To make the surface of solar cells less reflective, and therefore absorb more light, scientists turned to a black butterfly for inspiration.
Our ever-popular Question Show took place on November 22 in Ottawa. Watch it now!video
- Listen to Full Episode 53:50 Listen 3:54
Dr. Kathy Focsaneanu answers why the lemon seeds continually rise up and fall down in carbonated beverages with spirits. More
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Dr. Nafissa Ismail has two answers on why we associate some colours with specific emotions. MoreListen 4:12
If a time traveller left a 2017 cell phone in 1967, how much could 1967 technology retrieve from it?
Dr. Abdulmotaleb El Saddik speculates on how much 1967 technology could actually retrieve from today's smartphones. MoreListen 5:32
Dr. Dawn Hall, exhibition interpretation officer and science adviser at the Canada Science and Technology Museum in Ottawa, answers Chloe Cook's question. MoreListen 5:13
What was the evolutionary advantage for Homo sapiens becoming essentially hairless compared to other primates?
The answer depends on which hypothesis you believe, explains Dr. Andrew Simons. MoreListen 4:58
How is it possible in the vastness of space that our Sun ever had the density of gasses needed to form a star?
Dr. Jesse Rogerson goes way back to the very first fraction of a second after the Big Bang for the answer. MoreListen 5:49
Dr. Michael Hildebrand says chronic pain can be caused by many mechanisms. MoreListen 4:27
Dr. Derek Mueller talks about when extra sunlight in the summer was enough to tip the scales towards a warming climate, leading Northern ice sheets to start to melt rapidly. MoreListen 6:54
Those who are blind dream using other sensory perceptions like sound and touch, says Lia Turner. MoreListen 5:47
How can electric cars be without carbon emissions if the source of the electricity is a carbon source?
Dr. Melike Erol-Kantarci says the amount of carbon emissions that electric vehicles are responsible for will vary depending on where you live. MoreListen 4:44