Bigger not better
Here's a quick SMART board idea to show the difference between increasing resolution and magnification. I did a similar thing today but I drew a little squiggly thing instead of a spot. Could be a bit...
The Gong Nghiem theory
This sliding whistle experiment is a nice one (one day will have to disinfect those whistles I think). The note from the whistle is analysed using audacity. The original worksheet has instruction on...
Harmonic skipping
I'm doing standing waves with my HL class and was wondering if anyone had ever skipped the second harmonic on a skipping rope. If I read my own blog then I would know that they have. But anyway I searched...
On that note
Even though Lamis has been helping me by wearing her I love Egypt T shirt, I have to report that I failed to mention the Egyptian pyramids in more than 3 lessons. One of those was about how the Egyptian...
The QI effect
Have you ever seen the programme QI? It's one of my favourites, in fact is just about the only programme I watch on real TV, everything else, The Wire, Breaking Bad etc. is streamed from the net. QI stands...
Metro Gnomes dance in step
Yesterday a colleague (Pete) shared a link with me on facebook - discordant metronomes. I don't think I would have expected this to happen since I would have thought that for the metronomes to get into...
Working in pairs (frequently given answer)
Miary, the student in the photo is asking me one of those frequently asked questions, "if we work together can we use the same data?" Actually he is really not saying anything but probably wondering what...
Ancient Egypt
Last week I was talking about the disposal of radioactive waste with my SL class trying to get across the points about how difficult it was to plan for storage of anything for 100,000 years when even...
Untestable theories (and hairy phones)
If you were to say that your phone has a fringe then people would probably think you'd bought a wig for your phone, as an IB physics student/teacher you may think otherwise. I guess light fringes are...
Point break for ants
If I was a surfing ant I would be very excited about the scene I saw on the way to work the other morning. The Fjord was dead calm so the waves created by a passing boat where rolling cleanly towards...