Slinky Question

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[John Woodgate]

I read in sci.electronics.design that Mjolinor <mjolinor@hotmail.com>
wrote (in <DRY2c.25892$gC2.21530@newsfe5-gui.server.ntli.net&gt about
'Slinky Question', on Mon, 8 Mar 2004:

No need to swap bins, just make the up escalator a down escalator on the
following day, that way only the signs need swapping round, much easier.

That's how they do it at German rail stations. You can see the red and
green light to tell you which way the escalator is going.
--
Regards, John Woodgate, OOO - Own Opinions Only.
The good news is that nothing is compulsory.
The bad news is that everything is prohibited.
http://www.jmwa.demon.co.uk Also see http://www.isce.org.uk

 

[Don Pearce]

On Mon, 8 Mar 2004 13:11:44 +0000, John Woodgate
<jmw@jmwa.demon.contraspam.yuk> wrote:

I read in sci.electronics.design that Mjolinor <mjolinor@hotmail.com
wrote (in <DRY2c.25892$gC2.21530@newsfe5-gui.server.ntli.net&gt about
'Slinky Question', on Mon, 8 Mar 2004:

No need to swap bins, just make the up escalator a down escalator on the
following day, that way only the signs need swapping round, much easier.

That's how they do it at German rail stations. You can see the red and
green light to tell you which way the escalator is going.

Well thank goodness for the red and green lights! Without those I'm
pretty sure I would be stood there for ages trying to up the down
escalator.

d

_____________________________

http://www.pearce.uk.com

 

[Guy Macon]

John Woodgate <jmw@jmwa.demon.contraspam.yuk> says...

Mjolinor <mjolinor@hotmail.com> wrote:

No need to swap bins, just make the up escalator a down escalator on the
following day, that way only the signs need swapping round, much easier.

That's how they do it at German rail stations. You can see the red and
green light to tell you which way the escalator is going.

So you are saying that the Germans are biased against the colorblind?

 

[Dan Messenger]

I have tried this.
The biggest problem is that you need to take into account that the esculator
steps are deep and tall, thus you need a big slinky. The slinky I had was
just too small for the job.

"Brian Howie" <brian.howie@baesystems.com> wrote in message
news:404c6937@baen1673807.greenlnk.net...

"Jim Thompson" <thegreatone@example.com> wrote in message
news:l85k4012sak0bb8qt0il8issb32dkf0p6t@4ax.com...
If you place a Slinky on an escalator, will it go forever ?

Yes, but only if the relative times of the Slinky fall and the escalator
rise are the same. However even if you get that right, due to the Coriolis
effect, Slinky will eventually walk into the edge of the escalator.

Brian

--
Brian Howie
BAE SYSTEMS Avionics Limited
Sensor Systems Division
Crewe Toll Phase II, 1st Floor,
Edinburgh EH5 2XS
Phone +44 (0)131 343 8769
FAX +44 (0)131 343 8941
Email brian.howie@baesystems.com

 

[Dan Messenger]

"Meindert Sprang" <mhsprang@NOcustomSPAMware.nl> wrote in message
news:404c482e$1@news.nb.nu...

"Mjolinor" <mjolinor@hotmail.com> wrote in message
news:hnX2c.25609$gC2.4316@newsfe5-gui.server.ntli.net...

"Tim Williams" <tmoranwms@charter.net> wrote in message
I thought they were a continuous belt?


They are, that's why you allways get an up escalator next to a down
escalator but I still haven't figured how they turn it 180 degrees on
such
a
tight radius to allow it to go down on the one next to it.

Not true, many stores have single esculators.

 

[Don Pearce]

On Mon, 8 Mar 2004 17:17:20 -0000, "Dan Messenger"
<NO-SPAM-PLEASEdanmessenga@hotmail.com> wrote:

"Meindert Sprang" <mhsprang@NOcustomSPAMware.nl> wrote in message
news:404c482e$1@news.nb.nu...
"Mjolinor" <mjolinor@hotmail.com> wrote in message
news:hnX2c.25609$gC2.4316@newsfe5-gui.server.ntli.net...

"Tim Williams" <tmoranwms@charter.net> wrote in message
I thought they were a continuous belt?


They are, that's why you allways get an up escalator next to a down
escalator but I still haven't figured how they turn it 180 degrees on
such
a
tight radius to allow it to go down on the one next to it.


Not true, many stores have single esculators.

And have you noticed that the department where you can buy escalator
treads is always on the top floor?

d

_____________________________

http://www.pearce.uk.com

 

[Keith R. Williams]

In article <btio40td5ltkgklbq2llkq33m9tjhnceo8@4ax.com>,
complete@nonsense.com says...

On Mon, 8 Mar 2004 11:15:29 +0100, "Meindert Sprang"
mhsprang@NOcustomSPAMware.nl> wrote:

"Mjolinor" <mjolinor@hotmail.com> wrote in message
news:hnX2c.25609$gC2.4316@newsfe5-gui.server.ntli.net...

"Tim Williams" <tmoranwms@charter.net> wrote in message
I thought they were a continuous belt?


They are, that's why you allways get an up escalator next to a down
escalator but I still haven't figured how they turn it 180 degrees on such
a
tight radius to allow it to go down on the one next to it.

That is impossible and no, they are not one belt that runs over two
escalators. The stairs run back below the escalator, that's wy they look so
'fat'.

Meindert


No, that wouldn't work. All the people would fall off on the way back
down. Either the escalator must, as Mjolinor says, turn through a
rather sharp 180 degrees, or perhaps after all the long length of
stairway has collected in the big bin at the end of the day, they just
swap bins so that the full bin replaces the empty one, and they can
start again. Of course this would involve the re-threading problem,
but maybe they are designed to make this easy.

Sure. Ever notice that the edges of the steps look like zippers? They
un-zip the steps from the "up" escalator one day and store them away.
The next day they move the steps to the "down" side, zip them up, and
feed them into the down escalator the next. ...quite a marvelous
mechanical device, actually.

--
Keith

 

[John Woodgate]

I read in sci.electronics.design that Dan Messenger <NO-SPAM-
PLEASEdanmessenga@hotmail.com> wrote (in <c2i9qv$1rntmk$1@ID-
59554.news.uni-berlin.de&gt about 'Slinky Question', on Mon, 8 Mar 2004:

Not true, many stores have single esculators.

No point in keeping the restaurant open for just one diner.
--
Regards, John Woodgate, OOO - Own Opinions Only.
The good news is that nothing is compulsory.
The bad news is that everything is prohibited.
http://www.jmwa.demon.co.uk Also see http://www.isce.org.uk

 

[Leon Heller]

"Paul Burridge" <pb@osiris1.notthisbit.co.uk> wrote in message
news:b5oc40566jlpvecjtrr2m0vda7g26heqcu@4ax.com...

Hi all,

I'm trying to get to grips with Pulsonix, with mixed success so far.
The main difficulty I'm having is translating a finished schematic
into a fully-tracked board layout.
Firstly, I go for "translate to PCB" and I get a blank board with the
components distributed around the outside of it, all interconnected by
yellow virtual wires. So far, all well and good. Then the problems
start.
Ideally, I'd like to be able to go for Tools/autoplace/full autoplace
and see everything neatly set out, but all that happens is the
components are thrown onto the board willy-nilly in any old position.
Increasing the number of passes and re-executing the command seems to
result in no improvement whatsoever. I have to reposition each
component individually to make the layout sensible and reduce the
number of crossed wires that Autoplace originally gave rise to.
Having optimised the layout by hand, I then hit Tools/auto route/route
whole design whereupon a minority of the virtual connecting wires are
translated into PCB tracks, leaving most of them completely unaltered!
Again, repeated passes fail to create any more of the connections into
proper tracks and I have to "edit segment" them all individually
again. That's hard work too, since instead of being 'elastic' in their
properies as they were in the previous stage, the tracks fold up and
cross over when one shortens them by moving components closer
together! These are the biggest problems I've discovered so far. Any
ideas, anyone?

As other people have said, autoplace is a waste of time. The Pulsonix
autorouter (it's actually the Bartels router) isn't bad but you need to set
it up properly, like all autorouters, and manually route any critical tracks
first. On the few occasions I've used it I get 100% completion, or something
very close to it.. I usually route my boards manually, they look much nicer
and probably work better.

Leon

 

[Guy Macon]

Michael <michael@clift.com.au> says...

Jim Thompson <thegreatone@example.com> wrote in message news:<l85k4012sak0bb8qt0il8issb32dkf0p6t@4ax.com>...
If you place a Slinky on an escalator, will it go forever ?

Have a custom big slinky, or a custom small escalator, so the spring
size suits the step size.

Have some light beams near the middle to detect if the slinky is
falling too fast or slow, then change the speed of the escalator
accordingly.

Have slightly concaved steps to keep the slinky in the middle.

Hmmmmm.

In the case of a belt on a roller, the intuitively obvious method
of making the roller a reverse barrel shape so as to center the belt
doesn't work - you need a barrel shape because the belt climbs
uphill.

A slinky is a completely different system, but are we sure that
concave steps will center it?

You could use a slinky-diameter hole with tapered sides:

-----\ /-------- (side view)
\------------/




--
Guy Macon, Electronics Engineer & Project Manager for hire.
Remember Doc Brown from the _Back to the Future_ movies? Do you
have an "impossible" engineering project that only someone like
Doc Brown can solve? My resume is at http://www.guymacon.com/

 

[Bill Sloman]

"Paul Camilleri" <paul.camilleri@btconnect.com> wrote in message news:<c2ijnp$m74$1@hercules.btinternet.com>...

"Bill Sloman" <bill.sloman@ieee.org> wrote in message
news:7c584d27.0403080711.8321a4b@posting.google.com...
"gmv" <NoEmail@ThisWay.123> wrote in message
news:<MkX2c.8$Fw.6039@news-west.eli.net>...
That is all quite interesting
All I know is safety features
do not always work.
I have heard of people getting hurt
on Escalators before.
But you are right, I don't get out.
Since this country has labled me mentally ill
I have lost my freedom to get out.
You "normal" people do not understand
just how damning being labled Mentally Ill
really is. All the decent high security
jobs in the technical world is out of bounds
to us so called crazy peoples.

Take up politics as a career. Mental illness - notably megalomania -
is pretty much required. I do know one or two politicians who do
appear to be more or less sane, but the vast majority are off on some
other planet, obsessively looking for weapons of mass destruction in
the most unlikely places, and making war in the hope of securing peace
(amongst a variety of other bizarre activities).

As a politician, you'd get to determine who had access to the high
security jobs in the technical world - and sanity definitely isn't a
qualification. They want people who share their particular demented
view of the world ...

-------
Bill Sloman, Nijmegen

Seems to me the *crazies* get to do the really interesting work though.

Crazy people certainly can do "interesting" work. Cleaning up after
them can be excessively interesting, as the occupying forces in Irak
are finding out.

--------
Bill Sloman, Nijmegen

 

John S. Dyson <toor@iquest.net> says...

In article <7c584d27.0403090537.36cb93d3@posting.google.com>,
bill.sloman@ieee.org (Bill Sloman) writes:

Seems to me the *crazies* get to do the really interesting work though.

Crazy people certainly can do "interesting" work. Cleaning up after
them can be excessively interesting, as the occupying forces in Irak
are finding out.

The US, UK, Poland and other responsible countries are indeed
finding and interesting mess as left by Saddam. The peanut
gallery is mostly just saddened by the loss of their unethical/illegal
cash flow.

Deciphering the non-destroyed/non-looted documentation (some
looting was targeted, akin to the pseudo-looting of the Museums)
will hopefully result in exposing Chiraq and his friends.
The sad, sad thing is that it is expected that there was
French, German etc profiteering against the Iraqi people, but
I also hope to find out about ANY Americans who have acted slimy
like the French also. The chain of illegal funds from the Saddamist
bribes will probably not result in prosecutions by the
French government (geesh, political profiteering is embedded there),
but with the witch-hunting mood in the US, they'll probably
prosecute USers with wild abandon.

John

--
Guy Macon, Electronics Engineer & Project Manager for hire.
Remember Doc Brown from the _Back to the Future_ movies? Do you
have an "impossible" engineering project that only someone like
Doc Brown can solve? My resume is at http://www.guymacon.com/

 

[Bill Sloman]

John Larkin <jjlarkin@highlandSNIPtechTHISnologyPLEASE.com> wrote in message news:<k2sr405ckjn0o8ihpoi42oc6qglknlo1i7@4ax.com>...

On Tue, 9 Mar 2004 16:15:37 +0000 (UTC), toor@iquest.net (John S.
Dyson) wrote:

In article <7c584d27.0403090537.36cb93d3@posting.google.com>,
bill.sloman@ieee.org (Bill Sloman) writes:

Seems to me the *crazies* get to do the really interesting work though.

Crazy people certainly can do "interesting" work. Cleaning up after
them can be excessively interesting, as the occupying forces in Irak
are finding out.

The US, UK, Poland and other responsible countries are indeed
finding and interesting mess as left by Saddam. The peanut
gallery is mostly just saddened by the loss of their unethical/illegal
cash flow.

Deciphering the non-destroyed/non-looted documentation (some
looting was targeted, akin to the pseudo-looting of the Museums)
will hopefully result in exposing Chiraq and his friends.
The sad, sad thing is that it is expected that there was
French, German etc profiteering against the Iraqi people, but
I also hope to find out about ANY Americans who have acted slimy
like the French also. The chain of illegal funds from the Saddamist
bribes will probably not result in prosecutions by the
French government (geesh, political profiteering is embedded there),
but with the witch-hunting mood in the US, they'll probably
prosecute USers with wild abandon.

John

If you just ignore everything Sloman posts, your life will be
incrementally improved. Give it a try.

"John S. Dyson" failed its Turing test a long time ago. Give it the
right key-word and it produces yet another pro-republican rant. I ask
you - would any human poster persist with the "Chiraq" joke for more
than a year?

------
Bill Sloman, Nijmegen

 

[Bill Sloman]

"Tim Williams" <tmoranwms@charter.net> wrote in message news:<104svt57uaof21d@corp.supernews.com>...

"Bill Sloman" <bill.sloman@ieee.org> wrote in message
news:7c584d27.0403091528.595554a5@posting.google.com...
I ask you - would any human poster persist with the "Chiraq" joke for more
than a year?

Viagra and blue-dress-in-the-oval-office jokes are also still making their
rounds. So?

The same "guy" has been making the same "joke" in the same forum for
the same audience for more than a year. That's not normal behaviour.

--------
Bill Sloman, Nijmegen

 

[Frank Bemelman]

"Bill Sloman" <bill.sloman@ieee.org> schreef in bericht
news:7c584d27.0403100230.3b1d7b4c@posting.google.com...

"Tim Williams" <tmoranwms@charter.net> wrote in message
news:<104svt57uaof21d@corp.supernews.com>...
"Bill Sloman" <bill.sloman@ieee.org> wrote in message
news:7c584d27.0403091528.595554a5@posting.google.com...
I ask you - would any human poster persist with the "Chiraq" joke for
more
than a year?

Viagra and blue-dress-in-the-oval-office jokes are also still making
their
rounds. So?

The same "guy" has been making the same "joke" in the same forum for
the same audience for more than a year. That's not normal behaviour.

Well, you have to admit you sound like a cracked record yourself

--
Thanks, Frank.
(remove 'x' and 'invalid' when replying by email)

 

[DarkMatter]

On Mon, 08 Mar 2004 08:51:12 GMT, "gmv" <NoEmail@ThisWay.123> Gave us:

A Slinky might be a way to
sabotage an escalator because all
that wire could easily get tangled around
that moving machinery. Any person
getting tangled in the wire might possibly
be killed.
I find it interesting to have such ideas
placed in my head from a newsgroup.

Don't blame Usenet for your fooked in the head perversions.

You top posting Usenet dingledorf!

 

[DarkMatter]

On Mon, 08 Mar 2004 09:49:32 GMT, "gmv" <NoEmail@ThisWay.123> Gave us:

That is all quite interesting
All I know is safety features
do not always work.
I have heard of people getting hurt
on Escalators before.
But you are right, I don't get out.
Since this country has labled me mentally ill
I have lost my freedom to get out.
You "normal" people do not understand
just how damning being labled Mentally Ill
really is. All the decent high security
jobs in the technical world is out of bounds
to us so called crazy peoples.

And to think that they give you access to a PC, and let your top

posting, protocol ignoring, retarded ass on Usenet.

The reasons for no jobs is because you are a high security risk.
That should be blatantly obvious... even to you.

 

[DarkMatter]

On Mon, 08 Mar 2004 03:28:02 -0800, ?@?.? Gave us:

gmv <NoEmail@ThisWay.123> says...

to us so called crazy peoples.

Thanks for identifying yourself!

Now that we know that you are crazy, we can all ignore you.

*plonk*

Worse than any crazy dude on Usenet, are the idiotic tards that

think that their kill file edit announcements mean a fucking thing to
anyone.