2008, february 8th

Friday 8th, we had a web rendez-vous on Wengomeeting, with Lyon and Arras.
Quentin filmed the gnomon with the webcam#1 .
The webcam#2 is facing Dorian.




2008, february 12th

Drawing meridian lines at solar noon






2008, february 13th

The shadow of a 1 meter gnomon (13:46 to 15:12  TU+1)
The gnomon is too high, it is not adapted for an observation on a longuer period.






video-13fevr.mov : open a new window
video-13fevr.wmv : open a new window




2008, february 15th



The shadow of a 51.5cm high gnomon (11:07 to 17:01)




video-2008-02-15.mov : open a new window
video-2008-02-15.wmv : open a new window

The computer clock is 11min early:
Solar noon is 13:09