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Cake day: June 15th, 2023

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  • user134450@feddit.detoich_iel@feddit.deich🏴‍☠️iel
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    6 months ago

    In der Praxis gab es keine richtige Abgrenzung zwischen Kaperfahrt und Piraterie; siehe z.B: Klaus Störtebecker wird von vielen nur als Pirat gesehen obwohl er lange Zeit legal gesehen ein Kaperfahrer war.

    Eine Kaperfahrt ist ganz eindeutig mit einer staatlichen (über)Macht zu identifizieren.


  • Other commenters have pointed out the problems with overloading of connectors and reduced efficiency because of the added resistance but there is another really important reason not to chain power strips: circuit breakers work best against short circuits when the resistance between the breaker and the short is fairly low (for instance less than 0.5Ω) so that the current will quickly go over the rated current of the breaker. If the resistance is a lot higher because you have too many extensions between the breaker and the fault, the time the breaker needs to react will go up. Counterintuitively this usually means more energy will be turned to heat by the fault.

    In extreme cases this can mean the difference between a broken power strip that you can just throw out and a burned down house.















  • user134450@feddit.detoCollapse@lemmy.mlThe Protein Problem
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    9 months ago

    ”nitrogen-rich fossil fuels that feed our culture“ wow this article is really badly researched. the problem is of course real and has been described very well by William Crookes in 1898. The answer back then was the development of the Haber-Bosch process. The input was originally hydrogen from coal not natural gas which shows that the process is a bit more adaptable than this article makes us believe.

    hydrogen can be obtained from many sources (including as a pure substance from wells as white hydrogen) and the reason why we use natural gas today is because it is much cheaper than the alternatives, not because other source materials would not scale as well.

    how we will be creating inorganic nitrogen fertilizer in the future is a question to be solved but it is not an insurmountable problem – more like an upcoming shift in our economic practice because we will have to switch to more expensive sources.