Maggie Ray asked:
Does a good jockey actually make a horse go faster despite the extra weight and aero dynamic drag?
Chris - Just looking at Andrew Spence's paper in Science. He was the guy talking to us earlier and actually pointed out the jockey contributes about 13% of the weight of horse and rider and when you load a horse up it does run slower. They’ve got evidence to show that, so the jockey does slow the horse down but a good jockey by adopting this posture and also pumping the knees up and down, they’re saying could effectively contribute energetically to the running horse. So, yes they could potentially make a contribution and that’s why a good rider has this skill.