London had 8" of snow overnight! First time in many years due to polloution :twisted:
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London had 8" of snow overnight! First time in many years due to polloution :twisted:
Here in the northern sub's we have recorded 46.7 at 1630 with a nw wind gusting 45 - 50 km/h.
im simply terms its bloody hot and windy.
.
We are currently getting a lot of smoke coverage at upper levels from kilmore east fires. Wind is starting to shift wnw currently very gusty.
Would hate to be chasing a fire today. 3 rail lines cut from fires
It's 28 C inside the house at the moment.
One of the advantage of the location of my place in glorious Tuross Head is that winds from the N or NW have to blow all the way across Coila lake before they reach me. So even the hot NW winds are not as hot here as in Moruya.
It's a bit like being in front of an evaporative air cooler.
the change is here, it is 33.5 in the CBD. quite a drop with a gust of wind.
I believe aluminium, aluminum and alumium melt just above the temperature at which softwood like poplar chars.
Years ago when I had some welding done on the side cover of the engine of my 125 Maico, it was critical that it didn't distort because with a rotary intake valve, that cover needed to be airtight as it covered the carburettor.
The welder warmed up the whole cover with the oxy and then began to stroke it with used match. He explained about the relationship between the charring and melting temperatures.
He started the actual welding as soon as the match started to char.
It seems he knew what he was doing. It was a perfect job and the cover remained airtight.
YOU POOR GUYS! I HAD TO TURN THE HEATER ON THIS MORNING ON THE WAY TO WORK HE HE :D
As a matter of fact I work for an aluminium extrusion company. We dont exactly melt the aluminium but heat it to about 500 degrees and push it through a small hole with a 2000 tonne press, much like the play doh fun factory. In a nut shell that's how your ally window frames on your house are made
Am sat up in bed with the central heating going looking out at snow covered hills. No chance of taking Barbara's Smart car out here, many people have resorted todriving their old Land Rovers rather then their 2 WD cars. :oQuote:
Originally Posted by whitakerb
Pure aluminium (99.9999%) has an extremely sharp melting point range and is one of the materials used for calibrating thermal instruments such as DSC etc. Price of this grade of Ali is expensive, start takling hundreds of £ for a few grammes! Start adding impurities to it and the melting point broadens. Commercial grade aluminium would have a broad melting. Ali window frames not used here as they are too much of a heat sink!
Extrusion and or die drawing is a method of both changing the shape of a material and it's physical properties. Guess who used to work on the die drawing of polymers ! :D Guess who still does? :wasntme:
Regards
Brendan
PS keep safe in that hot weather as we try to keep safe in our cold weather
Poor North Queensland is flooding, groceries being airlifted into Cairns by Jumbo. Ingham experiencing worst flooding in 40 odd years; Burdekin about to break it's banks. Glad I'm in the office these days, instead of the cab!
Lucky bunch.Quote:
Originally Posted by mns488
Air is still very still out this way. Temps are still not droping.
I think I'd rather be sweating in my lounge than swimming in it.Quote:
Originally Posted by George130