Core physics This apple tree at Woolsthorpe Manor is believed to have been the inspiration for Isaac Newton. (Courtesy: Bs0u10e01/CC BY-SA 4.0) A bright green Flower of Kent apple has now been picked ...

Handbook of Chemistry and Physics. A Ready-Reference Pocket Book of Chemical and Physical Data. By Prof. C. D. Hodgman, assisted by Prof. M. F. Coolbaugh and Cornelius E. Senseman. Eighth edition.