by msander | May 20, 2019 | Gr. 11-12 Physics
When physics students first learn about Newton’s law and momentum, they get the impression that it’s all about mass. If that’s true, how can mass-less light have momentum? It’s because mass isn’t actually required.
by msander | May 13, 2019 | Gr 4-6 Science & Tech, Gr 9-10 Science, Gr. 11-12 Physics
Steve Spangler is a celebrity teacher, science toy designer, speaker, author and an Emmy award-winning television personality. Spangler is probably best known for his Mentos and Diet Coke geyser experiment that went viral in 2005 and prompted more than 1,000 related...
by msander | May 6, 2019 | Gr 9-10 Science, Gr. 11-12 Physics
Not only are small, energy efficient LEDs used in almost every piece of modern electronics, they have the greatest potential impact on energy savings globally. But LEDs didn’t have much use until the ’90s, when Japanese scientists discovered the missing...
by msander | Apr 29, 2019 | Gr 7-8 Science & Tech, Gr 9-10 Science, Gr. 11-12 Chemistry, Gr. 11-12 Physics
This video deals with common misconceptions about temperature and thermal conductivity. Made for ABC TV Catalyst http://www.abc.net.au/catalyst/ as an extended version of my Comparing Temperatures video: http://www.youtube.com/watch?v=hNGJ0W…
by msander | Apr 19, 2019 | Gr 9-10 Science, Gr. 11-12 Physics
There’s a saying that “it’s not the volts that kills you, it’s the amps” and while that’s true in a way, you can’t have amps without volts and skin resistance plays a big part too. This video explores all this, introducing...
by msander | Apr 18, 2019 | Gr 4-6 Science & Tech, Gr 9-10 Science, Gr. 11-12 Chemistry, Gr. 11-12 Physics
They knew it had to exist, but they just couldn’t find evidence of it. Now, after decades of searching, astrophysicists have found verification of the first molecule that formed after the Big Bang. Source: Astrophysicists find elusive molecule that...
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