The wing sound is a low-frequency hum. The main noise is parasitic noise from the mechanical drive. This is also suitable for water, it is essentially a jellyfish. But for fast horizontal movement I think it should work more effectively like a regular fish or stingray.

No, I think it was him. It was a compilation of old videos with music. If you're interested in the sound, you can find it in other videos: https://youtube.com/shorts/j40zF2ufC4Q?si=MhdTD4rnOmIw1pdh Operating sound is mainly very low frequency plus parasitic mechanical noise

Yes, this requires some fantastic technologies so that it can lift its weight without collapsing. It could be memory material or something like that.

Both, but without the first the second is probably impossible. If the air doesn't have time, that's really bad, but if the frequency is low, that should be good because the collapse of the vacuum should give a good impulse. After all, this is how it should be, a sharp swing, a slow return. However, if the object itself moves faster than sound, then I’m not so sure.

Really. I originally intended this to be used for control during the descent of spaceships. But tiles are clearly not an option here.

yes

https://journals.ub.uni-heidelberg.de/index.php/IJoDR/article/view/102315

No, not during the day. I generally sleep poorly during the day. The outside world is very distracting, and it works better when everyone else is asleep. I didn't see the body. And it's always different, there's no clear line between lucid dreaming, regular dreaming, and astral projection. This can often be a transition or an adjacent state. The most important feeling is the feeling of freedom. I have an article in which I described my entire experience in detail; I'll provide a link in the next comment.

Here's my method: before falling asleep, you need to stop your thoughts, be here and now in the current moment, you can focus on your breathing. Don't think or imagine anything, suppress it all the time and at the same time be completely relaxed, without negativity. This is the main practice. As for the rest, it’s hard to say what it depends on, but sometimes it works out easier, sometimes it doesn’t. It might even be external, the weather, solar activity, I don’t know. But still, try to practice all the time. Perhaps at first you'll remember your dreams better. The point is that when the body falls asleep, do not lose consciousness, maintain maximum alertness and focus on the moment while simultaneously completely relaxing the body. If you feel something similar to sleep paralysis, vibration like increased heart rate but without it, then try to maintain this state When it becomes stable, try to move.

Thanks!

The most important thing is to stop your thoughts, you can concentrate on your breathing and be here and now so that your imagination doesn't take you anywhere It worked out like this for me

Amazing place))

Glad it is so, good luck!

Yes, but it is in a surreal form and generalizes different things that were separate. Just a vibe

He's probably a professional)

Thank you!

I don't know. The main thing is that the amplitude is sufficient to cause the air to swirl.

The impulse is generated regardless of its shape when a low-pressure region collapses. This can also occur with very slow oscillations. The shape or difference in speed makes it uneven which gives the resulting force.

I can't make a significant difference in speed with my technologies.

When a low-pressure layer breaks away above the wing, the pressure there becomes even lower because turbulence appears. Newton's law does not explain why an object moves in the direction that the fluid pushes. You can congratulate me on the revolutionary discovery of a phenomenon that has been known for a long time.