Event Title
Session F: Contributed Oral Papers – F1: Physics Education: The Dating Game -- with Google Maps and Vector Algebra
Location
Auditorium, Campus Center, University of Massachusetts - Amherst
Event Website
http://blogs.umass.edu/nes2011/
Start Date
19-11-2011 9:00 AM
End Date
19-10-2011 9:12 AM
Description
By measuring the shadow in a photograph of a known object at a known location you can determine the date at which the photo was taken. Photos from Google Maps or Google Earth come with latitude and longitude to six decimal places, enough precision to find the location and scale size of objects in the picture.~~The transformation of the quantities measured on the photograph into celestial coordinates is a nice exercise in 3-D visualization and the use of vector algebra. ~We show an example of the use of vectors to extract geometric information from a Google Map photo and then use the results to find the date on which it was taken.
Session F: Contributed Oral Papers – F1: Physics Education: The Dating Game -- with Google Maps and Vector Algebra
Auditorium, Campus Center, University of Massachusetts - Amherst
By measuring the shadow in a photograph of a known object at a known location you can determine the date at which the photo was taken. Photos from Google Maps or Google Earth come with latitude and longitude to six decimal places, enough precision to find the location and scale size of objects in the picture.~~The transformation of the quantities measured on the photograph into celestial coordinates is a nice exercise in 3-D visualization and the use of vector algebra. ~We show an example of the use of vectors to extract geometric information from a Google Map photo and then use the results to find the date on which it was taken.
https://scholarworks.umass.edu/climate_nuclearpower/2011/nov19/33