Tutor and Freelance Writer. Science Teacher and Lover of Essays. Article last reviewed: 2019 | St. Rosemary Institution © 2010-2020 | Creative Commons 4.0

Leonhard Euler: Biography & Mathematician

Leonhard Euler, (born April 15, 1707, died Sept. 18, 1783), was the most prolific mathematician in history. His 866 books and articles represent about one third of the entire body of research on mathematics, theoretical physics, and engineering mechanics published between 1726 and 1800. In pure mathematics, he integrated Leibniz’s differential calculus and Newton’s method…

Landfill Sites: Selection, Types, Techniques

There is currently much debate on the desirability of landfilling particular wastes, the practicability of alternatives such as waste minimisation or pre-treatment, the extent of waste pre-treatment required, and of the most appropriate landfilling strategies for the final residues. This debate is likely to stimulate significant developments in landfilling methods during the next decade. Current…

Purple Loosestrife: Invasion & Summary

The scene is breathtakingly beautiful; a thick brush of purple flowers blankets Canada’s wetlands.  This blanket silences the expected sounds of the wetland environment, birds chirping, ducks splashing, insects buzzing and animals thriving.  This unnatural silence is disturbing, the favourite flowers that used to litter this landscape are no longer visible, the water that used…