Practical Noocenology draws on Nikolay Timofeev-Ressovsky's conception of biospheric rents. Nebulon's powers were dependent on the biospheric energy of planets. Nebulon's powers are a result of biospheric energy and his alien physiology. As research test pilot he also conducted airborne remote sensing studies in biospheric research. Using biospheric energy beyond a certain level could result in global destruction.