The Electromagnetic Spectrum - History
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7 terms
Terms | Definitions |
|---|---|
 Roger Bacon | Observed visible light in the 13th century |
| Sir Isaac Newton | Experimented with prisms in the 17th century |
| William Herschel | discovered infrared (increase in temperature just beyond the red end of the visible light spectrum) in 1800 |
| Johann Ritter | observed that just beyond the violet end has the ability ot cause a chemical reaction with certain types of metals (UV) in 1801 |
| Heinrich Hertz | generated and detected waves; expanded this experiment for higher frequencies - Radio waves and microwaves (in 1888) |
| Wilhelm Roentgen | discovered radiation while conducting experiments with cathode ray tubes - x-rays (1895) |
| Paul Villiard | discovered gamma rays (the "last" type of electromagnetic radiation) |
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