frictional resistance is proportional to the area of the surfaces in contact, and this area increases rapidly with each division of the substance.
"The Mechanism of Life"
Stéphane Leduc
The reason will be found in the immense frictional resistance to diffusion.
"The Mechanism of Life"
Stéphane Leduc
By chance some frogs, the hind legs of which had been stripped of skin, were placed upon the table not far from an apparatus for the generation of frictional electricity.
"Makers of Modern Medicine"
James J. Walsh