this post was submitted on 04 Jul 2025
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Memes
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Post memes here.
A meme is an idea, behavior, or style that spreads by means of imitation from person to person within a culture and often carries symbolic meaning representing a particular phenomenon or theme.
An Internet meme or meme, is a cultural item that is spread via the Internet, often through social media platforms. The name is by the concept of memes proposed by Richard Dawkins in 1972. Internet memes can take various forms, such as images, videos, GIFs, and various other viral sensations.
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Laittakaa meemejä tänne.
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- Ei selkeän poliittista sisältöä (poliitikoista, poliittisista tapahtumista, vaaleista jne) parempi paikka esim. !politicalmemes@lemmy.ca
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It would work if the repulsion/attraction only went in 1 direction. But since it goes both ways, they just cancel out.
Conversely, the fan version of this idea (fan blowing into a sail) does actually work. But it's nowhere near as efficient as simply turning the fan away from the sail to push you the normal way.
Well because there the whole system now becomes the ship+air/water molecules rather than just the ship + you use energy to work the fan which imparts that energy to the air/water molecules. In the end the air/water molecules literally get pushed behind so the rest of the system can move forward.
What if u put the fan in the water?
There's oxygen in water, so it could work
You think it would work if one end is a magnet and the other ferrous metal? I'm pretty certain it wouldn't
Whatever happens there's no work done as the magnet and it's partner don't move relative to each other. There's force between them, but no movement.
No, because the force of attraction is still working in both directions just not as strongly as it would with two magnets.
Curse you physics
Yeah, as long as no other energy is put into the system, nothing will happen. Since the two parts are statically attached to the same object, so no additional movement or energy means no effect on the overall object.
It is basically like putting two nails in a piece of wood and stretching a rubber band between them. Nothing will happen without additional steps