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A comment on Toyota recalls nearly 1.9M RAV4s to fix batteries that can cause a fire. Parent comment

Re:Toyota recalls nearly 1.9M RAV4s to fix batteries that ca... by londons_explore on Thursday November 02, 2023 @01:59PM (#38117547)
It always disappointed me that humans haven't really managed to make the rotating detonation engine work. Its theoretical efficiency and power density is really high.
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Re:Toyota recalls nearly 1.9M RAV4s to fix batteries that ca... by I_Am_Nous on Thursday November 02, 2023 @03:19PM (#38118623)
Now I'm imagining something like a fidget spinner combined with a Nuclear Pulse Engine[1] and it's awesome because I'm imagining that it can provide both propulsion and rotation...but I bet we need some great advances in material science before anything like it could exist.

1.https://en.wikipedia.org/wiki/Nuclear_pulse_propulsion

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Re:Toyota recalls nearly 1.9M RAV4s to fix batteries that ca... by adhesive_wombat on Thursday November 02, 2023 @05:39PM (#38120583)
I think it would be more like an enormous Wankel engine.
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Re:Toyota recalls nearly 1.9M RAV4s to fix batteries that ca... by I_Am_Nous on Thursday November 02, 2023 @06:03PM (#38120892)
A Wankel was what I thought of first, since it's the closest we've come to a rotational explosion engine, but I'm a space nerd so the combination of rotation and propulsion could make for some interesting applications related to space travel.
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