this post was submitted on 28 Sep 2023
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Showerthoughts

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A "Showerthought" is a simple term used to describe the thoughts that pop into your head while you're doing everyday things like taking a shower, driving, or just daydreaming. The best ones are thoughts that many people can relate to and they find something funny or interesting in regular stuff.

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We have cars for earth, boats for water and planes for air. Nothing for fire. Not that I want to ride on fire.

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[–] partial_accumen@lemmy.world 2 points 11 months ago (1 children)

We're in agreement on the physics of rocket propulsion. However, "fire" is essentially defined as a chemical oxidation reaction. The reaction itself doesn't have mass. While fuel and oxidizer undergo the oxidation reaction, it isn't the reaction itself providing the propulsion, its the mass and velocity of the combustion products.

This is why the "natural element" definition is old and out-of-date. Any discussion of "fire" as an element is a philosophical or literary exercise, not a scientific one.

[–] criitz@reddthat.com 4 points 11 months ago (1 children)

I think you nailed it - fire is not analogous to earth, wind, and water (and heart), so the premise of the post is confounded.

[–] spittingimage@lemmy.world 2 points 11 months ago

I tried to imagine a vehicle for travelling on a surface of Heart, then decided I don't want to.