Price is in US dollars and excludes tax and handling fees
coffee science ,e=mc2,funny coffee quote
Science physics formula e=mc2, Theory of relativity composed with colored and carved stones
School board (formulas on the physicist) on a white background.
Back to school.
The calculation for mass energy equivalence ist standing on a chalkboard, physic formular
Formulas on the physicist written by a chalk on a school board.
Back to school.
