Posts Tagged ‘above’

How does a pantogram (the one above an electric train)sustain friction?

Wednesday, June 6th, 2012

Question by raghunc: How does a pantogram (the one above an electric train)sustain friction?

Best answer:

Answer by Craigory
I think you mean pantograph.

Anyway, they are spring-loaded so they maintain a specific upward contact force with the overhead wire. This force is controlled rather carefully so that the pantograph and wire are not damaged over the operating speed range of the vehicle.

For higher-speed applications, special measures are taken to tune the aerodynamics of the pantograph so that the up-force is optimized for high-speed running.

The contact surface of the pantograph (the shoe) is a carbon-based material, much like a carbon brush for a DC motor. This is the surface that wears, so it is changed periodically, in order to keep the overhead wire from wearing out.

What do you think? Answer below!

High above Athens

Thursday, March 1st, 2012

High above Athens

Image by anticowboyism
Minutes away from touchdown at Athens International Airport! It looks like a little model train set.

Diploma Scales =Where can I get the RCM Grade 9,10 and above Syllabus for Scales and Sight Reading?

Monday, October 31st, 2011

Question by Aurelia: Diploma Scales =Where can I get the RCM Grade 9,10 and above Syllabus for Scales and Sight Reading?
Where can I get RCM’s Grade 9,10,11 and 12 syllabus?
I want to look at the Aural, Scales and Sight reading Component.
I am currently doing the new syllabus for ATCL where its evaluation is 90% performance and 10% program notes.
I feel that the new syllabus is handicapped in terms of technique developement and I still need the old ATCL / Dip Ab / RCM syllabus for scales and arpeggios to push my finger technique and sight reading and ear training for overall musical development.
I don’t just want another certificate but overall technique and musicality.

I am currently doing ABRSM Grade 8 scales which I played for my exam at minim = 88. I am thinking to push my speed to 90 or 96 or more.
Arppegios – I improvised my Grade 8 Arppegios to play them in 3rds and 6ths.
I am also playing major scales in 3rds from Hanon in C, D, F, G, A, Major Double Octave scales ,and chromatic scales in 3rds and 6ths.

This is all so confusing,I feel that it is easier to have a specific exam syllabus to refer to as then I will know how far or how much to practise in the correct way and correct expected speed at this level. A booklet of diploma scales will be handy and much appreciated!

thanks a million!!!!!

Best answer:

Answer by Chinese Cowboy
You can buy the syllabus from www.frederickharrismusic.com.

Know better? Leave your own answer in the comments!

Port/Matmoras from above

Thursday, September 1st, 2011

Port/Matmoras from above

Image by Kethera
A shot from Elks-Brox Park in Port Jervis, NY.

Looks like a model train layout :oP

Subscribe to RSS feed

Dallas Cowboys vs. New York Jets    Watch Pittsburgh Steelers vs Baltimore Ravens live stream, NFL, week 1, 11.09.2011  Live TV Streams Discussions