James (and caption author) I think you're missing something. When wiping one's bum, there is little reason to bend the elbow much since the length of the arm approximates the distance between the shoulder and bum. If you consider a triangle formed by the distance between the shoulder and bum as one side, and the other two sides formed by the forearm and upper arm and the elbow forming one angle of the triangle, the bend of the elbow is an obtuse angle thus forming an obtuse triangle. When the arm is longer and the shoulder-to-bum side is the same and the arm forming the other two sides is longer, it merely takes a bigger bend of the elbow to accomplish the triangle, which then becomes an acute triangle and thus wipeage of the bum is accomplishable as long as the the two segments of the arm are of similar length.
* This comment was created in 108 degree weather with a semi-functioning air conditioner. Once it cools, I may read it and wonder wtf I was thinking. Your results may vary.
True Willie, however, the average width of a room or cubicle containing a toilet is 113cm, and the average distance from a male shoulder to their anus is 72cm. By Pythagoras we can establish that a man with 200cm long arms, but otherwise normal proportions, would require elbow room of at least 93cm in order to wipe their arse, much more than the 56.5cm available on average.
Even allowing for a 45 degree rotation backward or forward (depending on whether the male in question is a round the back, or through the legs wiper) the distance from anus to wall would only measure 80cm, still less than required.
DISCLAIMER: Figures are fictional, and the maths is probably wrong.
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Until now, I've never contemplated the fact that human arms are exactly the right length for wiping our bums. Thank-you.
10:22pm
Cheers James. Next week, how your middle toe can be useful when camping
10:59pm
James (and caption author) I think you're missing something. When wiping one's bum, there is little reason to bend the elbow much since the length of the arm approximates the distance between the shoulder and bum. If you consider a triangle formed by the distance between the shoulder and bum as one side, and the other two sides formed by the forearm and upper arm and the elbow forming one angle of the triangle, the bend of the elbow is an obtuse angle thus forming an obtuse triangle. When the arm is longer and the shoulder-to-bum side is the same and the arm forming the other two sides is longer, it merely takes a bigger bend of the elbow to accomplish the triangle, which then becomes an acute triangle and thus wipeage of the bum is accomplishable as long as the the two segments of the arm are of similar length.
* This comment was created in 108 degree weather with a semi-functioning air conditioner. Once it cools, I may read it and wonder wtf I was thinking. Your results may vary.
11:09pm
True Willie, however, the average width of a room or cubicle containing a toilet is 113cm, and the average distance from a male shoulder to their anus is 72cm. By Pythagoras we can establish that a man with 200cm long arms, but otherwise normal proportions, would require elbow room of at least 93cm in order to wipe their arse, much more than the 56.5cm available on average.
Even allowing for a 45 degree rotation backward or forward (depending on whether the male in question is a round the back, or through the legs wiper) the distance from anus to wall would only measure 80cm, still less than required.
DISCLAIMER: Figures are fictional, and the maths is probably wrong.
11:44pm