Can you tell the density of the watermelon from this photograph?

Based on a photograph, the density of a watermelon floating in a pail of water is estimated with different levels of simplification--with and without consideration of refraction and three-dimensional effects. The watermelon was approximated as a sphere. The results of the theoretical estimations wer...

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Bibliographic Details
Published in:Physics education 2010-07, Vol.45 (4), p.352-355
Main Authors: Foong, See Kit, Lim, Chim Chai
Format: Article
Language:English
Subjects:
Computation
Density
Equations (Mathematics)
Food
Measurement Techniques
Photography
Physics
Science Instruction
Scientific Principles
Water
Water melons
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Description
Summary:Based on a photograph, the density of a watermelon floating in a pail of water is estimated with different levels of simplification--with and without consideration of refraction and three-dimensional effects. The watermelon was approximated as a sphere. The results of the theoretical estimations were verified experimentally. (Contains 6 figures.)
ISSN:0031-9120
1361-6552
DOI:10.1088/0031-9120/45/4/004