The segmentation is influenced by very slight currents of diffusion, and I have many preparations showing the segmentation regularly distributed in various ways along radial diffusion lines.
"The Mechanism of Life"
Stéphane Leduc
The ether strain which results from the lateral movement of lines of electric strain is called the magnetic flux, and it can be mathematically shown that the movement of an electron, consisting when a rest of a radial convergence of lines of electric strain, must be accompanied by the production of self-closed lines of magnetic flux, distributed in concentric circles or rings round it, the planes of these circles being perpendicular to the direction of motion of the electron.
"Hertzian Wave Wireless Telegraphy"
John Ambrose Fleming
The trained ears of the two pilots caught a warning signal from one of the plane's radial motors.
"A Yankee Flier in Italy"
Rutherford G. Montgomery