Russell
"The force represented by that vacuity is an expansion pressure which is the equal and opposite of the gravitative compression pressure and gives rise to that commonly believed error of light repulsion which is not true to nature." [Russell to NYT - 1930 November 2]

See Also

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4plusplus
action of compression
Aggregation
Assimilation
Association
bondage of compression
center of high compression pressure
compression pressure force
curved pressure
Electric compression
electric pressure
electrical compression
electrical-compression
expansion pressure
expansion pressure force
Gravism
Gravitation
gravitative
Gravity
opposed curved-pressures
pressure condition in motion
pressure of motion
speed of compression
Syntropy
two-way compression-expansion sequence