If you have a car with a manual transmission, do you rest your hand on the gear lever while driving? According to Matthias Strixner, an expert with German technical inspection agency Tüv Süd ...

SMC proteins can reverse direction, reshaping DNA and solving key scientific debates. This discovery could impact research on ...

As one gear turns, the other gear must also turn. Where the gears meet, the teeth must both move in the same direction. In the diagram, the teeth of both gears move upwards. This means that the ...