A volumetric flask as a projector

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Author list: Limsuwan P., Asanithi P., Thongpool V., Piriyawong V., Limsuwan S.

Publisher: IOP Publishing

Publication year: 2012

Journal: Physics Education (0031-9120)

Volume number: 47

Issue number: 2

Start page: 155

End page: 161

Number of pages: 7

ISSN: 0031-9120

eISSN: 1361-6552

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84857603341&doi=10.1088%2f0031-9120%2f47%2f2%2f155&partnerID=40&md5=ff080c255610e12c1d9c1d6335b0fed5

Languages: English-Great Britain (EN-GB)

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Abstract

A lens based on liquid in the confined volume of a volumetric flask was presented as a potential projector to observe microscopic floating organisms or materials. In this experiment, a mosquito larva from a natural pond was selected as a demonstration sample. By shining a light beam from a laser pointer of any visible wavelength through the volumetric flask filled with liquid, the movements of floating objects were clearly observed on a screen. The magnification was simply controlled by changing either the volume of the flask or the distance of the screen from the flask. ฉ 2012 IOP Publishing Ltd.

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