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edwin_m's latest activity

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    Starmer was obliged to support Corbyn's policies when in his shadow cabinet due to collective responsibility - the alternative would...
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    edwin_m replied to the thread Double third rail query.
    I've an idea the 450s and 444s originally had diodes to prevent regeneration occurring, as that was outside their safety case until...
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    edwin_m replied to the thread Double third rail query.
    This seems logical on the assumption that each 378 is split in two electrically, though noted there is no confirmation of this. The...
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    If random bursts are less than about a second then they could be from arcing on the third rail, which is broad spectrum so likely to...
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    The limit of my hopes at the moment is that Labour will put a stop to the Tories causing more damage, and start us on what will be a...
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    In the UK (and to be fair in most other countries), however good your local MP might be personally, they will end up voting most of the...
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    edwin_m replied to the thread Calculating Railway Height.
    Thanks for this. I believe Timepix is free to browse - I certainly did so extensively while trying to find various scenes from where I...
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    In the interests of fairness it should be pointed out that Wragg resigned the Tory whip and committee chairmanship when his response to...
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    edwin_m replied to the thread Calculating Railway Height.
    I think these are actually spot heights, which show as a dot on the map but aren't identified on the ground as benchmarks are. Hence...
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    edwin_m replied to the thread Calculating Railway Height.
    Rounding to the nearest even number means that a the average of a set of numbers will be affected less by the rounding. The alternative...
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    Green electricity would only be subsidising rail freight if Network Rail was paying substantially less for it than they would for...
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    edwin_m replied to the thread Calculating Railway Height.
    I found this website with a huge number of photographs from the 1950s, of Ordnance Survey people taking photos of spot heights around...
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    Actually it didn't (past tense as it's cancelled). The need to provide Leicester and the other stations south of East Midlands Parkway...
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    The guard used to keep the door open and watch as the train left the platform, which on Tube-sized stock meant that their head was...
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    There will be some sort of control to ensure that the signal is replaced to danger before the previous signal can be cleared for another...

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