Someone asked me the following (through PM). I figured my answer might help those that are wondering the same thing.
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I don't realy get your time calculation. What's it with the 60 minutes and every mark there after? As I can see it you can only get to 16 not 24...?
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Hi,
Well, If you go clockwise full-circle around this logarithm-scale you end up at the same mark, but the value is 10 times bigger. (in some logarithm scales you end up 100 bigger, like in the U-jagd or OLC Range/AOB finder wheel, but I digress...) So, as the 6 mark is meant to be 6 minutes, it is also the same as the 60 minute mark eventhough the 0 is not shown. If you count counterclockwise, you end up at the same mark but it is now 36 seconds (6 minutes/10= 360seconds/10= 36 seconds). See that that 6 mark is just to the right of the 35 seconds mark in the skin-colored area. Also check the 2 minute mark being above the number 12 in the skincolored area; there are 120 seconds in 2 minutes.
Now, If that 16 minute mark is the same one as the 160 minute mark, then you can calculate with times upto 2 hours and 40 minutes (simply because 2 hours is 120 minutes, and 40 more is 160 minutes). ONLY, you must be aware that the distance is also 10 times more than what the mark for that scale shows.
It's easy to misplace the decimal point with these tools, but doing the multiplication/division yourself takes alot longer to do, with possibly more errors too.
Mind boggling, isn't it !?!
