u/Fun-Affect2186

I am studying at university right now (engineering) and at physics lessons we were talking about nuclear energy and wastes a lot. Aside from nuclear powerplants and nukes that actually can be dangerous in wrong hands I think that most of the safety protocols and actions are too "paranoid". Every time you make x-ray you get lead jacket despite the fact that dose of radiation is very small. If you pregnant making x-ray almost impossible. All x-ray apparatuses are controlled more strictly than banks. All radioactive wastes even those which will decay pretty fast - are sealed deep underground in welded barrels in cement and basically flood-proof and apocalypse-proof. There are few independent international organisations that control everything nuclear related, not counting national organisations. I understand that Chernobyl left scar on people's perception of nuclear energy and, likely, all those safety measures are made because it's better being safe than sorry, but isn't it a bit of an overkill? Also I think it may be done so that wastes don't get in hands of terrorists, but let's be honest you can't make dirty bomb with slightly radioactive lab gloves and few crumbs of uranium.

I understand that certain genetic mutations can become an advantage for survival, therefore those mutations will more likely spread through generations. Like when giraffe with slightly longer neck gets more food cause it can reach higher, but what about complex systems like cattle's digestive system that can digest cellulose, snake's venom, rhino's horns, etc.? You can't just suddenly start producing venom after one generational mutation, and even if you will start developing system for producing venom, it will be useless for survival. Same with horns, there is no advantage in having few millimeter horn, cause it can't help with anything.

Thanks for answer!

For example could there be some form of life that has several sexes and, either requires all three of them to reproduce or for example one of sexes being versatile. Kind of like in that interdementional cable episode from "Rick and Morty" with elephant-people. Is there forms of life that could have three "parents"? Wouldn't it be better since genetical pool is more diverse?

I(m19) was watching "Invincible" recently and (Spoiler!!!) one of the characters in the show gets an abortion. Despite "Invincible" being pretty progressive franchise, abortion was depicted as something traumatizing for that character and her partner (seemingly for no reason). In tons of other media (conservative and progressive) any case of abortion is usually some kind of tragedy and to this day I don't understand why. It's probably obvious from the text above that I'm pro-choice. Is it a real thing that women experience after abortion and if yes: why? Is it some kind of hormonal change or is it because of religion/cultural background, where abortions are seen as murders. I don't know anyone who had an abortion, but I always perceived it like it's not a big deal, kind of like expensive and messy contraception.

Preventively thanks for answers