user avatar
user avatar
user avatar
Bregalad
  • Member for 3 years, 10 months
  • Last seen more than a month ago
  • France
4 votes
1 answer
171 views

Can a Foucault's current brake be used on the rails themselves to brake trains?

4 votes
2 answers
960 views

Is there any reason why "inner-flange" style trains are almost universal?

3 votes
2 answers
446 views

Why are both conductors in a High Voltage Direct Curent powerline isolated from ground?

2 votes
0 answers
75 views

Is there a particular reason the Moléson funicular is built as a giant bridge?

1 vote
1 answer
386 views

What are the factors that made narrow-gauge railways cheaper in the early 1900s, and are they still applicable today?

1 vote
4 answers
2k views

How do trolleybus switches work?

1 vote
4 answers
2k views

What determines the maximum possible slope of rail transportation (without rack)?

1 vote
2 answers
367 views

Why are trams always electrified with DC, while trains can be electrified either with AC or DC?

1 vote
1 answer
36 views

Is there any more convincing exemple of the Braess Paraxod than the diamond-shaped network?