Keely
"Then is to follow the new and large 250-horse power engine now in course of construction by Newsham & Co., of Philadelphia, which will be wholly vibratory, the present being only one-third vibratory and two-thirds pulsating. and Mr. Keely claims that with the contents of one receiver he will be able to run it continuously for 30 hours." [Keely Not Dead Yet]
Schauberger
If the horizontally radiating energy-form is conducted into [a] vacuum tube then on the inner periphery a strongly pulsating, blood-red glow appears. It [The Energy Evolution - Harnessing Free Energy from Nature, The Ennoblement of Water]
See Also