How Bored Am I?

[animal]

How do you calculate the cubic capacity of an engine from the bore and stroke?

[SBD]

work out the area of the bore (radius squared times Pi (sp?)) then multiplied by the length of the stroke.

I am more bored than you and I now have to go and sit through my monthly QA Bollocking, sorry I meant Meeting. If in doubt blame the QA Dept, marvellous.

[mondeoman]

pie r squared x stroke x no. of cylinders, where r =half the bore. and pie = 3.14159

Use dimensions in cm to get the vol in cc....

[Bodo]

mathematician's ¶: 3.14159265358979323846 26433832795028841971etc..

physicist's ¶: 3.14

engineer's ¶: around 3

[alfa dave]

Even easier:
www.offroadvw.net/tech/wes/capacity.htm

Dave

[Bodo]

oh, forgot:

PHer's ¶: pie

[smeagol]

quote:
mathematician's ¶: 3.14159265358979323846 26433832795028841971etc..

bodo as a mathematician I take objection to this, you've missed the 8243519 off the end accuracy very important don't you know

Computer scientist: pie is 4 (Intel inside)

[JMGS4]

as an engineer (real one, grubby fingers you know, not a b***y sparky) I object to it being called pie!!! Pies are nice to eat especialy with , pi is 3.1415926 etc..........
Where the cack did you guys go to skool?

[smeagol]

fair cop sorry

[adamb]

quote:

quote:
mathematician's ¶: 3.14159265358979323846 26433832795028841971etc..

bodo as a mathematician I take objection to this, you've missed the 8243519 off the end accuracy very important don't you know

Computer scientist: pie is 4 (Intel inside)

As someone who knows a little physics I think you'l find 39 d.p.'s is sufficient to calculate the circumference of the universe to a accuracy level equivilent to the diameter of a hydrogen attom so your extra places are quite simply redundant.

Sorry

[lrussell5]

yeah but it'd be nice if TVR used a few more decimal places when putting their cars together

[philshort]

any decimal places would be an improvement. They work in furlongs I beleive.

[mattjbatch]

quote:

quote:

quote:
mathematician's ¶: 3.14159265358979323846 26433832795028841971etc..

bodo as a mathematician I take objection to this, you've missed the 8243519 off the end accuracy very important don't you know

Computer scientist: pie is 4 (Intel inside)

As someone who knows a little physics I think you'l find 39 d.p.'s is sufficient to calculate the circumference of the universe to a accuracy level equivilent to the diameter of a hydrogen attom so your extra places are quite simply redundant.

Sorry

There's always a smartarse isn't there

[CarZee]

quote:There's always a smartarse isn't there

And it's not even me, today

[JMGS4]

quote:
any decimal places would be an improvement. They work in furlongs I beleive.

Nah, chains and roods it izzz my boyyzzzzz

[adamb]

Whilst were on the subject of smart arses I have a life ambition to understand quantum computing before I die. Not do anything with it just grasp the concept.

Can anyone explain to me how it works. The attached link loses me on paragraph 2.
www.cs.caltech.edu/~westside/quantum-intro.html

Bits can be 1 AND 0

Huh

>> Edited by adamb on Wednesday 10th July 15:00

[neil_cardiff]

Basicly it means that you will have to go and buy some headache tablets.

Go and have a beer instead, and ponder upon the marvel of your friendy barmaid.

And how the more you drink, the nicer she is.

There, you must be feeling better already.

[smeagol]

adam it appears to be using the same principle as expert systems. In that you build your system based upon the probablilities. A state can be both 0 and 1 depending upon the probability and signal given to it. eg in car terms: your car wont start: there are several factors which could cause the problem eg electrics (it either IS the electrics or not) so that state is set at 1 and 0 with probabilities of say 80% and 20%. Now depending on other information that probability changes eg plugs are wet increases 85-15 electricity etc.

By putting lots of these probability factors together the computer can feed in a set of facts and the computer can then dish out the possible causes and their relative merits (probability).

In the car example you eventually end up with a system which wil be better than the mechanic with the expert knowledge. THe computer takes all parts into consideration whereas a human will forget certain factors. (similar to mechanic trying out things in a certain order instaed of remembering that this,this and that mean mostliy the wotchmacallit is knackered)

Thats my understanding but of course I could be completely wrong BTW mathematicians use the Pi symbol and leave it as that in their caluculations. eg sin-1(1) = pi/2 in radians.

Hope that helps. (Do I qualify for the "get a life" competition)

[neil_cardiff]

yup

[adamb]

Still don't get it, I spent the last 10 years developing various systems from Dataware / Trading stuff to predictive modeling anti fraud stuff but at the end of the day black is black and white is white. Admittedly in many of the predicate logic stuff you can mix the two to get grey, but the basic blocks remain. This stuff seems do defy my understanding of the universe.

All the stuff you mentioned is also valid on standard (non quatum) computing, but thanks anyway.