LOG SINES, COSINES &c...
On the 1st April our Meles mentioned five decimal log tables which ticked my nostalgia box & I fished out my old "Norie's Nautical Tables" (extra) - 643 pages of concentrated five decimal stuff.
There was no GPS in my day & we needed to calculate our longitude by means of a sextant, a chronometer slung on gimbals in a dust-free box with a glass lid & these magical tables + 25 minutes of frantic calculation.
We would be lucky to get accuracy within a mile, but it was still magic having crossed the Indian Ocean - 8 days - to see the Fremantle lighthouse pop up dead ahead!
Too easy these days!
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- Panasonic DMC-TZ60
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