From Sparky Holkham
While pondering the laser that can see round corners (12 December 2015, p 18), I felt the need to point out that, despite being just a Jack Russell terrier, I can do this for little more than the price of a meal a day. I do it using my sense of smell. Perhaps when trying to discover what lies around the next corner (and wouldn’t we all like to know?), researchers could approach this from a different – and far more economical – angle.
c/o Tony Holkham, Blaenffos, Pembrokeshire, UK
