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Joined 1 year ago
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Cake day: June 21st, 2023

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  • Well, Wikipedia claims

    The Earth has an internal heat content of 1031 joules (3×1015 TWh), About 20% of this is residual heat from planetary accretion; the remainder is attributed to past and current radioactive decay of naturally occurring isotopes.

    In that sense, it’s the only renewable energy source we have that’s not indirectly powered by the sun. It’s most similar to (proper) nuclear power, but the latter isn’t “renewable” because it requires digging up fuel from the crust.





  • That’s a tool to help application developers figure out how something looks to color-blind people, so the developers can correct their presentation. It doesn’t resolve color ambiguities for color-blind people by itself.

    For example, in the case of the image here, it turns everything into different shades of yellow, with both ends of the color gradient just being “dark yellow”. Now it’s clearly ambiguous to people with normal vision, as well.