Physics Stop

Messing up the test: the next installment

Marcus Wilson Apr 29, 2015

In the last few years I've been experimenting with the way I test our 3rd year mechanical engineering students in their 'Dynamics and Mechanisms' paper. I've chosen this paper because (a) it has more than a handful of students, and (b) I am in charge of it. When  I've suggested to my peers that I do something similar with … Read More

A lot of huffing and puffing

Marcus Wilson Apr 15, 2015

While there is some great fiction out there, one really shouldn't try to learn much physics from it. One case in point, which I am forced to listen to over and over by the youngest member of our house, is the story of the Three Little Pigs.  I'm not talking here about the relative merits of various building … Read More

How high is a winning cricket score?

Marcus Wilson Mar 24, 2015

I can't help thinking that the West Indies team got their run chase strategy wrong on Sunday night. They had a tricky task ahead of them. One might say the problem was one of their own making, judging from the rubbish that they served up to Guptill to hit at the end of tne New Zealand innings, but that … Read More


Why does time go forwards?

Marcus Wilson Mar 10, 2015

Further to my last post, here's a very accessible discussion on some of the physics related to 'the arrow of time'. Maybe, just maybe, Benjamin has the right idea after all...   … Read More

The arrow of time

Marcus Wilson Mar 02, 2015

Benjamin is now two-and-two-thirds, or near enough. As ever, his grasp of physics continues to improve.  In the last few weeks, he has been picking up the idea of time.  We have a large (more accurately, LARGE) analogue clock on the wall of our lounge. He's watched me take it off the wall, change the battery and move … Read More


Seeing spots before my eyes

Marcus Wilson Jan 23, 2015

"Doctor, Doctor, I keep seeing spots before my eyes" "Have you ever seen an optician?" "No, just spots". The concept of seeing an optician floating across my field of view is a scary one indeed. However, the concept of seeing spots doing the same is one I'm coming to terms with.  I had a talk … Read More