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Pictet / Gas Experiment

Pictet  /  Gas Experiment


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Pictet / Gas Experiment

Raoul Pictet, Swiss physicist, conducts an experiment to liquefy and solidify hydrogen gas, and studied properties of substances at low temperatures

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Media ID 617884

© Mary Evans Picture Library 2015 - https://copyrighthub.org/s0/hub1/creation/maryevans/MaryEvansPictureID/10085075

1877 Conducts Experiment Hydrogen Physicist Properties Raoul Studied Substances Swiss Temperatures December


EDITORS COMMENTS
This photograph captures the historic moment when Swiss physicist Raoul Pictet successfully liquefied and solidified hydrogen gas in his laboratory in December 1877. Pictet's groundbreaking experiment marked a significant milestone in the scientific understanding of the properties of substances at low temperatures. Born in Geneva, Switzerland, in 1846, Pictet was a pioneering figure in the field of low-temperature physics. He was particularly interested in the behavior of gases under extreme conditions and dedicated much of his research to studying the liquefaction and solidification of various gases. In this experiment, Pictet used a bulky and complex apparatus to cool hydrogen gas down to a temperature of -252.7 degrees Celsius, making it the first person to liquefy hydrogen. He then allowed the liquid to evaporate and cool further, resulting in the solidification of hydrogen into a pale-blue solid. The photograph shows Pictet intently observing the experiment, with a look of intense concentration on his face. The bulky equipment, including a large Dewar flask and intricate insulation, is visible in the background. The image captures the sense of excitement and discovery that came with pushing the boundaries of scientific knowledge in the late 19th century. Pictet's experiment paved the way for further research into the properties of hydrogen and other gases at low temperatures, leading to numerous technological advancements and applications in fields such as refrigeration, cryogenics, and space exploration. Today, his pioneering work continues to inspire and inform the scientific community, making this photograph a testament to the power of curiosity and the human spirit of exploration.

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