Mathematicians Of The Day

25th February



On this day in 1598, John Dee demonstrated the solar eclipse by viewing an image through a pinhole. Aubrey says he showed it to the Polish ambassador. Dee's Diary only contains:-
"the eclipse. A cloudy day, but great darkness about 9129\large\frac 1 2 minutes.
See THIS LINK.

Click on for a poster.


Quotation of the day

From Hugo Steinhaus
Mathematics is an intermediary between spirit and matter.