by msander | Aug 14, 2018 | Gr 9-10 Science, Gr. 11-12 Physics
he useful glare-blocking properties of polarized sunglasses are well-known to just about anyone who goes outside. What isn’t so well-known is how they reduce glare in the first place. That answer is deceptively complicated! Hosted by: Hank Green Head to...
by msander | Aug 3, 2018 | Gr 9-10 Science, Gr. 11-12 Physics
UV cameras expose a hidden world and reveal the incompleteness of our perception. In summary, ultraviolet light interacts differently with matter for a number of reasons: 1. Some pigments selectively absorb UV so they may appear white in the visible but dark in the...
by msander | Apr 2, 2018 | Gr 7-8 Science & Tech, Gr 9-10 Science, Gr. 11-12 Chemistry, Gr. 11-12 Physics
This interesting resource shows what happens when a light bulb is placed in a microwave oven. Click on the source to get a video and Steve Spangler’s explanation of how this works. Source: Microwave Light Bulb – SICK Science | Science Experiments | Steve...
by msander | Mar 19, 2018 | Gr 9-10 Science, Gr. 11-12 Physics
MIT Media Lab researchers have created a new imaging system that can acquire visual data at a rate of one trillion frames per second. That’s fast enough to produce a slow-motion video of light traveling through objects. Video: Melanie Gonick/MIT Read more:...
by msander | Mar 15, 2018 | Gr 9-10 Science, Gr. 11-12 Biology
Introduction Watch as chlorophyll transforms from an intense green to a bright red colour as UV light is absorbed and photons are emitted from the solution. Discussion Chlorophyll is the green pigment essential for photosynthesis. It is found in all plants and readily...
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