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Backstop

Member since Mar 2012 • Last active May 2016

Bikes.
Astrophysics.
Arsenal.

quote

Most recent activity

  • in General
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    The last I read, from twitter so it's probably true, is that drivers breath in more particulates due to the air movement being less inside a closed box. Cyclists benefit from a movement of air...

  • in Rides & Races
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    ooh, Southend or Whitstable... probably whistable for the sake of being on tarmac.

  • in Mechanics & Fixin'
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    The word fixie is seen as a bit naff round these parts, make of that what you will.

    That chain is dangerous at its current tension. Tightening the chain is something you'll get used to, depending on how many punctures you get. The basic technique is just pulling back the wheel and tightening the nuts. How you pull back the wheel is the trick, that sheldon page is all you need.

  • in Miscellaneous and Meaningless
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    Cheers, that's exactly what I came here for!

  • in Miscellaneous and Meaningless
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    But the need for insulation and wiring does preclude the use of 2x4 stud walls.

    How so?

  • in Miscellaneous and Meaningless
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    hah, 6' by 8' roughly, then. 2x4's a reasonable bit of wood for a small project?

  • in Miscellaneous and Meaningless
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    That's a good point about it all locking together at some point. What section timber would you say is adequate for the wall frames? Rough dimensions are 2x3x2 metres.

  • in General
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    As a teaching site rather than research these days. It's the largest collection of operating telescopes in London (I reckon). Obviously when it was built it was quite dark up in the villages, now it borders the 6 lane Watford Bypass...

  • in Miscellaneous and Meaningless
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    That sounds like a lot more work than the coach bolt method mentioned above. And I have a few of those spare.

  • in General
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    Blimey skully, that was a long trip, I was expecting this to go to a northerner!

    UCL observatory was the destination of a couple of rides I lead a year or so ago and until recently i was working there. So I wanted to get in a pick while I was still visiting the site.

    The observatory has been there since the 1930s, it houses a twin 7 metre refracting telescope, several modern computer controlled scopes and a 150 year old 3 metre refractor which runs off clockwork.
    Recent discoveries have included an exo-planet and the first fiber fed spectra taken inside the M25.

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