• 0 Posts
  • 53 Comments
Joined 4 months ago
cake
Cake day: May 24th, 2024

help-circle


  • You’d like Doctor Stone.

    Senku is an incredibly smart high schooler who wants to be an astronaut like his dad. Instead, every human being on earth is turned to stone in a flash of mysterious green light. Six thousand years later, Senku’s body breaks out of the stone. He’s all alone in a world with no people, no technology, and no society. Fortunately, Senku has the power of science on his side. He vows to sprint up the technology tree and accomplish in his own lifetime what took humanity 10,000 years the first time around. He still wants to go to space.




  • MindTraveller@lemmy.catoaww@lemmy.worldI'd want to let Max in
    link
    fedilink
    English
    arrow-up
    5
    arrow-down
    3
    ·
    1 month ago

    Yes. Don’t raise your kids at the bus stop if you can’t play nice with the bus people. That bird had ample time to realise that people are always using the bus stop. Bird should have laid eggs somewhere peaceful. Now bird is being an asshole for no reason as a response to its own bad choices. We should kill off asshole birds like that and let the species evolve smarter and less mean.

    Fun fact: a lot of fairy tales have wolves going after humans with a ferocity you will not see in nature. This is because back when those stories were written, they did. However, humans are vindictive. Man-killer wolves would be hunted down with spears and killed. Over time, wolves evolved to be more cautious of humans and less aggressive. And now our wolf problems are solved.







  • MindTraveller@lemmy.catoAsk Lemmy@lemmy.worldHow do I flush this?
    link
    fedilink
    English
    arrow-up
    5
    arrow-down
    1
    ·
    edit-2
    2 months ago

    Only a filthy Star Wars nerd would want to use hyperdrive!

    /uj Star Wars has some good and interesting themes, and none of it has to do with FTL technology. If you want a superior version of the same technology with more depth and dramatic implications, look at Halo. If you want what George Lucas was trying and failing to plagiarise, look at Dune. If you want to arbitrarily move around at whatever speed the plot demands or instantly, look at Stargate. And if you want a military fantasy, look at Star Trek. Hyperdrive is an inferior compromise between all four of these better written FTL techs that fails to execute any one idea well. Which is perfectly fine, because Star Wars isn’t about hyperdrive. It’s about taoist/buddhist philosophy, political commentary on fascism, and the power of individuals in the face of overwhelming systems and impossible odds. None of that has anything to do with how fast a ship moves, the hyperdrive is just a plot device that lets us skip the boring stuff and have more of the stuff Star Wars is actually good at.



  • If you’re in the US, that’s not true. India emits less than US. India emits 3 billion tons of CO2 a year. USA emits 5 billion.

    Now that we’ve sorted out the facts, let’s talk philosophy. You’re arguing that we should take actions that prevent climate collapse instead of worrying about borders and blame. I agree. So worry about the political processes that you have the power to participate in. You can’t vote in Chinese elections. You can’t vote in Indian elections. You can vote in your country’s elections, so worry about those.

    The alternative is that America does nothing because China won’t do anything, and China does nothing because America won’t do anything. You’re just playing chicken. And what’s the prize for winning? Nothing. What happens if you’re both stubborn? Everyone and everything dies.

    The shrimp don’t care whose fault it is that they all died. They just want to live. Every gram of CO2 we don’t emit could mean one more shrimp lives for one more day, and the total chance of climate collapse ticks down by one trillionth of a percent.





  • A mantis shrimp can punch hard enough that it vaporises the water in front of it into steam, which causes an explosion. It’s an effect called cavitation, and it can kill a prey animal that the shrimp didn’t even touch from the force of the explosion. Cavitation can also be an issue for sea vessels if the propeller and hull design creates too much turbulence, and this can damage vessels. If you’ve played Subnautica, cavitation is what happens when you run the Cyclops at full engine for too long.

    Subnautica also has a deep sea vessel called a prawn. Prawns have claws on the first six legs, while shrimp only have claws on the first four. Australians love prawns, and do not call them shrimp. The famous line “shrimp on the barbie” was deliberately changed to make it easier for Americans to understand. Under normal circumstances an Australian would never talk about cooking shrimp, even if the animal on the barbie only had four claws.

    Shrimp, prawns, and other marine crustaceans need a chemical called Calcium Carbonate, or CaCO3, to grow their shells. CaCO3 is a buffer chemical, which means that it can react with both hydrogen ions and hydroxide ions to form other chemicals. Buffer chemicals make a solution resistant to changes in pH. If you add an acid or base to a solution with a buffer, the pH will change very little, at least until the buffer runs out. Calcium Carbonate makes the ocean resistant to changes in pH, which is pretty handy because carbon dioxide reacts with seawater to produce carbonic acid. Human-caused emissions of carbon dioxide would have already turned the oceans to acid and killed off all the marine ecosystems if it weren’t for CaCO3. Unfortunately, the amount of CaCO3 in the ocean has been greatly reduced. This makes it harder for crustaceans like shrimp to grow their shells. This has lead to a decline in both population and size for marine crustaceans. If we keep emitting carbon dioxide, the calcium carbonate buffer will run out and the crustaceans will all die. Also, the ocean will turn to acid and all the fish will die too, whether it be due to the acid directly, or to food web collapse. This may herald the end of most life on earth.