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It looks like the archway is filled with holes for candles. Lighting for meetings could not have been as trivial a task as it was for the researchers, who seem

It looks like the archway is filled with holes for candles. Lighting for meetings could not have been as trivial a task as it was for the researchers, who seem to have been able to toss down some cheap super bright LEDs(?). An hour of good lighting in a subterranean cave in those days must have cost a fortune. (Per Jane Brox, anyway...) https://www.amazon.com/Brilliant-Evolution-Artificial-Jane-Brox/dp/0547520344 https://www.amazon.com/Brilliant-Evolution-Artificial-Jane-B...

knz 10y ago
I'm curious if you recommend the linked book?
- brownbat 10y ago
  The Planet Money discussion was a good teaser: http://www.npr.org/2014/05/02/309040279/in-4-000-years-one-thing-hasnt-changed-it-takes-time-to-buy-light http://www.npr.org/2014/05/02/309040279/in-4-000-years-one-t...