History of the bicycle boneshaker, the front wheel enlarging to enable higher speeds (limited by the inside leg measurement of the rider), the rear wheel shrinking and the frame being made lighter. Frenchman Eugène Meyer is now regarded as the father of the high bicycle by the ICHC in place of James Starley. Meyer invented the wire-spoke tension wheel in 1869 and produced a classic high bicycle design until the 1880s. James Starley in Coventry added the tangent spokes and the mounting step to his famous bicycle named "Ariel." He is regarded as the father of the British cycling industry. Ball bearings, solid rubber
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