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archives

Physics

This category contains 15 posts

Science Videos that Rock

I’m a big fan of not reinventing the wheel. I also believe that using a multitude of tools and resources is valuable for all learners. As a consequence, I use a lot of resources developed by other people when I teach. I thought I would share some of those here. Crash Course – created by … Continue reading

Science Fair

It is impossible to write on every science topic out there, which is awesome. There is so much science going on, in all parts of the world. Some of it is done in universities or in organizations but a lot of it happens in other spaces where someone sees a need or asks a question … Continue reading

Running and knee health

I messed my knee up a lot of years ago. And by I messed it up, I mean someone else did something stupid that messed it up but that’s beside the point. I was told I would never do a lot of things again and some of them I have completely gone along with. I … Continue reading

Drafting in Sports

  Drafting is something that you hear about in a number of different sports. Basically, when you draft, you sit very close behind someone else (and by sit I mean paddle, swim, bike, run, etc). The idea is that you spend less energy than the person at the front. But how does this work? A … Continue reading

Floating photovoltaics: Do they reduce evaporation?

I saw this interesting article about installing floating photovoltaics on Lake Mead and Lake Powell in the U.S. as a means of generating power using renewables and reducing some of the significant evaporation from the two lakes. It makes sense that the solar panels will generate electricity, but I’m curious about two of the claims: 1) how much … Continue reading

How does the Aurora Borealis actually work?

Guest Blogger: Alex Diaz I have been looking to the sky since I was a very young boy. When I first saw the Northern Lights or, Aurora Borealis, they seemingly appeared within the blink of an eye. Nothing but green surrounded me and I remember wondering how does such a dazzling display of lights come … Continue reading

How does a rechargeable battery recharge?

I was talking about batteries in my physics class and it got me thinking, how do rechargeable batteries work? A battery (like the ones that died in my mouse this morning) uses chemical reactions to create a charge. Basically, (in really simple terms) the electrons get pushed up the equivalent of a really big hill … Continue reading

What is LIGO?

A few weeks ago, talk of gravitational waves dominated most of science reporting. Gravitational waves are similar to the ripples that move out along the surface of the water after you drop a pebble into a pond, except that instead of being ripples in water they are ripples in space-time. Einstein predicted gravitational waves as … Continue reading

A refracted hippo

Sometimes I am surprised when science hits me over the head during an everyday activity. I was at the Calgary Zoo a few weeks ago. One would expect that some biology may creep around the corner at you, but I didn’t really expect to see such an amazing example of refraction.   You can see … Continue reading

The physics of FOOSH

So at the moment I am teaching about momentum and impulse in my physics class. I really like these topics because they have so many real life applications that are easy for students to see. I’ve talked about car crashes, air bags, and crumple zones. I love bringing in a variety of different sports from … Continue reading

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