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wonder how much the air pressure in the big balloon will affect things.
Much less than the fact that they're at >6000' asl. The pressure needed to keep those inflatable building up is tiny, 10mb would be heavy duty.
Absolute pressure at the velodrome was reported as 812mb
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Hutch said 70m I think on twitter yest for the balloon pressure
gbj_tester
hippy
@ewanmac
So how much will the concrete surface affect crr vs typical wooden surface? And also I wonder how much the air pressure in the big balloon will affect things.