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Investigating atmospheric electricity in normal cloudy conditions, but not during a thunderstorm
Filename: 917_05_011084.jpg
Size: 3530 x 2685 (6.1MB)
Date: 27th March 2014
Source: Universal Images Group (UIG)
© Universal History Archive/Universal Images Group
Wall Art and Photo Gifts from Universal Images Group (UIG)
Investigating atmospheric electricity in normal cloudy conditions, but not during a thunderstorm
Investigating atmospheric electricity in normal cloudy conditions, but not during a thunderstorm. GF: windlass for raising and lowering a kite. AB: wooden frame supported by mahogony legs with glass cones covered with brass funnels to prevent glass getting wet. H: drawing spark from conductor and experiencing shock similar in strength to that from a fully charged Leyden jar. Leyden jar was attached to conductor, but it was not fully charged. Engraving from Practical Electricity and Galvanism by John Cuthbertson (London, 1807)
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Media ID 9754885
© Universal History Archive/Universal Images Group
1807 Atmospheric Attached Brass Charged Cloudy Conditions Conductor Covered Drawing Electricity Frame Glass Investigating John Kite Legs Leyden Lowering Normal Physics Practical Prevent Raising Science Shock Similar Strength Supported Thunderstorm Wooden Cones Cuthbertson Experiencing Fully Funnels Galvanism Spark Windlass
EDITORS COMMENTS
This engraving takes us back to the year 1807, offering a glimpse into the world of scientific exploration. The image showcases an intriguing experiment in atmospheric electricity, specifically focusing on normal cloudy conditions rather than thunderstorms. The scene unfolds with meticulous detail - a wooden frame supported by elegant mahogany legs stands tall, holding glass cones covered with brass funnels. These protective measures ensure that the delicate glass remains dry throughout the investigation. A windlass, operated by GF (presumably initials of an assistant), is used to raise and lower a kite, playing a crucial role in this study. Intriguingly, we witness H drawing sparks from a conductor and experiencing an electric shock akin to that produced by a fully charged Leyden jar. Although not mentioned whether it was intentional or accidental, it adds an element of excitement to this scientific endeavor. John Cuthbertson's engraving comes from his renowned work "Practical Electricity and Galvanism" providing valuable insights into early physics experiments conducted during this era. This historical artifact reminds us of humanity's ceaseless curiosity about our natural surroundings and our relentless pursuit of knowledge. As we gaze upon this print, we are transported back in time to witness firsthand the passion for discovery that drove scientists like John Cuthbertson over two centuries ago – forever shaping our understanding of atmospheric electricity and paving the way for future breakthroughs in science.
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