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Joined 11 months ago
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Cake day: August 15th, 2023

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  • Heat is electromagnetic radiation - photons, sound is mechanical displacement - phonons.

    They mostly propagate the same due to being waves, in most other respects they are very different.

    Heat convection is an entirely separate process where heat radiation is aided by the movement of the surrounding medium. Where it would otherwise heat up it’s environment, convection keeps the environment from heating up. Compare coffee in a thermos (very little convection) to a cup you’re blowing on (significant convection); more air movement - more cooling.

    Also, destructive interference does not at all work like that.

    Maybe a more useful analogy could be that waves have like walking animations, where in part of the animation they go up, and in another part they go down. Destructive interference happens when a wave in its’ “up” phase crosses a wave in it’s “down”, meaning the resulting movement looks like nothing. The waves don’t however interact in any way, and will continue on their way and on their own animation cycles.

    The shifting and heating parts are technically true but require very specific circumstances, enough so that I’m more prone to believe it’s another misunderstanding of the physics behind this. But I’ll give you the benefit of the doubt.







  • Lol. Check your privilege.

    A. Do a carbon footprint analysis of your life, if it’s above 2,5 tons coe/year you’re a net burden on the planet. My country is as well, although considerably lower than the US.

    B. It is possible for you to be a paragon of environmentalism and still live in a country with inefficient systems for water, infrastructure, zoning, industry and food production. Not to mention live in a culture of unsustainable lifestyle. Many Chinese or Indian persons are simply too poor to have a major impact on the environment, but their national industrial practices drive up the average pollution to levels comparable to the US (although still lower). Most US people aren’t as poor, and also have shitty industry standards, and also the means to change that without losing your standing internationally.

    C. Multiple countries are shitty, in fact most of the non-developing world countries are a net burden.

    D. As opposed to the other countries at the top, the US has had the economy, data, and access to resources to be able to something about it for generations, whereas most have had half the time and considerable need of modernising.

    E. The US is much larger than the other countries, and could with quite simple measures make great impact and help pressure other great polluters.











  • Consent.

    You might be fine with having erotic materials made of your likeness, and maybe even of your partners, parents, and children. But shouldn’t they have right not to be objectified as wank material?

    I partly agree with you though, it’s interesting that making an image is so much more troubling than having a fantasy of them. My thinking is that it is external, real, and thus more permanent even if it wouldn’t be saved, lost, hacked, sold, used for defamation and/or just shared.