I thought this sounded interesting, and I wondered whether it has any relevance to the audiophile amplification world.
https://phys.org/news/2021-06-world-smallest-acoustic-amplifier-emerges.html
Caveat: what I know about engineering would fit on the back of no envelopes, so forgive me if this is either old news, or totally irrelevant.
https://phys.org/news/2021-06-world-smallest-acoustic-amplifier-emerges.html
Caveat: what I know about engineering would fit on the back of no envelopes, so forgive me if this is either old news, or totally irrelevant.