EM Spectrum Timeline
Storyboard Descrizione
EM Spectrum Timeline | How did the electromagnetic spectrum develop?
Testo Storyboard
- Diapositiva: 1
- Ibn al-Haytham - circa 1015
- Al-Haytham showed that light travels in straight lines through different optical experiments.
- Diapositiva: 2
- William Herschel - 1800
- Herschel discovered infrared when he was experimenting to see the change in temperature of the different colors of light.
- Diapositiva: 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.
- Diapositiva: 4
- Heinrich Hertz - 1886
- Hertz was the first person to send and receive radio waves.
- Diapositiva: 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.
- Diapositiva: 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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