Christmas crossword
Across Down 3. Reagan is negative on election poster (8) 8. Strong I Aluminium gives type of energy (9) 9. Shout zero Watts colour of Sodium spectrum (6) 10. Sounds like a question about units of power...
Mini IA
After finishing mechanics I get my students to do a mini IA investigation. They have to come up with a research question related to a bow and arrow, then with my guidance they complete a full report....
Sorry Mr Kirchhoff
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What's in the box
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Hiding the physics
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X ray mask
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How do you show that?
It's rare that we need a 3D representation in the mainly 1D world that is IB physics but polarisation is one where it helps. I was trying to explain what I meant by the plane of polarisaton and the place...
Where's that from?
Resolvance from Chris Hamper on Vimeo....
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Don't look at the laser
Have you ever wondered what it would be like to look at a laser? Shah wondered too but he's probably damaged his eyes enough looking at sunspots for his EE research so decided to use his phone instead....
That old chestnut
It's an oldie but a goody, the one about the two perpendicular polarizers and a 3rd one is placed in between at 45°. Surprise surprise light comes through. No surprise for me of course, I know the punchline....