the iron dwarf Posted April 23, 2014 Share Posted April 23, 2014 left handed and right eyed Quote Link to comment Share on other sites More sharing options...
ThomasPowers Posted April 23, 2014 Share Posted April 23, 2014 I had a student once who was having a terrible time with the hammer. After watching him for a bit striking the anvil instead of the workpiece; I asked him if he was using the dominant hand for the hammer. he replied that "no, he wanted to learn to use his off hand" I told him he was free to damage his own equipment learning to use his off hand; but he was not welcome to damage *MINE*! Quote Link to comment Share on other sites More sharing options...
Geoff Keyes Posted April 24, 2014 Share Posted April 24, 2014 Steve, you claimed that there are populations that are primarily left handed, which would indicate either a cultural bias in handedness, or some sort of strong genetic component. If that were true, then I would expect every article about handedness in humans to mention it. Everything I have read and can find on the subject says the same thing. Populations of humans are predominately right hand dominate, with 10-30% of the population being left hand dominate. If you count mixed hand dominate you get the higher , 30%, number. There is some evidence, not well attested to, that the number is rising. No one has found a strong genetic component. Hand dominance appears to be set before birth, but the mechanism is unclear. As far as I can tell hand dominance does not appear to run in families. If you have evidence to the contrary, I'd like to see it. BTW, horses are nearly all left dominate (it's why all horse races are run counterclockwise) , great apes don't seem to show any preference, and elephants appear to be evenly split. I suspect that NASCAR races are all left turns out of tradition. Geoff Quote Link to comment Share on other sites More sharing options...
ausfire Posted April 24, 2014 Share Posted April 24, 2014 Our sulphur-crested cockatoos are all left handed (or footed). Quote Link to comment Share on other sites More sharing options...
RogueRugger Posted April 24, 2014 Share Posted April 24, 2014 FWIW RadioLab had a nice podcast on handedness: http://www.radiolab.org/story/whats-left-when-youre-right/ Discussed are various myths and theories, including the impact on boxing and the handedness of parrots. Quote Link to comment Share on other sites More sharing options...
Everything Mac Posted April 29, 2014 Author Share Posted April 29, 2014 The results surprise me - the number of *ambidextrous* people out there. All the best Andy Quote Link to comment Share on other sites More sharing options...
Chris john Posted April 29, 2014 Share Posted April 29, 2014 Sems to be a few of us clutzes out there lol Famous Left - Handers Quote Link to comment Share on other sites More sharing options...
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