• 0 Posts
  • 14 Comments
Joined 1 year ago
cake
Cake day: August 9th, 2023

help-circle


  • Yes, but that would be a lot less efficient. With a dielectric mirror you can get easily 99.9% of the maximum momentum gain from the light, while with a solar powered laser you would get for the emission the compounded efficiency of the solar panel + storage + laser, so way below 10%. So you would gain around 10 times more impulse from your solar panel absorbing light than from the actual laser.

    The final momentum gain is a bit different as the maximum you can gain from a photon is double its momentum (because you can reflect it back with opposite direction).





  • OrganicMustard@lemmy.worldtoLefty Memes@lemmy.dbzer0.comOh no, Anarchists!
    link
    fedilink
    English
    arrow-up
    3
    arrow-down
    4
    ·
    7 months ago

    It doesn’t mean that every person has equal ability to physically defend themselves, but that society has the mechanisms to defend everyone that is being attacked. A grandma doesn’t need to be able to self defend against a thug in the street if the people nearby do it for her.

    The second paragraph is not relevant as there are no historical examples of a dictator getting into power from within an anarchist society.