R is a velocity of measure, defined as a reasonable speed of travel that is consistent with health, mental well-being, and not being more than, say, five minutes late. It is therefore clearly as almost infinite variable figure according to circumstances, since the first two factors vary not only with speed as an absolute, but also with awareness of the third factor. Unless handled with tranquility, this equation can result in considerable stress, ulcers, and even death.
Douglas AdamsOne day old Thrashbarg said that Almighty Bob had declared that he, Thrashbarg, was to have first pick of the sandwiches. The villagers asked him when this had happened, exactly, and Thrashbarg said it had happened yesterday, when they weren't looking. 'Have faith,' Old Thrashbarg said, 'or burn!' They let him have first pick of the sandwiches. It seemed easiest.
Douglas AdamsTime, we know, is relative. You can travel light years through the stars and back, and if you do it at the speed of light then, when you return, you may have aged mere seconds while your twin brother or sister will have aged twenty, thirty, forty or however many years it is, depending on how far you traveled. This will come to you as a profound shock, particularly if you didn't know you had a twin brother or sister.
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