R/€ = 15.91 Change: -0.26
R/$ = 13.57 Change: -0.14
Au 1267.20 $/oz Change: -0.90
Pt 867.50 $/oz Change: 3.33

Terry Mackenzie-hoy

Terry Mackenzie-hoy

Mackenzie-Hoy is a consulting acoustics and electrical engineer –

Operation North Pole II

22nd June 2018 In last week's column, I told of Abwehr officer (German intelligence officer) Herman Giskes, head of Abwehr Section IIIF, who set his mind to capturing British agents who were either dropped by parachute into Holland or landed by boat. This was his plan: the Abwehr should concentrate on trying to... 

Operation North Pole

15th June 2018 Once upon a time, I tell the youth, there was a world war called World War II. Germany and Italy were fighting the UK, France and the US. The Germans invaded and occupied France, Holland, Belgium and Norway. The British decided to disrupt the German occupation of France and Holland by parachuting... 

Honest fee proposal

8th June 2018 I thought what it would be like to write a fee proposal in which I was honest about the services we will offer in a fee proposal for a contract. Here it is: Dear Client, 

Error messages and biometrics

1st June 2018 I thought I would write about error messages but it isnot a long enough topic for a whole column, so, in the later part of this column, I will also write about biometric identification. Error messages are the information that you are given, unusually on a screen, when you enter some data that is... 

The ‘going to the moon’ conspiracy

25th May 2018 One of the problems with the 'common man' is that he is really very stupid. Such persons not only do not know but do not know that they do not know. I recently heard somebody discussing the bible. They explained to the dinner guests that some passage "used to be in the bible" but 'they' (some... 

Really back in the day

18th May 2018 When I was in first year at the University of the Witwatersrand, in 1972, there were two computers. One was called IBM 360 West and the other IBM 360 East. West was for us students, East was for staff. Each of the computers was housed in an air-conditioned building (unusual at the time – we... 

Wheel of industrial safety has turned too far

11th May 2018 There is no hotter topic than safety matters on mines and industrial plants. It has become a religion. Like all religions, it causes some unintended problems. When I was young, I worked for a number of years on various mines and industrial plants. (I did this to get money to pay my university... 

Wither fundamental knowledge?

4th May 2018 I was drinking at the bar Elsabe used to call A Touch of Sadness. I was with an architect and Pierre F, a brilliant French fine artist and great conversationalist. Oh, yes, he has a doctorate in oceanography and used to work for the US's National Aeronautics and Space Administration. The... 

Some opportunities

27th April 2018 An unusual quiz: you are asked a set of questions which are largely hypothetical but, nevertheless, interesting. The questions are (as far as I remember) as follows: Would you chose to be (a) invisible (b) be able to predict the future (c) be able to read a person's mind but only briefly (d) be... 

Electronic loneliness: the nature of communication

20th April 2018 I claim that communication is only possible between two systems which have different information content. The information content of a system is the probability that it will receive a message it has never received before. Put more simply, if my information content is 100%, then I know everything... 

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