What creative thoughts did rømer have to explain his measurements

Why don't you see your reflection in water with waves or repples

Daughter element the new element produced along with a decay particle in a nuclear transmutation 2. half-life the substance that decays in a nuclear transmutation 3. parent element the change of one chemical element into another by nuclear decay or radioactive bombardment 4. transmutation the time required for the decay of one-half of the atoms in a sample of radioactive material

Diverging mirrors and lenses always produce images