Has any one ever thought what would happen if you put a slinky down an up escalator?
If you could time it right it would never stop…
Any thoughts? Or anyone want to try?

I think that an escalator step may be too wide, so the slinky would go down the first step and stop on the second.

Just a thought.

Even if it does keep going down steps, there’s the question of whether the ‘slink’ will be fast enough to keep up with the escalator going upwards, otherwise the slinky will just end up at the top anyway.

I’d have to think about it more, but I suspect that gravity makes all slinkies “slink” at the same speed. Actually, I take that back, I think momentum comes into play. Anyway, it’d be easier to just change the speed of the escalator. But you’re right about the size issue.

I have this feeling that somehow violates some law of conservation, but I can’t justify it. So, for now, I think that it’d work.

My Prediction:

The slinky will go faster then the escalator, it will stay on (from the top) for probably 20-30 seconds.

Nothing is being created or destroyed. Yes theoretically it would work but you would need to change variables around. I reality however the best you could do is keep it going a long time.

yeah i think it could happen.

me too. i think its possible. but itd take a lot of trial and error. and do slinkies accelerate the rate they slink after a bit? ive had slinky races so i know not all slinkies slink at the same speed. maybe its te initial drop speed that matters too hmm.

You could use closed loop control with some form of sensor array (I have no idea what you’d use - that’s for people with more free time and money than I have to figure out ) monitoring the position and “speed” of the Slinky and controlling the speed of the escalator to keep it “slinking” in place. So who wants to commandeer an escalator for this project?

I think I can’t do a slinky on a regular set of steps…

:rolleyes:

Why control the slinky’s speed, when the best way to accomplish this is to have a speed regulator on the escalator itself. Slow it down or speed it up to make it in sync with the slinky’s natural speed.

I would love to see someone do this btw…

I know there were a million of them in Atlanta… lol

edit:
Looks like it has been tried before, and it was a failure…
http://www.20six.co.uk/weblogCategory/uy0wqr7qpr2t

The problem wasn’t that the steps were too deep, rather too wide - the slinky would decend the step and land in the middle of the next, then ‘slink’ again to the edge of the step and stop.

I guess the stair’s individual tread run did play a factor into this experiment…

So does anyone know where I can find a thin-stepped escalator?

edit 2:

On another site I saw dealing with this kind of idea, it was suggested instead of an escalator type deal, you can use an elevated conveyor belt of some kind…
Elevate it enough for the slinky to actually perform, but not to fast to beat the belt’s motion, and you could have what looks like a motionless object that is actually in motion all the time.

It would be like… lol doing an MJ style Moonwalk on the belt…
Actually, speaking of walking a treadmill may work for that at an elevated angle…

classic, old quote from www.bash.org (warning, not that appropriate for work):

#188572 +(2790)-

if my calculations are correct SLINKY + ESCULATOR = EVERLASTING FUN

i wonder if “slink” can be used as a verb … so many obvious words here

To slink around? Sure why not?

Hahahaaa! We should so do this on that really long escalator going down at nats! It’s not like anyone ever uses it Better yet! Every FIRSTer buy and bring a \$2.00 slinky and then once we finally reach the top, set one down on a fateful trip to the bottom. (Or you’d start it at the bottom if the escalator tends to carry the slinky motion “up”)

It would be so cool!

Think about it! To have a few hundred slinkies endlessly slinking on the escalator. An unbroken cadence of springs! It would definitely give some entertainment for the long ride up

So how about it people? Anyone interested in SlinkyFest '06 at nats?

YAY SLINKY FEST!!! Though i think we would have to make our own escalator though…

Nah, we don’t need to make our own escalator, just use that really long one, you know, the one that comes up from the subway into the Peachtree center? It’s long enough that the slinkies could be going for hours. At least theoretically. And for the clueless passerby, it would also lead them to ask questions about who are we, what is FIRST, Etc. Either that or they’d give us some really funny looks