Smartphones and time zones

William H. Baird; Jeffery A. Secrest; Clifford W. Padgett; Wayne M. Johnson; Claire Hagrelius

doi:10.1119/1.4961177

Smartphones and time zones

William H. Baird, Jeffery A. Secrest, Clifford W. Padgett, Wayne M. Johnson, Claire Hagrelius

Biochemistry, Chemistry & Physics

Research output: Contribution to journal › Commentary

4 Scopus citations

Abstract

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.

Original language	English
Pages (from-to)	351-353
Number of pages	3
Journal	Physics Teacher
Volume	54
Issue number	6
DOIs	https://doi.org/10.1119/1.4961177
State	Published - Sep 2016

Scopus Subject Areas

Education
General Physics and Astronomy

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10.1119/1.4961177

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title = "Smartphones and time zones",

abstract = "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.",

author = "Baird, {William H.} and Secrest, {Jeffery A.} and Padgett, {Clifford W.} and Johnson, {Wayne M.} and Claire Hagrelius",

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AU - Secrest, Jeffery A.

AU - Padgett, Clifford W.

AU - Johnson, Wayne M.

AU - Hagrelius, Claire

PY - 2016/9

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N2 - 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.

AB - 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.

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Smartphones and time zones

Abstract

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