Tagged: light

Pepper’s Ghost - Physics Stop

Marcus Wilson Nov 01, 2012

 Have a good look at the photo. The pretty rhododendron to the left of the chair looks a bit odd. That's because it's a ghost shrub. No, our garden isn't haunted, and neither have I doctored the photo; it's an example of Pepper's Ghost - an illusi... Read More

Time travel - Physics Stop

Marcus Wilson Aug 24, 2012

On Monday evening this week I managed to do a bit of time travelling while driving back home. I was driving back through one of those heavy showers that have been marauding around the place recently, with windscreen wipers full pelt on a rather wet roa... Read More

How to cheat aging - Physics Stop

Marcus Wilson May 04, 2012

It's 'Wellness Focus' week here, and there are all kinds of wonderful activities going on to promote health among the employees of the University of Waikato. I've just finished a REV class, which has finished me off for the whole afternoon, I think.  Yesterday, I had a free health check - where my blood pressure, cholesterol etc was measured, and … Read More

Mysterious power generation - Physics Stop

Marcus Wilson Apr 30, 2012

One consequence of being a physicist is that you can't go anywhere without seeing physics calculations that need doing. I've just been to our library hunting down books on the medical technique of transcranial magnetic stimulation (TMS), which was an interesting exercise in itself, since one textbook I found also has a chapter on homeopathy. Hmm. So how much do … Read More

The most interesting “photo” I’ve ever taken - Physics Stop

Marcus Wilson Apr 18, 2012

This week I've started my Study Leave with a short visit to the University of Otago in Dunedin. Today, amongst other things,  I had a quick tour of one of the atomic physics labs there. Recently, Mikkel Andersen's group has managed to trap a single atom of rubidium. It's quite a complicated process - you can read about it in … Read More