EM Spectrum Timeline
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EM Spectrum Timeline | How did the electromagnetic spectrum develop?
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- Šmykľavka: 1
- Ibn al-Haytham - circa 1015
- Al-Haytham showed that light travels in straight lines through different optical experiments.
- Šmykľavka: 2
- William Herschel - 1800
- Herschel discovered infrared when he was experimenting to see the change in temperature of the different colors of light.
- Šmykľavka: 3
- Johann Ritter - 1801
- Ritter was looking at how fast silver chlroide changed when exposed to different colors of light. The silver chloride turned black fastest just outside the violet part. We now know this to be ultraviolet radiation.
- Šmykľavka: 4
- Heinrich Hertz - 1886
- Hertz was the first person to send and receive radio waves.
- Šmykľavka: 5
- Wilhelm Röntgen - 1895
- When working with vacuum tube equipment he discovered an unknown type of rays which he named X. While experimenting with the rays he found that they can see through skin.
- Šmykľavka: 6
- Paul Villard - 1900
- AlphaBetaGamma
- Rn
- While experimenting with radon, Villard discovered a type of radiation that was more penetrating than alpha or beta radiation. He had discovered gamma radiation.
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