/u/PapajG's posts in /r/askscience

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Are electrons through cable the most efficient way of energy transmission at a distance?

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If all measuring tools disappeared from the earth would we lose what we know the measurement of a cm to be forever before deciding on a new centimetre?

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Can digestive tract cancers/tumours cause depression/anxiety/mood swings

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Can digestive tract cancers/tumours cause depression/anxiety/mood swings?

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If sound waves are “water like” waves in atom scale constructs, in a absolutely perfect vacuum what do all the other waves travel through? (Radio, infrared, radiation) Space itself, time? Or spacetime? Or is that when they become particles instead of waves.

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
Are electrons through cable the most efficient way of energy transmission at a distance?	1
If all measuring tools disappeared from the earth would we lose what we know the measurement of a cm to be forever before deciding on a new centimetre?	1
Can digestive tract cancers/tumours cause depression/anxiety/mood swings	1
Can digestive tract cancers/tumours cause depression/anxiety/mood swings?	1
If sound waves are “water like” waves in atom scale constructs, in a absolutely perfect vacuum what do all the other waves travel through? (Radio, infrared, radiation) Space itself, time? Or spacetime? Or is that when they become particles instead of waves.	1