Dr Anderson and his team have, of course, gone through painstaking efforts to rule out conventional physical explanations and systematic errors.

ECONOMIST: Physics

They're a tough side and very physical and managed to force errors.

BBC: St Helens won the Challenge Cup against Catalans Dragons

Glasgow were overpowered by a very physical home side and made too many errors to build any momentum, while Dan Parks had a rare off night - missing eight points' worth of kicks.

BBC: Timing of Ospreys points-deduction pains Glasgow

Baltacha used her physical presence to force her opponent into making errors, as she broke her serve for a second time in the seventh game before securing the first set.

BBC: Elena Baltacha, Melanie South & Katie O'Brien go out