SILLY SIGNS. . . . .LET'S START A THREAD ?

[red750]

[red750]

[red750]

[facthunter]

Some of the liquid acetone will come out if it's NOT upright and the cylinder will become dangerous. in any position. . 

 

Spacey, a steam loco is about 80 tonnes and semis are above that now . The D2 tram is  extended length. (That's why it 's 36 tonnes and was introduced 20years ago .  In Central Melbourne ALL trams are FREE.. . Later versions introduced this year are world class. Nev

[red750]

[old man emu]

4 minutes ago, spacesailor said:

I " Don't " think of massive " trams " . Being "  light .

Oddly enough, it's got to do with stopping distance. A "light rail" train apparently can stop in a shorter distance than a "heavy rail" train.  A basic reason for this is that a "light rail (LR)" train has fewer carriages and even when crowded with passengers, would be lighter than a "heavy rail (HR)" train.

 

In order to stop any moving object, you have to remove the energy it possesses due to its motion, K.E. = 1/2 m v^2. That is done by using the friction of the brake linings to convert the energy of motion to heat.  If an LR has less mass than a HR, then it is clear that less energy has to be dissipated.

 

Interestingly, if the stopping distance of an LR and a HR was tested on the same length of level track from the same speed by applying the brakes to immediately stop their wheels from rotating, they would both stop in the same distance from the point of lock up. It sounds counter-intuitive, but the stopping distance of a sliding object is solely dependent on the friction between the object and the surface. I'm assuming here that the steel in a wheel of as LR is the same as a HR giving the same friction, and I can't see why it would not be. 

[red750]

What has this discussion of trams and light rail got to do with silly signs? If there is no appropriate thread, create one. Don't attach to any old thread willy nilly.

[facthunter]

The wheels used to have the wearing part shrunk on like the flywheel on a car has the ring gear retained. Trams don't get to the velocities normal rail does. Locking wheels will wear flats on them and tends to make them derail. They are designed with a taper on the main part that helps them corner with the flange as a back up. Lock it all up and that doesn't work. .Trams don't seem to have trouble stopping.  Standing people have to hold on  well when they do.  Nev

[old man emu]

1 hour ago, red750 said:

What has this discussion of trams and light rail got to do with silly signs? If there is no appropriate thread, create one. Don't attach to any old thread willy nilly.

I'm not wearing the blame!

You posted a funny sign about transport infrastructure construction. I injected a comment in the same vein. Spacey took two words and created a question using them. I just tried to enlighten him.

IT'S ALL SPACEY'S FAULT!

[facthunter]

Gotta be spacey. I'm not called Willy Nilly, so I'm off the hook.  Nev

[spacesailor]

Ho dear ! .

I must confess  . " Guilty as charged " .

But only a comment , on a previous post .

So how to comment on  post . Without " high jacking " that post .

PLEASE COMMENT  ! .

spacesailor

[red750]

Okay. But it happens all the time. Democracy/dictatorship got hijacked to water fluoridation,and now Food is discussing insecticides. I'm not eating insecticides for anyone.

[facthunter]

Comment. You don't use HI JACKING on an aviation forum.  Nev

[nomadpete]

2 hours ago, facthunter said:

Comment. You don't use HI JACKING on an aviation forum.  Nev

You gotta picture for that?

 

PS Red. Here is a funny picture.

[facthunter]

You own a Ferrari mostly to show you have one.  Nev

[onetrack]

Nomadpete - You gotta be sh**ing me??!! (as the Yanks say). 10 toilet pans in one big open room??

 

Communal bowel emptying is a Japanese ritual??? I've read about the communal Japanese naked saunas, but this communal toilet setup is taking it to a whole new level!!

[nomadpete]

Haven't you read "The Specialist"?

 

We once had multi holers for the shearers.

[onetrack]

Gee, even in the Army we had sides on the shi**ers - even if they had no doors!

[spacesailor]

If they were , backs to the centre. in a circle  it would work much better

spacesailor 

[red750]

4 hours ago, facthunter said:

You own a Ferrari mostly to show you have one

You own a Ferrari to piss thr neighbours off.

[ClintonB]

On 16/12/2023 at 1:00 PM, onetrack said:

I actually had a complete lab of every type of chemical compounds, and many elements - right underneath the house!! I even made my own black powder with great success - although my thoughts didn't extend to making explosives with it, just burning it in the open air.

 

However, I had a big mad Slavic mate at high school, and he was convinced we could make nitroglycerine!!

Fortunately, our attempts to make it ended in failure, because of a lack of knowledge around the procedures and exact chemicals. 

One of my mates found a black powder recipient in a book and we made it and fireworks from it, we learnt how to burn wood with out a flame to get one ingredient, like an old fashion charcoal pit. The local chemist used to ask what we were up to every time we bought some of the ingredients. “School experiment” usually sufficed.

Tightly rolled up paper can make a bit of a bang we found.

[red750]

[old man emu]

1 hour ago, nomadpete said:

Haven't you read "The Specialist"?

Of course I have! Where do you think I got the inspiration to create the Cistern Chapel?

 

 

The book is sort of a talk by Lem Putt, which starts off with:

YOU'VE heard a lot of pratin' and prattlin' about this bein' the age of specialization. I'm a carpenter by trade. At one time I could of built a house, barn, church, or chicken coop. But I seen the need of a specialist in my line, so I studied her. I got her, she's mine. Gentlemen, you are face to face with the champion privybuilder of Sangamon County.

 

As Chic Sale wrote , Lem Putt -- that wasn't his real name -- really lived. He was just as sincere in his work as a great painter whose heart is in his canvas; and in this little sketch I have simply tried to bring to you recollections of a man I once knew, who was so rich in odd and likable traits of character as to make a most lasting impression on my memory. 

 

If you can't find a copy of the book, here's a link to it in pdf format

https://www.toiletrevolution.com/wp-content/uploads/The-Specialist-by-Charles-Sale.pdf

 

[red750]

[red750]