Leaders of the pack

 作者:农洫蛸     |      日期:2019-03-06 06:03:03
RACING cyclists often ride in packs so they can reduce wind drag. But some say that this gives poorer cyclists an unfair advantage, as they can tag along behind the leaders. Now Graeme Ackland and David Butler of the University of Edinburgh have put together a mathematical model that describes how this clumping happens. Cyclists speed up whenever they see someone ahead, but the researchers found a surprising critical threshold: