Fornicus

u/Fornicus@lemmy.world
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What ads? uBlock, Sponsorblock and an automatic cookie decliner and the Internet experience is only hindered by log ins.

Also change your DNS and if you can use a VPN and a faked user profile like user agent switcher.

Sites these days collect all the data they can, that includes your screen size, system data like sound drivers and operating system or your language and IP Adresss which sites you visit at what times (that is where the DNS comes into play).

But yeah, the Internet has changed a lot and for the worse. So far there are ways to mitigate them.

on Jackpot · c/memes · 1 pts · 51d

borgremastered.com

and

klingonremastered.com

Also is there a source for upscaled Star Trek? I'll rewatch them all if there is one?

on Spicy Air ☢️ · c/Memes · 1 pts · 140d

We purify the material, yes.

If the ore grade is lower (e.g., 0.05%), you’d need ~280–300 kg of ore per kg of U-235.

When a hypothetical water contamination would occur in a natural deposit with a 0.05% density, it would contaminate water less than if it would occur with a purified source.

"The dose makes the poison." You may have heard the proverb.

The higher the dosage, the higher the potential health risk. Which is exactly why the purified material is so much more dangerous than the natural occuring sources.

You also assume controlled environments, deep in old salt mines. Have a look at this: https://en.wikipedia.org/wiki/Santa_Susana_Field_Laboratory#cite_note-VCR_2003-02-19-33

"Lopez described the cleanup of the heavily polluted sodium burn pit, a six-acre site where Rocketdyne disposed of massive amounts of radioactive waste. The modus operandi included chucking barrels of radioactive sodium into the sludgy pond and firing a gun at the canisters, which would then explode, releasing radioactive contaminants into the air.Lopez said that the pit has now been excavated ten to 12 feet down to the bedrock, resulting in the removal of 22,000 cubic yards of soil."

They did so, because the barrels wouldn't sink to the ground of the pond.

There isn't even a guarantee, for correct disposal. One could pocket life changing money by chucking barrels into the sea, today.

But that was not my point, my point was we cannot assume a controlled environment, even to the best of our abilities and knowledge, in timespans we haven't even been able to measure our own history in.

I am not totally against nuclear energy, it has the highest energy density possible. Heavier atoms aren't stable enough. The periodic table ends with these elements for a reason.

But the potential dangers, stemming from them are unimaginable. Because they exceed our very own existence as a species.

on Spicy Air ☢️ · c/Memes · 2 pts · 141d

The time radioactive waste must be stored depends on the type of waste and radioactivity.

The back-end of the nuclear fuel cycle, mostly spent fuel rods, contains fission products that emit beta and gamma radiation, and actinides that emit alpha particles, such as uranium-234 (half-life 245 thousand years), neptunium-237 (2.144 million years), plutonium-238 (87.7 years) and americium-241 (432 years), and even sometimes some neutron emitters such as californium (half-life of 898 years for californium-251). These isotopes are formed in nuclear reactors.

Sources: https://en.wikipedia.org/wiki/Radioactive_waste#cite_note-3

on Spicy Air ☢️ · c/Memes · 1 pts · 141d

Half-life refers to the time it takes for a radioactive isotope to decay to half its original quantity. This process is not linear but exponential, 10 half lifes are necessary to reach only 0,1% of radioactivity.

Plutonium-239, a highly toxic isotope with a half-life of 24,100 years. Plutonium-239 would still retain 12.5% of its radioactivity after 72,300 years.

Uranium-235: has a half life of 703.8 million years.

All these isotopes are byproducts of nuclear energy production.

These timespans are geologically relevant. There cannot be an estimation about the changes that occur in these.

Sources: Half lifes: https://en.wikipedia.org/wiki/Isotopes_of_plutonium https://en.wikipedia.org/wiki/Isotopes_of_uranium

Estimating a generation of 40 years was generous: https://en.wikipedia.org/wiki/Generation_time

History and pre history: https://en.wikipedia.org/wiki/Recorded_history

q. e. d.

on Spicy Air ☢️ · c/Memes · -1 pts · 141d

Don't forget, that they produce immediately useable energy. No heat loss, due to steam turbines.

And then there is the timespan that nuclear waste stays harmful. OPs "indestructable" container have to stay indestructable for millions of years.

If we assume 40 years as a generation, that will be 50,000 generations. The whole history of mankind is only 400 generations.

Edit: Added sources for everyone unable to use the Internet for its intended use.

https://en.wikipedia.org/wiki/Radioactive_waste#cite_note-3

Half lifes: https://en.wikipedia.org/wiki/Isotopes_of_plutonium https://en.wikipedia.org/wiki/Isotopes_of_uranium

Estimating a generation of 40 years was generous: https://en.wikipedia.org/wiki/Generation_time

History and pre history: https://en.wikipedia.org/wiki/Recorded_history

Möglicherweise relevantes Wissen:

https://de.m.wikipedia.org/wiki/Feuersturm

Dabei facht die zuströmende Frischluft das Feuer weiter an, wird selbst erhitzt und von weiterhin nachströmender Umgebungsluft in immer größere Höhen aufgetrieben. Dies lässt den hydrostatischen Druck der Luftsäulen immer ungleicher werden, so dass die Ausgleichsströmung am Boden immer heftiger wird und sich zu einem regelrechten Sturm bis hin zum Orkan entwickelt. Wenn irgendwann das brennbare Material zur Neige geht, ebbt die druckausgleichende Luftströmung ab und kommt zum Stillstand, sobald sich die Dichte der Luftsäulen wieder angeglichen hat.

Feuerstürme gelten allgemein als nicht aktiv löschbar. Sie enden meist erst, wenn das zur Verfügung stehende brennbare Material aufgebraucht ist.