! Quick, where's his phone number?
This reminded me of something I read in the paper years back, turns out back in 1996 some scientists were awarded the Nobel Prize for discovering a liquid that actually flows uphill, some sort of special property about temperatures approaching absolute zero that cause liquid to move in a coordinated manner and lack all inner friction. That's the extent of the stuff I can understand, check the article out for yourselves.
Still, this does look really cool even though it is a trompe l'oeil.
SIGBUS @ NO-07.308
I remember seeing this ridiculous pop science show that was trying to come up with any evidence to support various bible stories. In one of them the tried to support the splitting of the red sea by showing some researchers who got water to flow up a gradient of decreasingly hydrophobic material (teflon I think). I remember thinking, "Oh yeah, Moses was an expert in poly-flourinated chemistry!" Does this ring a bell for anyone? The teflon gradient that is, not the cooky show.
It's just north of Ayr, near a place called Dunure. Quite a bizarre thing, too. Website here
Those Escher Lego Pictures from a while back.
:)
Escher's work is damn cool.
You like your new Mac more than you like me, don't you, Dave? Dave? I asked...She said Yes.
This, of course, causes its normal downhill motion under gravity to occur retrotemporally, giving the fluid the appearance of syntemporal uphill motion.
I know we're supposed to concentrate on the content, and not the form of comments. But you pulled of the rare feat of making 3 simple grammatical errors in that sentence. I suggest you order the book "1001 Tense Formations", by Dr. Dan Streetmentioner, from your favourite Internet book store, and re-fresh your grammar. Next time Read It Before You Post.
Irene KHAAAAAAN!
You are referring to the Reversing Falls in Saint John, NB.
Also, you are referring to The Magnetic Hill in Moncton, NB.
I've seen both. The Magnetic Hill is a cool illusion. The Reversing Falls isn't worth the drive. It looks cooler in pictures. It's really a reversing river more than anything.
It is official; BBC confirms: gravity is dying One more crippling bombshell hit the already beleaguered gravity community when IDC confirmed that gravity market share has dropped yet again, now down to less than a fraction of 1 percent of all garden shows. Coming on the heels of a recent BBC survey which plainly states that gravity has lost more garden market share, this news serves to reinforce what we've known all along. gravity is collapsing in complete disarray, as fittingly exemplified by failing dead last in the recent Dyson comprehensive water test.
You don't need to be a Newton to predict gravity's future. The hand writing is on the wall: gravity faces a bleak future. In fact there won't be any future at all because gravity is dying. Things are looking very bad for gravity. Red ink flows like an uphill river of blood.
In Moncton, NB, Canada (where I was born), there is a tourist attraction called Magnetic Hill. It is a really cool experience where you park your car on a hill, and it (seemengly) rolls *up* the hill. This was not designed by "imagineers" or anyone else, it is a natrually occuring illusion... something to do with the way the land grades there in relation to the center of earths gravity. Water also flows uphill there.. totally naturally. Its the only place I know of in the world where this happens.
The laws of physics have been defiled for years over at Gravity Hill.
Where have you been?
No man is an island, But if you take a bunch of dead guys and tie them together, they make a pretty good raft.
For his next trick....
Making the bubbles in a Guiness flow up!
www.eFax.com are spammers
Those who have visited Ayrshire in Scotland will most likely have visited Electric Brae, which is just about the wierdest place I've ever been. Things roll uphill here, or at least appear to.
Here's a link, and here's another.
Bob
Listen to my latest album here
"a mile wide, an inch deep and runs uphill," as Lewis and Clark described it.
It's the Powder River, runs into the Yellowstone to the Missouri. There are places it appears to run uphill because the wind blows the surface backward. It's generally pretty shallow, hence 'the inch deep' and, well, the name.
There is no link I can point to on the web. Not even Google knows about it. Montana is very unwired.
When I was in Italy, not far from Rome, there is an entire mountain where not just water, but everything appears to be rolling uphill.
Couldn't find any links in Google on it, but I think the Italians called in La strada contrario (the contrary street).
All over the road cars are pulled over, as drivers take off the handbrake and laugh as their car rolls uphill.
People tried to explain to me how it works, but my Italian wasn't good enough.
That didn't use any bubbles to create the illusion either!
If the pattern goes 9am, 10am, 11am, why isn't noon 12am?
A lot of people have a lot to say about the causeway, they've have been fighting about it for 30 years.
I think the "rich landowners" thing is pretty funny, Moncton isn't known for its wealth. The houses along that artifical lake are pretty middle class, we're not talking about millionaires. Also, while those guys oppose *removing* the causeway, they didn't have anything to do with *building* it in the first place.
Also, as the linked article points out, the fishermen downstream oppose removing the causeway.
Lastly, the "let's get rid of the causeway" people conveniently forget about the old garbage dump on the banks of the river just downstream from the causeway. (A lot of really smart environmental decisions were made in Moncton in the 60's, can you tell?) If they remove the causeway there will be a lot more erosion along that stretch of the river, unearthing God knows what. So any plan to remove the causeway had better budget for shoring up the banks of the old dump.
Just to be balanced, the people who want the causeway to be removed have a website here.