no, i mean theoretically who knows, but practically no. compressing something to be more dense than a solid is energy intense. you are surpassing the bond energy of moleculesto do it. second, compressing enough osmium is going to take less, but still bigajoules, of energy. the compressive stress is immense. anything that could hold thht stress is much too big to fit in the package.

it kinda does both, there are more mice but the more naturalized habitat gives them more places to hide that isnt your house, especially in the spring/summer fall, but winter too. I dont know, others get mice all the time anyway, we occasionally do, i dont know if it’s an improvement or not. I do know that a well sealed house in the woods with totally native habitat for acres (not mine sadly, lol) has far fewer pests than in any suburb house so i think there’s merit.

they are indeed very alien it’s true. And i suppose, i just dont really want people thinking bees are immune to smoke or other airborne toxin.

Another fun fact is that bee flight muscles are directly saturated with oxygen and have a power density comparable to helicopters. The whole bee in flight is comparable to a car. Crazy creatures.

am i the only one who notices that this logic makes no sense? it doesnt matter that they have no lungs, they still are susceptible to both heat and airborn toxins, they perform gas exchange. They lived because the heat and smoke were below lethal toxic levels for them.

that’s not really relevant to the question at hand. “but magic” is clearly not an interesting answer when people are playing around with physics.

Both blue and green eyes in humans and blues and many greens in vertebrates are structural, yeah. Yes the structural coloring could be recreated in fur or skin. (noting that many mammals do structural IR effects in their fur, famously polar bears)

more accurately, orange pigments are readily available. Nothing fundamentally stops mammals (or anything else) from developing a green. Note for example many animals have green eyes.

the diffraction limit of a lens cant really be circumvented optically, it’s a fundamental limit of light due to being waves. so some insane refractive index wont help.

many eyes are near the diffraction limit (for human sized eyes the diffraction limit is around 20/10 vision). To have better accuity you factually need larger eyes. Although it’s the size of the lens that matters more than pupil size strictly. The pupil modifies the lens optics but the lens determines the limit.