The optician, John Dollond, the first to successfully market achromatic lenses, was born 10 June 1706 #HistoryOfOptics
https://thonyc.wordpress.com/2010/06/10/taking-the-colour-out-of-light/

Diffraction was first investigated and described by the Jesuit astronomer, mathematician and physicist Francesco Maria Grimaldi born 2 April 1618
#historyofphysics #historyofoptics #histSTM
https://thonyc.wordpress.com/2010/03/14/refraction-refrangibility-diffraction-or-inflexion/

Diffraction was first investigated and described by the Jesuit astronomer, mathematician and physicist Francesco Maria Grimaldi born 2 April 1618 #historyofphysics #historyofoptics
https://thonyc.wordpress.com/2010/03/14/refraction-refrangibility-diffraction-or-inflexion/