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10 cards from this deck
No, they can travel through vacuum
Perpendicular to each other & direction of travel
Hans Christian Ørsted
James Clerk Maxwell
c=3.0×108 m⋅s−1c = 3.0 \times 10^8 \ m \cdot s^{-1}c=3.0×108 m⋅s−1
Albert Einstein
Gamma, X-ray, UV, visible, IR, microwave, radio
Light is EM wave; sound is mechanical wave (needs medium)
400 nm400 \ \mathrm{nm}400 nm (violet) to 700 nm700 \ \mathrm{nm}700 nm (red)
Approx. 8 minutes 20 seconds
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