On any heat producing object
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DAPPH
as dyslexik as I'm daft
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A trained 26 yr old surveyor turned up to help me set out the levels of an 80 degree slope over an area of 20 mtrs by 40 mtrs .
Sorry Dave I can't do it the batteries are flat , he bleatd. ...... He was amazed when I laid a mtr of thin tube on a decent 6 foot level and got him to tape up stakes for me . Even more gobsmacked when I did the 3, 4, 5 triangle for right angles using a str120 KG bs Dacrom seafishing line pulled taut & tied to horizontals using nails at the cross over points as well as tied on knots on the Dacron to mark the 3 & 4 points
A few months late as we were ready to errect the portal building he turned up as he was passing by . Using his electronic stuff he was amazed I'd got it as good as any site he'd surveyed.
I asked him how did he think the pyramid master mason builders got such an accuracy if it wasn't for maths and reasoning .
DAPPH
as dyslexik as I'm daft
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Farside , don't you recall having to tie thick hessian corn sacks or fit special mufflers over front engined car radiators in severe frosty weather .? It's also a good reason to point radiator ends of cars to a wall so th wind chill does not kill the anti freeze treated coolant . I Germany we had three bottle of different antifreeze strengths on a shelf out side our guardrooms in the winter months . They were checked for crystals of ice every 20 min in severe cold weather .
Three time in 15 yrs of service life I was dragged out my slumbers to get dressed as warm as I could and go and help drain all vehicle rads of trucks parked outside as the temp was south of - 25 oC
MetalMonkey
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There are still plenty of bright, extremely hard working youngsters that come through the system, often despite.
It's worth noting that, GCE,GCSE, O, A and T levels are pretty much irrelevant if you going into the STEM field. They are just a stepping stone to university, which is a stepping stone to a masters, which is a stepping stone to a PhD. And then your real education starts when you actually get into research.
So while it is disappointing that school standards are slipping, and it means more catching up at uni, it doesn't necessarily equate to less quality out the other end. It takes an incredible amount of work to get through the system, which has the effect of sorting the wheat from the chaff, so to speak.
Still, it would be nice to see STEM encouraged at all levels to get kids interested while they are young IMO.
Pete.
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Back in 2009 we had to cut out the concrete wall to allow the new tyne tunnel under-water sections to be connected at each end to the cut & cover land sections. We had setting out responsibility so we hired an agency engineer. An old Welsh fella turned up one day and set it all out with a tape measure and plumb bob. I got hauled into the office to explain why we weren't doing it 'properly' with a EDM or total station. I asked the engineer and he said we were only cutting vertical cuts so what was the point when gravity still worked and he had 200mm clearance each side anyway.
They hired another engineer to check his work with a warning that if it was wrong we would have to pay for the second guy. He spent all day with his total station to confirm that the cuts were correct to 2mm over 24 metres straight down.
Seadog
Save the planet. It's the only one with rum!
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No. I gave my 1966 maths 'O' level paper to a friend, a maths teacher. He took it in to show colleagues. They were astounded at the level if the questions.
In my opinion the great dumbing down started with the GCSEs.
addjunkie
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Thats all to do with a lack of basic discipline and respect for the system. Just like these little scrotes zipping round the streets thinking they can do what they like because they are wanna be gangsta….a separate topic really.
dobbslc
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Did he mention aliens?
Smallfry
HE's Spartacus.
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All this amazes me really. The Romans and their straight roads are quite easy to figure. I used to live near to Strood in Kent. We used to play on the railway sidings there, and all the other mischief, but there is the Strood railway tunnel that runs from Strood to Higham. Built originally as a canal tunnel in 1830ish, (you can find the history online if interested) It is two and a half miles long through chalk, and if you stand in the middle of tracks, which I have, you can see the light at the other end !
Apparently they started from both ends. How did they do that ??
Kayos
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I've been away this week, very nice stepping out of a hotel to a warm, defrosted car
Preconditioning the battery is done by putting the charging station as the sat nav destination, in the cold if I don't do that it charges at about 18kw until the battery warms up, usually takes 10 mins or so
This is what I think when I see people scraping ice off their windscreen, instead of using an app while having breakfast
Preconditioning the battery is done by putting the charging station as the sat nav destination, in the cold if I don't do that it charges at about 18kw until the battery warms up, usually takes 10 mins or so
This is what I think when I see people scraping ice off their windscreen, instead of using an app while having breakfast
Pigeon_Droppings2
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Agree ...but important to remember it's the exams that they dumbed down ...not the people taking them!
I did GCSEs...as said above they were just a stepping stone to something else.
I got 10 GCSEs ....if I had done O'levels maybe would have got 5 but that would still have been a great result. I don't think anyone assumes they're 1-1.
Seadog
Save the planet. It's the only one with rum!
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Very true. However, if you're not given the tools to make learning easier, you're at a distinct disadvantage.
ajlelectronics
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And if the "lid is kept on the jar", the same will apply.
MetalMonkey
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Park the car in the garage overnight - or is that another joke...
Alternatively, start the engine up and let it defrost on the driveway? No app required, and no - not illegal.
Or better yet, just get the chauffeur to pick you up, dear boy.
ajlelectronics
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I note that there have been a spate of thefts from driveways as a direct result of this practice, recently. No doubt leading to much bibbling from the owners.
Kayos
Gone......
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Park the car in the garage overnight - or is that another joke...
Alternatively, start the engine up and let it defrost on the driveway? No app required, and no - not illegal.
Or better yet, just get the chauffeur to pick you up, dear boy.
No garages at the hotels I use, I must get an upgrade next time
Out of interest, does the automatic de-icing work on the headlights and rear light clusters, and is the screenwash tubing preheated?
addjunkie
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Thats because you are away for work, and by the mere fact you work, in effect makes you and the rest of us all the peasants. Joking aside, the ability to defrost the car and warm the seats up etc is a good thing.
Is it done by heating elements in the different parts of the car, or by heated air on recirc.
Living very rurally I just start it up and leave it running, no fear of it going walk about, but in the towns I can see the concern with all the uncontrolled teenage idiots on the loose. Not all teenagers mind, there are many decent kids about too.
not done it yet
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Dead right there. Just look up the operating parameters for each of the different Lithium battery chemistries. They will all discharge at low temperatures (albeit more slowly) but the minimum charging temperature is out there for those that have a brain.
As an aside, Lithium Titanate cells (just one of the many Lithium cell chemistries) is able to both discharge and be charged at far lower temperatures than the more common chemistries.
not done it yet
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I have avoided using unnecessary apps, etc - so far (my only app is for charging/paying at the Tesla superchargers that are now open to any marque).
I simply programme my starting time and the car is warmed up ready for that time. For me, it has been (on the occasional times I’ve needed it) while the car is on charge - so basically it uses power from the grid.
Regarding lights and screen wash - they are the same as ICE cars. More alcohol, to avoid freezing, for the washers and the lights will need attention - particularly the low wattage of LEDs, of course.
If there was, say, 100mm of snow on the car, some initial clearance would be sensible. It’s all common sense to me. Might not be to everyone.
