Scientists made micro-drons without engines and batteries: I'll start them with sound waves
If you make sound clear and existing tone by pushing through the top of an empty bottle, now engineers have used the same principle to make and start low-tech robots, micro drones that can fly without any classic engine.
IntelMap indexes open-source reporting. This page identifies what a source reported; it does not independently confirm the claim.
2 reports · 2 sources
BlicScientists made micro-drons without engines and batteries: I'll start them with sound wavesBlicScientists made micro-drons without engines and batteries: I'll start them with sound waves9 recorded states
Signal first indexedP1 · 68% quality · 1 source
Corroboration 1→2 sources · quality 68→72P1 · 72% quality · 2 sources
Quality 72→76P1 · 76% quality · 2 sources
Quality 76→80P1 · 80% quality · 2 sources
Quality 80→84P1 · 84% quality · 2 sources
Quality 84→88P1 · 88% quality · 2 sources
Quality 88→92P1 · 92% quality · 2 sources
Quality 92→96P1 · 96% quality · 2 sources
Quality 96→99P1 · 99% quality · 2 sources