The SciencesPhysics In CourtComputations by Which Police Can Work Out Driving Speeds from Skid Marks after AccidentsBy C. W. Sheppard on September 1, 1940AdvertisementABOUT THE AUTHOR(S)Recent Articles by C. W. SheppardAtom Smashing: Two MethodsThe Evanescent MesotronA Big Gun of Science