du/dT * dT/dt = du/dt

but t has no effect on u, only on T. If you hold t constant, all the variation in u is due to T.

this might be a correlation causation conflation confusion

Which is good, but How do you choose the best consumer guide?

Beko! because Beko.

my question was related to the statment you made that water is non-newtonian in nature

I thought water was one of the few Newtonian (or near as damnit) fluids

thats what ive been trying to do

I know, and you’ve done very well, it’s just that there are still some big gaps in my understanding. But given that mike asked us to go our own way and I guess he’s the thread owner or boss or something, we’ll have to leave it for now

Can the airplane/conveyor people get their own thread? Or, better, do some Googling, reading and thinking?

Or you could just explain it to us

Did you just copy that? ‘cos that flapping bit sounds too vague, the amount it would have to ‘flap’ would need to change with airspeed.

Fridge / Freezer comparisons are dead easy. The main difference is that freezers tend to be a lot colder.

how do they do that?

ooops to late

What about helicopters?

No, really if you think about a helicopter’s rotor, on one side the rotor is moving into the direction of travel and on the other it is moving with the direction of travel, so the lift being generated would vary as the rotor goes round so it will be wanting to flip over the whole time

wind up, airplane down. right?

the shape of an aircraft wing is such that the air passing over the top of it has to travel further than the air passing under it. to do this is has to travel faster. this creates low pressure above the wing and that in turn creates lift. how much air is needed and at what speed is dependant on the shape, size and orientation of the wing.

ok, that starts to make sense… is that why aeroplanes cannot fly upside down?

http://www.guardian.co.uk/technology/2013/jan/12/parents-children-in-app-purchases

To even consider it requires a complete ignorance of how an Aircraft actually functions.

Hmmm, this is an interesting point. I mean I think I know how an aircraft functions, and the conveyor question seems trivial. Clearly the relevant part is the airspeed over the wings. But what are people’s misconceptions which makes the question problematic? For me, I thought the assumption was that the air speed of the plane was zero so flight was not possible.

But just to be sure, can you clarify how an aircraft actually functions?

Its when you go from describing yourself as “I’ve given up smoking” to “I don’t smoke”. About a year I’d say.

and when people ask “How long have you stopped for?”
you say smugly “For ever”

When you’ve reached a month, buy a pack and smoke them, just to show yourself how you can take or leave it if you please.

you can also get a mate to stick a couple of bids on

Probably get the best price by sticking it on the classifieds here at an overinflated price and shutting down any discussion or objection by alerting the mods and claiming that the price is less than you paid for it.

Auto trader too.

ebay is a waste of time

Thanks TerryWrist I’m glad we’re friends again. I haven’t found cats yet but I have just found this. Amazing!!

http://www.youtube.com/watch?v=6WpMlwVwydo

Apparently there’s another famous one where a young lad get his bits fingered, or something. Anyway, he says Charlie fingered my bits and it’s hilarious.

Aren’t you supposed to publish your cookie policy more clearly now?

So even after the fabled evictions, about 1,007,000 people visited and didn’t come to the forum!!

What is that as a percentage change from when the rogues were here?

why were those folks in 1963 digging their cars out? the rest of the road was still too deep to drive

it would have to be a hell of a lot of friction. i.e. braking.

or a fast conveyor

the fact that the ‘ground’ that the plane is standing on is moving in the opposite direction is entirely irrelevant. it will just make the wheels spin faster.

Ok, assuming no friction.

That’s the point. The plane will not take off if it’s static and no air is passing over the wings but because the wheels of the plane are not driven and freewheel they don’t stop the plane from moving forward. The plane is pulled through the air by it’s propeller not driven by it’s wheels

So pulling it along on the sheet was not like a treadmill then. I thought the whole point of the tread mill experiment was that the plane stayed static.

if the altitude has such an effect on performance, lack of oxygen etc. why do they race there? Surely in ‘normal’ conditions everyone would be faster. Is that the only place in the world with enough flat ground?

looks more like an early MR2.

Talking of which, what have Toyota done to replace the MR2?

But that plane was moving forward relative to the cones!

Which comment?

Local food bank or a charity group that feed the homeless.

Often these folks are very fussy about what food they will accept. I used to run a sandwich business, at the end of the day I’d try to take my unsold sarnies to donate. They couldn’t take them

Clay path is in town, you can head up to the shopping estate where there is a smaller operator. For a puncture, i’d do quik-fit. for a tyre i’d go up a road

you want a quick-fit or a small operator?

“…crate full of muddy water…” , in Burma??????
That bollocks, Wiki says he was buried in Chicago.

*Clap clap*

The only logical reason i can see for the rule, given the reasoning presented, is that STW staffers are shifting stuff out thorough the For Sale section at inflated prices

nah, not right now. I might choose to get offended later.

Carry on. As you were.

Personally, I find the term Jeyboy homophobic and offensive. If by paying a fiver you can get away with it it might lead to all kinds of tomfoolery

Is this soon to be followed by another STW my wife left me thread?

My senior tutor was an alcoholic (came into lectures drunk many a time…) and the course was largely a waste of time.

Yeah, you turned up, so you did your bit.

Jamaica?

Skagen or Boccia Watch