https://en.wikipedia.org/wiki/Rudolf_Steiner

See Also

Changed Conditions of the Times - Steiner lecture mentions Keely
Figure 13.07.01 - Mind Matter and Energy Chart - shows Steiner's subdivisions of Matter & Energy
In the Ages to Come - Steiner
Initiation
Intuition
Moral Science
Moral Technology
Rudolf Steiner Archive
Rudolf Steiner Lectures
Rudolf Steiner on Technology. A Review; discusses Keely's earlier work - excellent paper, 2mb pdf download
Sixth Sense
Spirit
Spiritual Science
Spirituality
The Ahrimanic Deception
What Electricity Is - Steiner