BSc PhD FRSC – davidspeaks.ca – @drdaviddennis
Personal Accounts on D-Day and Today… I remember D-Day well. I was in elementary school on June 6th 1944 when suddenly classes were cancelled and we were all lead into the main hall of the school. The Headmistress announced that the invasion of Europe had begun. This was all she knew about it. I stoodRead More
Mandatory Listing of Calories in Fast Foods The Ontario Government has proposed legislation to require fast food outlets like McDonald’s and Tim Horton’s to list the calories associated with each food item they sell. This will, they hope, make customers more food conscious and help relieve the problems associated with such maladies as obesity andRead More
Prince Charles and Climate Change Prince Charles has called those who disagree with the concept of serious man-made climate change “Headless Chickens”. To call scientists, with whom you disagree, names is disgraceful. Science thrives on dissent and argument and it is by this means it flourishes. For example, in 1976, at a conference in Madison,Read More
Transgenic Crops: Herbicide Resistance Weeds are a major problem for farmers and have been since the dawn of agriculture 10,000 years ago. The earliest farmers weeded their crops by hand, a laborious and time consuming activity. Subsistence farmers in some less developed countries still farm this way, with their children often missing school to helpRead More
Wrinkled pea vs rounded pea and the important difference… In the mid 1800’s, Gregor Mendel was a monk in a monastery in the city that is now called Brno in the Czech Republic. He grew peas in the monastery garden. Each variety of the peas he grew had distinct characteristics such has height, flower colourRead More