/u/Joe30174's posts in /r/askscience
Are the colors and sounds of waves actual properties of the waves? Or are they just purely created by our brains?
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Do our eyes and brain completely disregard wavelengths we can't see? Or do our brains still have a purpose for them?
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How do ear canals help us with hearing such as directional audio when they cause sound waves to bounce around? Or rather, why wouldn't sound waves hitting our ear drum in a more "natural" way as in no ears to distort the sound waves be the better way?
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Do we generally believe everything that exists (elementary particles, fields, forces, etc.) in our observable universe is all there is?
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Does bringing a cup of water require the same amount of energy through infrared as it does conduction?
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Do we sense thermal radiation (infrared) the same way we sense and feel the transfer of heat through conduction?
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