R/€ = 19.80 Change: 0.11
R/$ = 17.01 Change: 0.07
Au 1853.07 $/oz Change: -25.02
Pt 840.08 $/oz Change: -19.30

Terry Mackenzie-hoy

Terry Mackenzie-hoy

Mackenzie-Hoy is a consulting acoustics and electrical engineer –

Corruption 101

18th September 2020 Every so often, we (my consulting practice) get an email request to quote on the supply of a service or an item of equipment for which we are agents. These requests vary from a simple email to a request-for-quotation (RFQ) document of some complexity. The simple email requests can be categorised... 

Energy twaddle

11th September 2020 An article in Tech Central begins: “What if I told you that our energy crisis could be alleviated with one simple change? Sounds ridiculous, doesn’t it? But, as a professional, with almost a decade of experience working in the energy space, I can tell you it’s that simple.”  The author goes on to... 

Protect our heritage

4th September 2020 Port, sherry, champagne, Melton Mowbray pies, Cornish pasty, Scotch Whiskey, et cetera, are products whose names are protected by international laws. The notional purpose of the laws is to (I quote) “protect the reputation of the regional foods, help producers obtain a premium price for their... 

Seriously misguided again

28th August 2020 I recently wrote about a court case between the National Regulator of South Africa (Nersa) and Eskom, which Eskom won. Nersa is a government body that is supposed to regulate the electricity, piped-gas and petroleum pipeline industries in terms of the various applicable national regulations. By... 

Letter to the President

21st August 2020 My editor has discouraged me from writing about politics in this column, and I think rightly so. My father and my mother were in the Second World War, in uniform, and both had a very healthy distrust of politicians, which they passed on to their children. Thus, I have a very keen sense of what... 

The sublime to the ridiculous

14th August 2020 Ah, let’s have a few trick questions: (Q) What is the difference between a Cape Town MYCITY Bus and a fire on Guy Fawkes Day? (A) The Guy Fawkes fire only gets burnt to ashes once a year. (Q) When will Cape Town trains be able to provide transport to all Capetonians? (A) When people stop burning... 

Nondirectional geese

7th August 2020 I live in Pinelands, Cape Town. Somebody has to. Pinelands is dull. It is one of two suburbs in Cape Town that do not permit the sale of alcohol or the licensing of bars. If you want a good night’s drinking, Pinelands is not your place. A potential girlfriend broke it off with me because I live... 

How to cure a hide

31st July 2020 These days, tanning a hide is an automatic process that generally involves chromium sulphate, a kind of salt, as the tanning agent. However, back in the days when there was no chromium sulphate, hides were cured using a process called brain tanning. What you do after skinning the animal is to... 

Substation Time Bombs

24th July 2020 About five years ago, I made a policy decision that I would never go into an 1 000 V substation again unless it was maintained by a reputable authority. Most 11 000 V substations are worse than 400 V substations and higher voltage substations. If a 400 V substation has a fault, there will be a... 

Seriously misguided

17th July 2020 One thing feared by all production businesses is a sudden change in profit. ‘Production businesses’ are businesses which take a lot of materials and convert these into something else  – for example, mines take ore and produce metals, milling factories take wool and weave it into fabrics, clothing... 

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