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Achievements for which a Nobel is awarded must also stand the test of time.  The Nobel committee does not like to find that something they awarded a prize for turned out to be wrong.  So there is often a long delay, as in Peter Higgs' case.

Achievements for which a Nobel is awarded must also stand the test of time.  The Nobel committee does not like to find that something they awarded a prize for turned out to be wrong.  So there is often a long delay, as in Peter Higgs' case.

The Brans-Dicke gravitation theory turned out to be wrong, as did Fred Hoyle's "steady state creation" theory.  But both men made other groundbreaking contributions.  It's possible that Dicke's name was more closely associated with the Brans-Dicke theory than with his invention of the lock-in amplifier and his work devising tests of relativity (including the test that refuted Brans-Dicke.) Also Nobel prizes are not often awarded for inventions, even if they had far-reaching consequences, such as the 2014 prize for the blue light-emitting diode.

The Brans-Dicke gravitation theory turned out to be wrong, as did Fred Hoyle's "steady state creation" theory.  But both men made other groundbreaking contributions.  It's possible that Dicke's name was more closely associated with the Brans-Dicke theory than with his invention of the lock-in amplifier, his work devising tests of relativity (including the test that refuted Brans-Dicke), and his insights into the Big Bang theory and the cosmic background radiation.  Also, Nobel prizes are not often awarded for inventions, even if they had far-reaching consequences, such as the 2014 prize for the blue light-emitting diode.

So it's really hard to say.

So it's really hard to say.