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All waves of the EM. spectrum

e.g.

Radio waves

Microwaves

Light waves

X-rays

Gamma rays

Cosmic Rays

etc.

Technically gravity waves and a couple other waves that relate to inter- and extra- atomic bonds

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14y ago
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12y ago

Electromagnetic waves. They travel in space-time.

Also, light waves dont require a medium. :) Brittany <3Luv u<3~<3~

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13y ago

Classical physics would suggest electromagnetic(i.e. light, radio, x-rays) waves, gravitational waves - but some modern theoretical physicists might disagree!

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14y ago

Energy waves include sub folders

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13y ago

Electromagnetic waves.

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7y ago

Electromagnetic waves.

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Q: What types of waves don't need a medium?
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