I am truly astonished to discover that you apparently hold no one to be of account who is found in a philosophy department (or in a encyclopedia of philosophy?). Really?! Scientists are held to be of no account if they are associated with Philosophy?
I did a quick check on a few names in my Oxford Companion to Philosophy (new edition). Just a few. Imagine what I found:
Niels Bohr - Danish physicist who made fundamental contributions to understanding atomic structure and quantum mechanics.
Nicolaus Copernicus - the first astronomer to formulate a scientifically-based heliocentric cosmology that displaced the Earth from the center of the universe.
René Descartes - philosopher, mathematician, scientist, and writer.
Albert Einstein - theoretical physicist - widely considered one of the greatest physicists of all time.
Galileo Galilei - Italian physicist, mathematician, astronomer, and philosopher.
Sir Isaac Newton - an English mathematician, physicist, astronomer, alchemist, and natural philosopher.
Max Planck - discoverer of quantum physics.
Aristotle - Greek philosopher and scientist.
Apparently, none of these worthies fit your definition of “influential or well-known among scientists.”
OK. Thanks for that insight.
I did a quick check on a few names in my Oxford Companion to Philosophy (new edition). Just a few. Imagine what I found:
Niels Bohr - Danish physicist who made fundamental contributions to understanding atomic structure and quantum mechanics.
Nicolaus Copernicus - the first astronomer to formulate a scientifically-based heliocentric cosmology that displaced the Earth from the center of the universe.
René Descartes - philosopher, mathematician, scientist, and writer.
Albert Einstein - theoretical physicist - widely considered one of the greatest physicists of all time.
Galileo Galilei - Italian physicist, mathematician, astronomer, and philosopher.
Sir Isaac Newton - an English mathematician, physicist, astronomer, alchemist, and natural philosopher.
Max Planck - discoverer of quantum physics.
Aristotle - Greek philosopher and scientist.
Apparently, none of these worthies fit your definition of “influential or well-known among scientists.”
Their inclusion in an encyclopedia of philosophy does not make them philosophers. Most of the names on that list were scientists who used the scientific method--observation, logical deduction, formulation of testable hypotheses, experimentation, etc. Perhaps some of them engaged in philosophical thought meandering as a hobby, I don't know.
The only exceptions on that list would be Descartes and Aristotle. Descartes may have had some training in logical thought, but whatever contributions he may have made to mathematics and science (I don't know what they supposedly are) are obscured by his diving head first into the existentialist nonsense world of philosophy. Cogito ergo sum doesn't even come close to being a scientific concept. I don't know what Aristotle is remembered for (genuine scientific contribution, or philosophical nonsense) and I can't look him up because my internet is buggy.