tarrox1992

tarrox1992 t1_j7vq3qk wrote

But the entire organism is connected and affecting one system could presumably affect the plant's ability to create certain molecules over others. I'm not saying this is the case, but good experiments should control for as many variables as possible, especially something as simple as the growth medium of the plants.

23

tarrox1992 t1_j210fz5 wrote

>Pluto is about two-thirds the diameter of Earth's Moon and probably has a rocky core surrounded by a mantle of water ice. Interesting ices like methane and nitrogen frost coat the surface. Due to its lower density, Pluto's mass is about one-sixth that of Earth's Moon.

https://solarsystem.nasa.gov/planets/dwarf-planets/pluto/in-depth/

>We know very little about Eris' internal structure.

>Eris most likely has a rocky surface similar to Pluto

https://solarsystem.nasa.gov/planets/dwarf-planets/eris/in-depth/

The only dwarf planet composition that we are even slightly sure about seems to show that it is, like the other commenter said, covered in miles of ice.

3

tarrox1992 t1_j20jlvl wrote

https://solarsystem.nasa.gov/planets/dwarf-planets/ceres/in-depth/

Ceres could be up to 25% water.

https://www.usgs.gov/media/images/all-earths-water-a-single-sphere

An asteroid (well, it'd be a dwarf planet) composed only of water-ice with the same mass of Earth's water would, presumably, be slightly larger than those spheres. Because water expands as it freezes and a dwarf planet would be at least partially frozen.

https://upload.wikimedia.org/wikipedia/commons/1/16/Ceres_Earth_Moon_Comparison.png

So, looking at the size of Ceres compared to Earth/Earth's water, I'd assume that we'd only need 5-6 bodies similar to Ceres to fill us up.

https://solarsystem.nasa.gov/moons/jupiter-moons/europa/in-depth/

They think there is more than twice the amount of water on Europa than on Earth. Not even mentioning the other very wet moons of the outer planets. The article here believes Earth water came from the outer solar system, and, looking at all the information here, it should be easy to see that some asteroids are basically water balloons. Even if they aren't, there are still plenty of water rich bodies the Earth could have amassed.

edit: typos

10

tarrox1992 t1_j1y3o87 wrote

>https://www.reddit.com/r/math/comments/dfw3by/is_there_any_example_of_a_pure_math_that_suddenly/

There's some examples of pure math theory being used practically. Logic was studied for a long, long, time before we realized how useful it is for computers. Do you truly believe that it is impossible for this physical experiment to give any practical information? Do note, just because you can't possibly think of one, doesn't mean the people actually studying it can't. Even if that were the case, perhaps someone will be able to use this in a few hundred years.

10

tarrox1992 t1_ix97bzs wrote

It’s the speed of freezing that causes ice crystals to form that burst open cells. Single cells are a lot easier to freeze because they can be frozen slowly, which discourages ice crystal formation. Large tissues would need to be frozen quickly for theoretical hibernation/storing, because if only half your heart is frozen, then there are going to be problems. The rapid freezing is mostly what causes ice crystals and cellular damage.

14