Comments on: Tour stage 4: Why we’re world-class time trialers http://www.slipstreamsports.com/2008/07/09/tour-stage-4-world-class-performances Professional Cycling Team Fri, 09 Jan 2009 02:04:13 +0000 http://wordpress.org/?v=2.3.2 By: Hilary http://www.slipstreamsports.com/2008/07/09/tour-stage-4-world-class-performances#comment-9832 Hilary Fri, 18 Jul 2008 07:28:14 +0000 http://www.slipstreamsports.com/2008/07/09/tour-stage-4-world-class-performances#comment-9832 @curiousrider: Elementary physics. 858 kJ is work done. No engine is 100% efficient (can't be, according to the laws of thermodynamics) and most are very inefficient. So the amount of energy burnt as fuel (measured in calories) will far exceed the amount of energy output as useful work (measured in kJ). @curiousrider: Elementary physics. 858 kJ is work done. No engine is 100% efficient (can’t be, according to the laws of thermodynamics) and most are very inefficient. So the amount of energy burnt as fuel (measured in calories) will far exceed the amount of energy output as useful work (measured in kJ).

]]> By: Curious Rider http://www.slipstreamsports.com/2008/07/09/tour-stage-4-world-class-performances#comment-9828 Curious Rider Fri, 18 Jul 2008 06:32:36 +0000 http://www.slipstreamsports.com/2008/07/09/tour-stage-4-world-class-performances#comment-9828 Silly Question: DM's expenditure was 858 KJ, which equates to 205 calories expenditure for 36 minutes. I would have thought that 1225 would have been closer to what would have been expended. Silly Question:

DM’s expenditure was 858 KJ, which equates to 205 calories expenditure for 36 minutes.

I would have thought that 1225 would have been closer to what would have been expended.

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