That theory, a concept first proposed by Albert Einstein and often reiterated by British astrophysicist Stephen Hawking, seeks to find a single set of equations that can explain all the fundamental forces in the universe: gravity, electromagnetism, and the strong and weak interactive forces among subnuclear particles.
That theory, a concept originally proposed by Albert Einstein and often reiterated by British astrophysicist Stephen Hawking.
( z1 theory :mod ( z2 that ) :mod ( z3 concept :ARG1-of ( z4 propose :ARG0 ( z5 person :name ( z6 name :op "Albert" :op "Einstein" ) ) :mod ( z7 original ) ) :ARG1-of ( z8 reiterate :ARG0 ( z9 person :name ( z10 name :op "Stephen" :op "Hawking" ) :mod ( z11 astrophysicist ) :mod ( z12 country :name ( z13 name :op "Britain" ) ) ) :frequency ( z14 often ) ) ) )