How does levitation by ultrasound work?

[Christophe]

To observe here: http://www.dailymotion.com/video/x2cpbq ... gie-o_tech

Who knows a little more?

[phil53]

Hi,
I walked the forum on the subject and I cannot find any information concerning:
Propagation through various materials (over short distances less than 1m)
the consumption
Does a member have this information or where to find it.
Thank you

[oli 80]

Hello, yesterday in the documentary alien theory on rmc discovery they talk about such a technology used in the construction of the pyramids in Egypt as much as in Mexico, the pyramid of the Yucatan or the site of theotihuacan

in peru there is also a building made of very large stones
https://www.youtube.com/watch?v=kJAxXrXzNy8