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Questions and Answers
Who found that cathode rays could penetrate thin metal and would project a few cm into the air?
Who found that cathode rays could penetrate thin metal and would project a few cm into the air?
- William Gilber
- Philipp Lenard (correct)
- Johann Heinrich Schulze
- Charles du Fay
Who produced the first recognized vacuum?
Who produced the first recognized vacuum?
- Thales
- Evangelista Torricelli (correct)
- William Gilber
- Otto von Guericke
Who discovered some of the effects of electricity?
Who discovered some of the effects of electricity?
- Richard Leach Maddox
- Thales (correct)
- Charles du Fay
- William Goodspeed
Who produced a radiograph in 1890?
Who produced a radiograph in 1890?
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Who produced a film with a gelatin silver bromide emulsion?
Who produced a film with a gelatin silver bromide emulsion?
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Who was one of the first to extensively study electricity and magnetism?
Who was one of the first to extensively study electricity and magnetism?
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Who produced the first recognized vacuum?
Who produced the first recognized vacuum?
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Who discovered some of the effects of electricity?
Who discovered some of the effects of electricity?
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Who found that cathode rays could penetrate thin metal and would project a few cm into the air?
Who found that cathode rays could penetrate thin metal and would project a few cm into the air?
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Who produced a film with a gelatin silver bromide emulsion?
Who produced a film with a gelatin silver bromide emulsion?
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