Κυριακή, 11 Μαρτίου 2018
ACCELERATING EDUCATION: Stone projected upwards from a cliff.: A stone is projected almost vertically upwards at 20 ms−1 from the edge of a cliff as shown. It finally lands on the ground at the base of...
Δευτέρα, 5 Μαρτίου 2018
Bivalves have inhabited the Earth for over 500 million years. They first appeared in the Middle Cambrian, about 300 million years before the dinosaurs. They flourished in the Mesozoic and Cainozoic eras, and abound in modern seas and oceans; their shells litter beaches across the globe.
Πέμπτη, 1 Μαρτίου 2018
ACCELERATING EDUCATION: Greek manuscript from Newton: Newton knew Greek and he used writing in Greek language at his note book see more at the link: University of Cambridge