[Bobalu]

I remember seeing those silly old ads :-)

Interesting article though...people would be shocked at the things being done with extremely high-frequency radar imaging.
These principle don’t just apply to the optical wavelengths.

[UCANSEE2]

people would be shocked at the things being done with extremely high-frequency radar imaging. These principle don’t just apply to the optical wavelengths.

BUT.... the high-frequency radar imaging can be turned into optical wavelengths.

[ro_dreaming]

FLIR cameras for firefighters to detect hot spots behind/inside walls, etc. also detects people behind walls, etc.