Crossword puzzle clue "effect 1883 physics discovery"

___ effect (1883 physics discovery)

Discovery of Wilhelm Roentgen, which earned him the first Nobel Prize in Physics in 1901

Austrian physicist, d. 1853 famous for his discovery of the effect of movement on perceived wavelengths

The "butterfly effect" is a tenet of this physics class subject

Twisting effect, in physics

Effect, or effect's partner

Side effect or ride effect?

Soprano Frances: 1883-1952