• ARRSE have partnered with Armadillo Merino to bring you an ARRSE exclusive, generous discount offer on their full price range.
    To keep you warm with the best of Merino gear, visit www.armadillomerino.co.uk and use the code: NEWARRSE40 at the checkout to get 40% off!
    This superb deal has been generously offered to us by Armadillo Merino and is valid until midnight on the the 28th of February.

negative mass

  1. GrumpyWasTooCheerful

    Newton's Laws proved or disproved?

    Physicists observe 'negative mass' - BBC News It sounds absolutely fascinating but to me it seems to chuck Newton's laws out of skew. Help?