The electromagnetic waves in a microwave travel at the speed of light. Figuring out their wavelength will give us a tasty approximation of the speed of light!
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Making Curds and Whey
Step one in cheesemaking is acidifying the milk to separate curds (which become cheese) and liquid whey (water, proteins, and other stuff).
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The Science of Tightrope Walking
Sometimes it’s hard enough just to walk on the sidewalk. How is it possible to balance on a tightrope, and how does that big heavy bar fit into the picture?
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Understanding Centrifugal Force
A rotating system requires two forces – a forward force and a force in towards the centre. If you didn’t have the force in toward the center, then we wouldn’t have a curved path. So why do seem to feel this force pulling things outward?
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Polarized Light
Passing light through a polarizing filter gives it intriguing properties that are exploited all around us, particularly in the LCD screens we see on our laptops and other electronic devices.
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Storing an Electric Charge
Capacitors are used to store an electric charge for quick release. They are common components of electronic devices, but they need to be treated carefully, because they can release a considerable jolt of electricity!
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Lenz’s Law
We know that copper and aluminum are not typically attracted to permanent magnets, but unexpected things happen when the magnet is in motion!
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Falling to Earth Due to Gravity
The ‘monkey gun’ demonstration is a striking example of gravity at work, illustrating how all objects fall at the same rate, even if they’re not falling straight down.
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The Strength of Arches
Structures around the world rely on arches for support. Arches are extremely strong under compression, even in items as seemingly delicate as eggshells and lightbulbs.