The heart has several valves. However, I wasn't able to understand the difference between the bikuspid and the trikuspid valve. What are the differences and are the differences (if any) significant?
When I was young, my mother knew a poem about a daffodil and a lilly that started...'Said Daffy Down Dilly to the little white lilly, whose tips were beginning to show. Say what are you about? Do make...
Just watched the film Dambusters for the umpteenth time, was wondering if there are any figures on how many people in the Ruhr valley were killed as a result of the Dams being burst?
