Help 17cm....

[Lazarus]

guys,

brain dead this morning.

If I have a circle with circumference 17cm.

what would be the diameter?

alternatively - what size of Exhaust clamp is required for a Yamaha Fazer 2003 600 cc (standard exhaust)

answer to either question wins an erection to the stated size

 

[Chilly]

area = pi*r^2
circ = pi*dia

do it yourself

 

[old.Tohtori]

Now i know men exaggarate but come on.

I dunno, quick google told me; C = π x Diameter

 

[Chilly]

Now i know men exaggarate but come on.

I dunno, quick google told me; C = π x Diameter

You had to GOOGLE for that? Retard!

 

[old.Tohtori]

You had to GOOGLE for that? Retard!

Haven't had need for that formula in about, oh, 15 years so yeah!

How's the teenager life?

 

[Scouse]

You had to GOOGLE for that? Retard!

It's all about this Chilly

 

[DaGaffer]

Now i know men exaggarate but come on.

I dunno, quick google told me; C = π x Diameter

I can't believe you had to look that up. What's that vote in OT about being a retard?

And the answer is a diameter of 5.411cm

 

[Chilly]

It's all about this Chilly

But he's at least my age, so that doesnt even count.

 

[tris-]

I didnt know it off by heart either and I studied Maths for 2 years during my degree which ive only just finished.
It doesnt make you stupid if you dont remember things, it means your memory is poor and things become detached when you dont need to use them

 

[Lazarus]

cheers guys - 17cm erection heading to various places. just need to get rid of the smell of TdC from it first

 

[DaGaffer]

I didnt know it off by heart either and I studied Maths for 2 years during my degree which ive only just finished.
It doesnt make you stupid if you dont remember things, it means your memory is poor and things become detached when you dont need to use them

I don't consider myself particularly good at maths but I was a design engineer in the dim and distant and this is pretty basic stuff; maybe its just the way my brain works but I'm amazed anyone could forget something as fundamental as this.

 

[old.Tohtori]

I didnt know it off by heart either and I studied Maths for 2 years during my degree which ive only just finished.
It doesnt make you stupid if you dont remember things, it means your memory is poor and things become detached when you dont need to use them

Selective memory where useless stuff is put on the backburner.

I'm betting there's a lot of things people don't remember from 15 years back, which i could make a presentation about

Just haven't had a need for math formulas etc in ages.

Could DaGaffer, for example, list the secondary and primary weapons of the ships in starcontrol?

 

[tris-]

I don't consider myself particularly good at maths but I was a design engineer in the dim and distant and this is pretty basic stuff; maybe its just the way my brain works but I'm amazed anyone could forget something as fundamental as this.

Well i dont need to know it, use it or care about it. I needed it to pass exams, you needed it for a job so it probably is going to be engrained in there due to memory pathways and all that shite.

It doesnt make you stupid to forget things though, thats all my point is . All sorts of things are 'fundamental' but you dont need to remember most of them unless you need it for work or study. how many average joes will remember fundamentals like newtons three laws, or thermodynamics?

 

[old.Tohtori]

how many average joes will remember fundamentals like newtons three laws, or thermodynamics?

Or Asimovs three laws of robotics?

 

[DaGaffer]

Well i dont need to know it, use it or care about it. I needed it to pass exams, you needed it for a job so it probably is going to be engrained in there due to memory pathways and all that shite.

It doesnt make you stupid to forget things though, thats all my point is . All sorts of things are 'fundamental' but you dont need to remember most of them unless you need it for work or study. how many average joes will remember fundamentals like newtons three laws, or thermodynamics?

Actually I think its more down to the fact that I routinely make the effort to do basic maths without the aid of a calculator; long-hand or in my head. I was up at the Bushmills distillery in Northern Ireland the other week, and as we did the tour we were taken into one of the barrel storage areas; I worked out the retail value of the whiskey in those barrels in my head once I'd asked the guide how many bottles to a barrel. The guide (a 20 year old Trinity student) was genuinely amazed by this and asked her boss to verify it. I was out by about £100K on £21M. Kids these days can't even do their times tables in their head. Calculators have a lot to answer for.

 

[TdC]

Kids these days can't even do their times tables in their head. Calculators have a lot to answer for.

and computers. calc's have stolen my ability to do sums in my head, and pc's have stolen my ability to write with any kind of neatness or line following.

recently I was over at my aunts for her birthday, and I'd topped up the car on the way. being a man, I worked out my average mileage to a roundabout figure in my head. My aunt didn't agree, and worked out the division to prove me wrong by about 15% on a scrap of paper before I could even get my phone out of my pocket to start the calculator

 

[old.Tohtori]

Actually I think its more down to the fact that I routinely make the effort to do basic maths without the aid of a calculator; long-hand or in my head. I was up at the Bushmills distillery in Northern Ireland the other week, and as we did the tour we were taken into one of the barrel storage areas; I worked out the retail value of the whiskey in those barrels in my head once I'd asked the guide how many bottles to a barrel. The guide (a 20 year old Trinity student) was genuinely amazed by this and asked her boss to verify it. I was out by about £100K on £21M. Kids these days can't even do their times tables in their head. Calculators have a lot to answer for.

I calculate stuff in my head every single time it's humanly possible, count grocery prices to the dot etc. Even have fun in the bus by doing some "double up" calculations, or the...0+1=1, 1+1=2, 2+1=3 thing...forget the name.

Just that i haven't had the need to find the circumstance.

You needed it for something. Work being a BIG contributor to it,

If you hadn't needed it for anything for the past 15 years, you wouldn't just "hop to it" either.

You can't say "you're stupid" for not remembering one formula.

 

[DaGaffer]

If you hadn't needed it for anything for the past 15 years, you wouldn't just "hop to it" either.

I genuinely haven't needed to work out anything using Π for at least 20 years. I can still remember the basic formulas though. I could probably still do stuff like sines, cosines and tangents if I was really pushed, and basic physics stuff as well. My short-term memory is rubbish, but once its in, it tends to stick.

 

[old.Tohtori]

I genuinely haven't needed to work out anything using Π for at least 20 years. I can still remember the basic formulas though. I could probably still do stuff like sines, cosines and tangents if I was really pushed, and basic physics stuff as well. My short-term memory is rubbish, but once its in, it tends to stick.

Fair enough.

You most likely did train it more and used it more to begin with.

I may have had some calculations to do with it in basic school, but that's about it, if not calculating random occasions along 20 years where i might have needed to look it up.

But i do hope you see my point; not knowing one thing doesn't make you dumb as we all need different things.

It CAN ofcourse make you wonder, as it's so normal for you.

 

[tris-]

Calculators have a lot to answer for.

I also do mental arithmatic, but I dont need to know the areas and volumes of shapes for most of my day to day shenanigans. I think it is true though, the more youve had to know something the more liekly it is you will remember it. I know sections and regulations of legislation that I havent looked at for 2 years, but I remember it because i had to use it often.

 

[Chilly]

Fair enough.

You most likely did train it more and used it more to begin with.

I may have had some calculations to do with it in basic school, but that's about it, if not calculating random occasions along 20 years where i might have needed to look it up.

But i do hope you see my point; not knowing one thing doesn't make you dumb as we all need different things.

It CAN ofcourse make you wonder, as it's so normal for you.

Bollocks I say. If you cant remember your basic geometry you sucked at school. It was drilled into me when I was 9 or 10 and I've never needed to look most of it up since.

 

[old.Tohtori]

Bollocks I say. If you cant remember your basic geometry you sucked at school. It was drilled into me when I was 9 or 10 and I've never needed to look most of it up since.

lol retard doesn't remember all!

 

[Dark Orb Choir]

It was drilled into me when I was 9 or 10

ChildLine and Abuse Registry


ring now, do not delay

 

[Chilly]

croiky!

 

[ECA]

You don't even have to do the maths anymore.


<3 wolframalpha

- Wolfram|Alpha

 

[Bugz]

Actually I think its more down to the fact that I routinely make the effort to do basic maths without the aid of a calculator; long-hand or in my head. I was up at the Bushmills distillery in Northern Ireland the other week, and as we did the tour we were taken into one of the barrel storage areas; I worked out the retail value of the whiskey in those barrels in my head once I'd asked the guide how many bottles to a barrel. The guide (a 20 year old Trinity student) was genuinely amazed by this and asked her boss to verify it. I was out by about £100K on £21M. Kids these days can't even do their times tables in their head. Calculators have a lot to answer for.

If technology and advancement has presented us with a far more accurate & quicker approach of handling numbers then why is it so essential to be 'uber great' at mental arithmetic and being able to recall formulas off the spot?

That's a lovely story you told us there but if I told you I could whisk out a calculator and get an exact answer quicker than you could get an estimate, would that my approach any less valid (infact more valid - as you only estimated).

Computers & calculators are so common-place now-a-days that requiring people to be good at remembering and 'estimating' certain techniques isn't so essential.

 

[ECA]

If technology and advancement has presented us with a far more accurate & quicker approach of handling numbers then why is it so essential to be 'uber great' at mental arithmetic and being able to recall formulas off the spot?

That's a lovely story you told us there but if I told you I could whisk out a calculator and get an exact answer quicker than you could get an estimate, would that my approach any less valid (infact more valid - as you only estimated).

Computers & calculators are so common-place now-a-days that requiring people to be good at remembering and 'estimating' certain techniques isn't so essential.

Being able to understand things mentally rather than needing assistance lends itself to creation and invention.

If you don't understand this just kill the human race off now.

 

[Bugz]

Understanding and calculating are two very different things.

 

[taB]

If technology and advancement has presented us with a far more accurate & quicker approach of handling numbers then why is it so essential to be 'uber great' at mental arithmetic and being able to recall formulas off the spot?

That's a lovely story you told us there but if I told you I could whisk out a calculator and get an exact answer quicker than you could get an estimate, would that my approach any less valid (infact more valid - as you only estimated).

Computers & calculators are so common-place now-a-days that requiring people to be good at remembering and 'estimating' certain techniques isn't so essential.

For me mental arithmatic helps with lateral thinking and applications of the formulae we are presented with at school and use on our calculators / computers. Knowing how and why it works can be very beneficial. I meet many youngsters who are unable to apply their GCSE maths knowledge to anything other than very narrow situations as they have been trained to answer specific questions rather than having the tools they are given explained to them.

My Dad puts me to shame though, how the flip he does square roots and the like in his head I have no idea.

 

[Bugz]

You'd be better off approaching lateral thinking with problem solving exercises than mental arithmetic.

In fact, I can not see any benefit for lateral thinking in doing mental arithmetic. Lateral thinking is concerned with thinking outside of the book; breaking regular patterns of thinking and assessing different approaches. Mental arithmetic is using an algorithmic process to calculate basic numerical processes.

Besides, after delving past Maths A2 into F.Maths A2 mental arithmetic was never ever used. Accuracy becomes very important and calculators thus become essential.