Image:Familiar Introduction to Electricity by Joseph Priestly, plate 7.jpg

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[edit] Summary

Description

The 7th plate from the 1st edition (1768) of Joseph Priestley's A Familiar Introduction to the Study of Electricity, depicting an electrical machine designed by Priestley
Source

Photographed from Medical Historical Library of Yale University by the uploader
Date

1768
Author

Joseph Priestley
Permission
(Reusing this image)

see below

[edit] Licensing

Public domain This image (or other media file) is in the public domain because its copyright has expired.

This applies to the United States, Canada, the European Union and those countries with a copyright term of life of the author plus 70 years.

Note that a few countries have copyright terms longer than 70 years: Mexico has 100 years, Colombia has 80 years, and Guatemala and Samoa have 75 years. This image may not be in the public domain in these countries, which moreover do not implement the rule of the shorter term. Côte d'Ivoire has a general copyright term of 99 years and Honduras has 75 years, but they do implement that rule of the shorter term.

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Date/TimeDimensionsUserComment
current06:18, 17 June 20071,287×1,658 (507 KB)Ragesoss ({{Information |Description=The 7th plate from the 1st edition (1768) of Joseph Priestley's ''A Familiar Introduction to the Study of Electricity'', depicting an electrical machine designed by Priestley |Source=Photographed from Medical Historical Library )
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Metadata

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Camera manufacturer Canon
Camera model Canon PowerShot S2 IS
Exposure time 1/100 sec (0.01)
F-number f/4
Date and time of data generation 14:47, 14 June 2007
Lens focal length 6 mm
Orientation 0
Horizontal resolution 180 dpi
Vertical resolution 180 dpi
File change date and time 14:47, 14 June 2007
Y and C positioning 1
Exif version 2.2
Date and time of digitizing 14:47, 14 June 2007
Image compression mode 3
Aperture 4
Exposure bias 0
Maximum land aperture 2.875
Metering mode Pattern
Flash 16
Color space 65535
Focal plane X resolution 11520
Focal plane Y resolution 11571.428571429
Focal plane resolution unit inches
Sensing method One-chip color area sensor
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Exposure mode Auto exposure
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Digital zoom ratio 1
Scene capture type Standard
Unique image ID 7b4790f95741371966ace270cb4832a6