Acoustic Levitation with Tibetan Singing Bowl - Ancient Tech

Описание: Here’s an example of using acoustic sound waves to levitate water with a simple “Tibetan singing bowl” I picked up in Shimla, Himachal Pradesh (northern India, west of Tibet). The physics of it is “standing waves.” https://en.m.wikipedia.org/wiki/Standing_wave

These bowls go back to 1600 BC.
https://en.m.wikipedia.org/wiki/Standing_bell

In the early 20th century, Swedish designer Henry Kjellson (author of “Teknik i forntiden” or Prehistoric Technology) described a technique used by Tibetan Monks to levitate stones using sound. This was later relayed in a book by Bruce Cathie, a New Zealand airline pilot who studied UFOs, UAPs, and flying saucers until his death in 2013.

Reference: https://s3.amazonaws.com/arena-attachments...

Here’s a demonstration from Harvard of the same principle with a slightly more sophisticated instrument that wasn’t made for tourists:    • Acoustic Standing Waves and the Levitation...  

What are the chances that Tibetan monks, who purportedly used acoustic levitation to move stones, also happened to popularize a small demonstration model of the same principle of physics which works even in its cheap modern form?

If the first Tibetan Singing Bowls date back to 1600 BC, how long before then was the technology known? Was it understood in Egypt about 900 years earlier when the Pyramids were constructed?

How much of this ancient technology has been lost or dismissed in favor of our “superior” electricity-based tech?