Been working this for a few months now. It’s not a crazy hard problem - but it does break the mold of distance and speed taking priority over capacity. If you have any questions feel free to ask. I can get into the pros/cons of all the various options and tuning knobs.

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Catloafdev an hour ago | parent | next [-]

> not a crazy hard problem

Saw the one video linked here comparing other existing transport ratios, and asking for double that is 'not crazy hard'? It certainly sounds like a challenge.

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stevage 2 hours ago | parent | prev | next [-]

Yeah I'd be interested to hear more about what the options might be. Also curious why it is that DARPA thinks this is solvable, but no one has come close yet.

	▲	sysreq_ 2 hours ago \| parent [-]
		The tunable influences on a rotor are primarily velocity (rotation speed) and surface area (radius). Conceptually it’s more similar to something like a human powered helicopter (https://en.wikipedia.org/wiki/AeroVelo_Atlas) than you might expect.

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2 hours ago | parent | prev | next [-]

[deleted]

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AndrewKemendo 2 hours ago | parent | prev [-]

Why do you find it ethically ok to continue to support the Department of Defense/War?

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mhb 25 minutes ago | parent [-]

How does the cognitive dissonance of having the luxury to express that opinion while being protected by the most powerful military in the world not rip you apart?

	▲	AndrewKemendo 2 minutes ago \| parent [-]
		Do you just follow me around with the same tired argument? https://news.ycombinator.com/item?id=48478867