NiFe Cells….
Ah, what in music is called a ‘recapitulation’.
It is an acronym for rechargeable Nickel-Iron couple, alkaline electrolyte cells, which along with lead-acid equivalents were once standard in mining, and used (often second-hand) by cavers until around the 1980s.
The battery was a heavy, bulky lump worn on a belt, but they became obsolete in that hobby because they could leak electrolyte dangerous not only to the user by skin burns, but also potentially lethally by corroding the plastics-fibre ropes and harnesses starting to be used in caving.
What replaced them? Acetylene lamps, for a decade or so!
A strange historical loop, for the alternative in times past to Nife and “Oldham” lead-acid lighting had been small self-contained acetylene lamps clipped to the helmet. These were also used in non-gaseous mines.
The modern form used a larger capacity, belt-carried generator connected by flexible tube to a burner on the front of the helmet. I think mine is now in Wells Museum.
Anyone who has seen the caterpillar-tracked, (Ruston?) traction-engine built I think in 4″ (6″ ?), scale by Steve Baldock but now owned elsewhere, will have noticed its acetylene lighting true to its unique prototype. He made an acetylene generator casing matching the original in form and scale, but the functional part is one of these modern caving acetylene units, hidden within.
And now? Almost universally, cavers now use small l.e.d based lamps worn entirely helmet-mounted.
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Trolley Buses…
I have never ridden in one but recall seeing them still being used in Bournemouth in the early-1960s. I think Bournemouth Corporation (another piece of nostalgia in that alone!) was the last in Britain to use them.
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Fruit Gums?
Oh, I liked them! And Fruit Salad, sold loose by 4oz units.
Remember ‘Dolly Mixtures’ too? I’ve had that many vaccinations and blood-tests in the last few years I reckon the NHS owes me one of those big, screw-top, sweet-jars full of those tiny fondants and jellies.
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Compound Multiplication…
What is the cost of a bunker-full of Welsh Steam Coal at so-many £.s.d per ton?
With some thought, I could still answer a Compound Multiplication question typical in the topic within the Arithmetic (not “Mathematics”!) we learnt, well, were taught, in Junior School. The same school introduced me, probably extra-syllabus, to:
Logarithm Tables….
Yes, I can still use them and my Slide-Rule, with a bit of revision!
Besides, the latter two or three decades of work meant understanding logarithms, not for times-sums but as the foundation of the deciBel scale. One of my superiors told me many work-experience students found dBs baffling because schools no longer teach logarithms. Worse, one was unable to perform what should have been fairly easy for him, a real-life calculation from equipment tests, because he’d never been taught Trigonometry!
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Not objects but attitudes – positive ones expressed by what some may recall, The Junior Weekend Book.
I still have my copy of this 1950s compendium of all sorts of magical things to read, sing, collect, do or make; and it was aimed at children from perhaps 7 upwards without at all patronising them. Indeed, its general intellectual and vocabulary level is quite grown-up.
Some of the poems and novel extracts had not been written for children anyway – I think I remember asking Dad what that strange phrase “b****y crate” meant, in a D.H. Lawrence poem about a pioneering Britain to Australia plane flight. From sheer memory one of the aviators says, “We’ll fly this b****y crate until it falls to bits at our feet”: I won’t spoil the ending for those yet to read it. The novel extracts avoided those by D.H.L., though… There are limits!
While the book’s toffee recipes do not tell you to ask Mum to simmer and stir the butter and syrup liquid for you. And another chapter assumes Dad will lend you his woodworking tools and supply the wood etc., so you, Dear Reader, can build a couple of real but basic boats so you can happily play Swallows and Amazons. Nor does Mum sew for you the simple tent for your adventures.
At least you won’t scald yourself or come home soaked from the un-plimmed boat sinking under you, by trying its puzzles. Some of those are hard enough to make most adults think for several minutes.