charles wrote in
:

In article ,
whisky-dave wrote:
On Tuesday, February 5, 2013 3:27:09 PM UTC, DerbyBorn wrote:
Just back from a holiday and whilst there I refelcted on a few
differences

seen there and other places (not really DIY) and wondered if others
had

thought of similar things. Examples:



Bulgaria - Traffic Lights with an illuminated count-down in red or
green

to the next change.



Dublin - Traffic lights with ped crossing countdowns - that are
made of

stainless steel and don't look as though they were made in the
1950's (like

ours)



Lanzarote - In our villa - door frame with integral rubber seal to
prevent

banging - well engineered door and frame with stainless steel
hinges.



any others? Comments?

Esculators at tube stations only coming on when people were using
them.
Think it was a light sensor triggered as you apporach the stairs.
Stockholm 1985.

seen in Hamburg 1979.


I have wondered if it is possible to link the upward and the downward
escalator to reduce the power by counterbalancing the loads.