Originally posted by oiaohm
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If you can share the photos you speak of, I'd be very pleased.
Originally posted by oiaohm
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15% is like the limit of what is considered "normal" (and if you recall statistics well, about 67% of the population is "normal" or "average") so you are just about >1<<1.2 standard deviations from the mean.
I do still believe it could be fixed by stretching (of course depending on age and "mileage" or usage (take a picture of Devon Laratt with his arm extended as far as it can go, but in his fifties and after decades of armwrestling I doubt you can make it go straighter).
Also, iirc correctly from anatomy classes, having straighter arms is more common in men, women usually have a more pronounced angle - I'm not sure exactly what it was called, but it even had a name, but it had something to do with the proportion of shoulder width to hips (women have wider hips than men, men have broader shoulders, on average).
Also you are incorrect in that usually, for the average person, the tendons limit wrist movement. Being limited by the bones is often associated with pain and is provably due to hypermobility. Not necessarily bad hypermobility, could be benign, but still hypermobile.
By the way, I didn't mean that typewriters were designed with women in mind - I believe the makers of keyboards didn't have any ergonomics in mind at all (take for example those prototype typewriters that used piano keys, I can see that influencing the size more than any aspect of the human body) - what I mean to say is that the early typewriters were changed many times, a few of those times due to feedback from users (the big example being the qwerty layout having to do with typesetters and telegraph operators), so while I fully disagree that typewriters were "designed for men of tall height" (paraphrasing what you said), I don't think they were designed for women, but there were changes to the machines when rubber met the road and people started using them in numbers, and things could be changed for smaller people if that was the case.
I'd actually argue the size of typewriter keyboards was limited by technology - Christopher is said to have wanted one (before inventing it) so he could type contracts while he was on the train - so they wanted the size to be as portable as they could make wgile having cost not balloon out of control (if they were to make the linkages like Swiss watchmakers made theirs).
Also remember that papermills already were making paper in foolscap size, and if you cut foolscap paper in half you have approx. the same size as imperial Letter size. I fully believe this was also a constraint they had while making their typewriters.
So as wide as they need to have half a foolscap sheet fit it, as short in depth as they could, so it could fit in small desks and hand luggage (later with the "portable" models even a briefcase)
Another interesting tidbit of typewriting history is that they marketed it as not giving its users "telegraphist" paralysis and writer's cramp, as those other had put too much strain on their wrists, and typewriters were to be operated with movement basically only at the elbow.
Turns out that yeah, they were completely wrong. But it isn't like that was a rare occurrence right, just look at medical adverts for cigarettes...
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