The EM Spectrum
-2 key characteristics: Lowest energy, lowest frequency, longest wavelength.
-2 uses: Radio, garage door remote
-A danger: Long doses of radio waves is believed to cause cancer.
-How it affects me: Lets me watch TV
-Who discovered: Heinrich Hertz
-2 key characteristics: More energy than microwaves, shorter wavelengths
-2 uses: Heat lamp, Night vision
-A danger: Heat strokes
-How it affects me: During camping, I use infrared night goggles at night.
-Who discovered: Frederick William Herschel