by msander | Sep 5, 2018 | Gr 7-8 Science & Tech, Gr 9-10 Science, Gr. 11-12 Biology, Gr. 11-12 Chemistry
UV at ground level is non-ionizing but it damages DNA and causes photoaging – how? Also, it turns out glass doesn’t block all UV (specifically UVA passes through). This is something I learned filming with the UV camera inside. Special thanks to Dr. Hayley...
by msander | Aug 24, 2018 | Gr 9-10 Science, Gr. 11-12 Biology, Gr. 11-12 Chemistry
We asked two farmers on either side of the pesticide/herbicide debate — who happen to live in the same part of Saskatchewan — their thoughts on this issue. Here’s what they had to say. Source: 2 farmers weigh in on the pesticide vs. organic debate: Opinion | CBC...
by msander | Aug 20, 2018 | Gr 9-10 Science, Gr. 11-12 Chemistry
The use of hydrogen is still in its infancy, but the potential is significant for how one of the most abundant elements in the world could change the country’s transportation, electricity and energy sectors. Source: How hydrogen could shake up Canada’s...
by msander | Aug 16, 2018 | Gr 7-8 Science & Tech, Gr 9-10 Science, Gr. 11-12 Biology, Gr. 11-12 Chemistry
Thousands of animal species use toxic chemicals to defend themselves from predators. Snakes have blood clotting compounds in their fangs, the bombardier beetle has corrosive liquid in its abdomen and jellyfish have venomous, harpoon-like structures in their tentacles....
by msander | Aug 15, 2018 | Gr 9-10 Science, Gr. 11-12 Chemistry, Gr. 11-12 Physics
An experiment on how turbulent convection in Earth’s core makes a magnetic field Get a free audiobook with a free 30 day trial at http://www.audible.com/Veritasium or text Veritasium to 500-500 Huge thanks to Prof. Dan Lathrop and team: http://ve42.co/Lathrop...
by msander | Jul 19, 2018 | Gr 4-6 Science & Tech, Gr 7-8 Science & Tech, Gr 9-10 Science, Gr. 11-12 Chemistry, Gr. 11-12 Physics
The resonant frequencies of your vocal tract change when you breathe in a lungful of helium. Now, here’s how and why helium affects your voice. Source: Why Does Helium Affect Your Voice?
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