- cross-posted to:
- energy@slrpnk.net
- videos@lemmy.world
- cross-posted to:
- energy@slrpnk.net
- videos@lemmy.world
This may be a “hot” one, considering lots of people do not like anything nuclear. If you would want to know my “bias”, well I have always been “pro nuclear”. So if you want to take this claim with huge mountains of salts, feel free to do so.
Here is a relevant wiki article for radiation hormesis. This is a proposed effect that certain amounts of radiation exposure may even be beneficial instead of harmful as LNT may suggest.
TL;DW for folks who do not want to watch video (I have not included examples or numbers)
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Radiation from natural sources (like radioactive bananas you eat, or from soil or space) are always present.
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Most nuclear safety guidelines consider that there are no “safe limits” of exposure to radiation. For example, there are safe limits of some metals in our body, there is no limit for mercury or lead exposure. There is a required amount of vitamins you need, but there is also a limit beyond which they are not safe. Radiation is treated like mercury in guidelines.
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If it has no safe limits, then due to natural exposure, places with higher background exposure must have naturally higher rates of cancers developing - but the thing is, experiments and data collected does not match.
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Your body has natural means to repair damage done by radiation, and below a certain limit, your body can withstand (and arguably benefit, see the linked article) the radiation.
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Over estimating danger due to radiation leads to large scale paranoia, and leads to general public be scared of nuclear disasters, when they are not as bad ast they may seem.
And pre-emptively answering some questions I am expecting to get
- Do you support nuclear bombs? Hell no. We should stop making all kinds of bombs, not just nuclear.
Are there not better means of renewable energy generation like
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solar? - no, you still need rare erath metals, you need good quality silicon, and you need a lot of area. Until we have a big “stability” bump in perovskite solar cells, it is not the best way. is it better than fossil fuel? everything is better than fossil fuel for practical purposes.
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wind? geothermal? - actually pretty good. but limited to certain geographies. if you can make them, they are often the best options.
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hydro? - dams? not so much. There are places where they kinda make sense, for example really high mountains with barely any wildlife or people. otherwise, they disturb the ecosystem a lot, and also not very resistant to things like earthquakes or flooding, and in those situations, they worsen the sitaution.


Just a quick point on the cost of nuclear. A large part of the cost of nuclear is due to the very intense safety systems which have been added on a little at a time. Each small safety thing has increased the cost but nobody has taken all of the intentions of those changes and integrated them into a stable and safe system without the need for all the little safety features.
The best example I can give is cars. Adding air bags, lane change detection, car in front detection, ABS, and so on each makes cars safer, but never questions the underlying adduction that cars are good. Why not trains?
In rectors we can have passive safety systems where the moderator is a liquid which is blocked in by a solid plug. The solid plug is frozen moderator and sits at the bottom of the system. If the power is cut or fails the plug stops being cooled and melts, draining the moderator. Without the moderator the neutrons are going too fast to trigger the chain reactions and everything stops. No sensors or control systems are needed, it just passively stops and cools naturally, while also being way cheaper.