Title: ELI5:If teeth, hair and nails are made of the same thing, why do teeth not grow back if broken? : explainlikeimfive
Headings: ELI5:If teeth, hair and nails are made of the same thing, why do teeth not grow back if broken?
ELI5:If teeth, hair and nails are made of the same thing, why do teeth not grow back if broken?
This thread is archived
More posts from the explainlikeimfive community
ELI5: Why does it feel colder inside in the winter even though the thermostat says the temperature is the same?
ELI5: Why is grief so physically exhausting?
ELI5: Why are solar panels only like ~20% efficient (i know there's higher and lower, but why are they so inefficient, why can't they be 90% efficient for example) ?
ELI5: What is a “super computer” and what can it do?
ELI5: If sound waves travel by pushing particles back and forth, then how exactly do electromagnetic/radio waves travel through the vacuum of space and dense matter? Are they emitting... stuff? Or is there some... stuff even in the empty space that they push?
ELI5 : How does gravity cause time distortion ?
ELI5: Japan's Hayabusa2 capsule returned to earth from an asteroid 180 million miles away...
ELI5: Why is alliteration so pleasing to the human brain & tongue?

Content: Or is there some... stuff even in the empty space that they push? 8.4k
911 comments
3.6k
Posted by
u/jesaispasjetejure
6 days ago
Physics
ELI5 : How does gravity cause time distortion ? I just can't put my head around the fact that gravity isn't just a force
EDIT : I now get how it gets stretched and how it's comparable to putting a ball on a stretchy piece of fabric and everything but why is gravity comparable to that. I guess my new question is what is gravity ? :) and how can weight affect it ? 3.6k
555 comments
828
Posted by
u/watsgarnorn
2 days ago
Earth Science
ELI5: Japan's Hayabusa2 capsule returned to earth from an asteroid 180 million miles away...
How the hell did it travel such a long distance? 828
92 comments
768
Posted by
u/lVlarsquake
2 days ago
Other
ELI5: