Blood for Oil

[armb]

I have my electric bike battery charging now (Eddie emailed yesterday to say they were in the shop). There's still some more work putting the kit together to do, but should be sorted this weekend.

Also, how instabilities in dense traffic tip into "causeless" jams: http://technology.newscientist.com/article/dn13402-shockwave-traffic-jam-recreated-for-first-time.html
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