Uncertain about uncertainties
Continuing the discussion on different ways to deal with the uncertainties in a gradient I have been playing around with some data trying different methods and this is what I have found out. Firstly changing...
Not worth the effort
After a recent (today) discussion on the OCC I thought I would see if its possible to do best fit max and min lines by eye in Excel. I thought it should be possible using sliders and it is but its just...
5 fun physics phenomena
I really wish they hadn't given the iflscience web site that name, they have some cool stuff but the name stops me from linking to it, however, I liked this one so much I'm making an exception. The video...
Quizlet, notelet, leaflet, pamphlet
During the first 10 minutes of every lesson I give my students what they have come to call a testlet. A testlet is a small test, like a piglet is a small pig, a notelet a small note a leaflet a small...
Lava lamp?
I guess they are called lava lamps because they look like lava but what exactly does lava look like? I've only seen it flying out of volcanoes on TV and it doesn't look like this. This looks like globs...
Erdinger's equation
It's been a superb summer up until now so I have been able to enjoy a few evening beers on the balcony. During one such evening I became interested in the motion of the bubbles rising to the top of the...
Resonating in Gloppen
This weekend we went for a trip to Gloppen which is about 2 hours North. We stayed in an apartment on a campsite that looked out over a long floating dock. The dock was quite unstable and wobbled a lot...
One child roundabout
I was visiting my mother in Kenilworth last week and we went for a walk in the nearby park. I used to take my children there when they were small, the most interesting piece of apparatus was a one child...
Lord of the ring
A month or so ago I saw an amateur video of a street performer that has now been remade and is again doing its rounds on the social media. The performers name is Isaac and the wheel is called a cyr wheel....
Fake fireworks
This isn't the right season for fireworks in Norway since it never gets dark enough to see them properly but I do like a good firework display so clicked on a link to this fantastic firework display on...