3 ms·
New York based isochronic map: http://quod.lib.umich.edu/g/genpub/abl7462.0001.001/390?view=image&size=400 http://quod.lib.umich.edu/g/genpub/abl7462.0001.001/3
by lurker10000 11y ago
New York based isochronic map:
http://quod.lib.umich.edu/g/genpub/abl7462.0001.001/390?view=image&size=400 http://quod.lib.umich.edu/g/genpub/abl7462.0001.001/390?view...
- wmf 11y agoThis is particularly interesting because it shows the advance over time.