Smartphones and Time Zones

William Baird ^[2] ; Jeffery Secrest ^[2] ; Clifford Padgetrmstrong State University ^[2] ; Wayne Johnson ^[2] ; Claire Hagrelius ^[1]
1. [1] University of Illinois at Urbana Champaign
  
  University of Illinois at Urbana Champaign
  
  Township of Cunningham, Estados Unidos
2. [2] Armstrong State University
Localización: The Physics Teacher, ISSN 0031-921X, Vol. 54, Nº. 6, 2016, págs. 351-353
Idioma: inglés
Texto completo no disponible (Saber más ...)

Resumen
- Using the Sun to tell time is an ancient idea, but we can take advantage of modern technology to bring it into the 21st century for students in astronomy, physics, or physical science classes. We have employed smartphones, Google Earth, and 3D printing to find the moment of local noon at two widely separated locations. By reviewing GPS time-stamped photos from each place, we are able to illustrate that local noon is longitude-dependent and therefore explain the need for time zones.