/u/dyyys1's posts in /r/askscience

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Why do the beeps from Sputnik sound like they are echoey? Is this bouncing of the radio signals or something about how the sound was generated?

17 upvotes

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Why does everyone assume that the EM drive can't work without breaking conservation of momentum? Why can't it conserve momentum by a mechanism we don't yet understand?

1 upvotes

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How does my body know when muscles and ligaments are being stretched too far?

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Lightning strike creating audible power line noise

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Lightning causing audible power line noise?

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If we think that man has only had fire for 400k years, then why do humans have a mechanism for healing from burn wounds? There are very few natural sources for burn injuries.

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Is the primary challenge in creating a neural network that functions as an artificial general intelligence just a matter of the proper training, or is there a hardware barrier right now that prevents us from creating something with sufficient complexity? Are there other organization issues as well?

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So what do these ingredients actually do in a cookie?

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During a phase change from ice to liquid, when energy is being absorbed without temperature changes, where is the energy stored? My instinct says as kinetic energy in the molecules as they "jitter" around, but that would increase the temperature.

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
Why do the beeps from Sputnik sound like they are echoey? Is this bouncing of the radio signals or something about how the sound was generated?	17
Why does everyone assume that the EM drive can't work without breaking conservation of momentum? Why can't it conserve momentum by a mechanism we don't yet understand?	1
How does my body know when muscles and ligaments are being stretched too far?	1
Lightning strike creating audible power line noise	1
Lightning causing audible power line noise?	1
If we think that man has only had fire for 400k years, then why do humans have a mechanism for healing from burn wounds? There are very few natural sources for burn injuries.	1
Is the primary challenge in creating a neural network that functions as an artificial general intelligence just a matter of the proper training, or is there a hardware barrier right now that prevents us from creating something with sufficient complexity? Are there other organization issues as well?	1
So what do these ingredients actually do in a cookie?	1
During a phase change from ice to liquid, when energy is being absorbed without temperature changes, where is the energy stored? My instinct says as kinetic energy in the molecules as they "jitter" around, but that would increase the temperature.	1