Penny-farthing the trend was short-lived, the penny-farthing became a symbol of the late Victorian era. Its popularity also coincided with the birth of cycling as a sport. Eugène Meyer of Paris, France is now regarded as the father of the high bicycle by the International Cycling History Conference in place of James Starley. Meyer patented a wire-spoke tension wheel with individually adjustable spokes in 1869. They were called "spider" wheels in Britain when introduced there. Meyer produced a classic high bicycle design during the 1880s. James Starley in Coventry added the tangent spokes and the mounting step to his famous bicycle
Cryptanalysis of the Enigma the positions in which a female could occur. The set of sheets for that day's messages would be appropriately positioned on top of each other in the perforated sheets apparatus. Rejewski wrote about how the device was operated: The holes in the sheets were painstakingly cut with razor blades and in the three months before the next major setback, the sets of sheets for only two of the possible six wheel orders had been produced. After Rejewski's characteristics method became useless, he invented an electro-mechanical device that was dubbed the "bomba kryptologiczna" or "cryptologic bomb". Each machine contained six sets