Note 1 — Chapter I
Reading edition
As early as 1910 it was discovered that an object magnetized under certain conditions was subject to a loss of weight, its gravity partially nullified. The Martel discovery undoubtedly followed that method.
Reading edition
As early as 1910 it was discovered that an object magnetized under certain conditions was subject to a loss of weight, its gravity partially nullified. The Martel discovery undoubtedly followed that method.