Local Heroes Method To measure the size of the earth using Eratosthenes method, you need to measure the length of a shadow somewhere north (or south) of Aswan at noon on Midsummers day.
(Local Heroes Method; To measure; the size of the earth) (you; need; to measure the length of a shadow somewhere north (or south) of Aswan at noon on Midsummers day) Context(you need,List([80, 88))):(you; need to measure; the length of a shadow)
you need,List([80, 88))
Local Heroes Method you you
To measure need need to measure
the size of the earth
to measure the length of a shadow somewhere north (or south) of Aswan at noon on Midsummers day
the length of a shadow