Things you always wanted to know the answer to [Vol. 2]
Discussion
lord trumpton said:
This little puzzler has always had me, well puzzled
3 Student flatmates go to buy a TV. They arrive at a repo shop and spot a TV in the window on sale for £30.00
They decide to buy it and each put in £10, pay the sales dude and leave.
Sales manager informs sales dude that the TV had just been reduced down to £25.00 and to go find the chaps and refund their fiver.
Sales dude takes out 5off £1.00 coins and sets off. He decides to pocket £2.00 and give each student a £1.00 coin back.
So, each student has now contributed £9.00. of which £8.33 has gone to the purchase of the TV, and £0.66 to the pocket of the salesman
£8.33 x 3 = £25.00
£0.66 x 3 = £2 sales dude pocket
£1 x 3 £3.00 (change returned to each of the 3)
Total = £30.00
Whats happened to the missing £1.00?
Each contribute £10.3 Student flatmates go to buy a TV. They arrive at a repo shop and spot a TV in the window on sale for £30.00
They decide to buy it and each put in £10, pay the sales dude and leave.
Sales manager informs sales dude that the TV had just been reduced down to £25.00 and to go find the chaps and refund their fiver.
Sales dude takes out 5off £1.00 coins and sets off. He decides to pocket £2.00 and give each student a £1.00 coin back.
So, each student has now contributed £9.00. of which £8.33 has gone to the purchase of the TV, and £0.66 to the pocket of the salesman
£8.33 x 3 = £25.00
£0.66 x 3 = £2 sales dude pocket
£1 x 3 £3.00 (change returned to each of the 3)
Total = £30.00
Whats happened to the missing £1.00?
They are then refunded £5 (collectively) which means they are due £1.66 each (£5/3)
They only see £1 each of their £1.66, and the remaining £0.66 (x3) equals £2 which goes into salemans pocket.
I've bolded the important omission from the above maths.
s p a c e m a n said:
Top fuel funny car type drag things, the 8000bhp ones.. how do they map the engine, or do they not work like that?
Was just browsing through youtube watching engine dynos/rolling road sessions and could see nothing over a 1000bhp ish.
I think its all worked out by formulas.Was just browsing through youtube watching engine dynos/rolling road sessions and could see nothing over a 1000bhp ish.
They don't really have an ECU in the conventional sense, instead they have timers that stagger the increase in fuel, activated by the driver opening the throttle. So when the car leaves the line its only using maybe half the power available and the clutch pack is slipping, as it progresses down the track the clutch pack gets locked up (again by timer IIRC) and the engine is fed more fuel.
It used to be by half track they'd actually be dieseling but apparently that isn't true any more, the ignition systems are much stronger now, ~1.2amp per spark
Its the crew chiefs job to figure out the timing of fuel & clutch, taking in to account tyres/track condition/temperature etc
Got one for ya. When you turn a radio off at the plug it keeps going for a bit, far enough. But when I came back to my radio this morning I turned it in using the radio on button, but not at the plug, and it still came on for a second. How? Where and why does it store the juice over night?
When I used to watch hospital programs years ago, people would always be told to stop using their phones as it would interfere with stuff. Nowadays I see people using them all the time on TV hospital programs.
What changed? Did the switch from analogue to digital mobiles stop the interference, or was it all b
ks that was eventually disproved?
What changed? Did the switch from analogue to digital mobiles stop the interference, or was it all b
ks that was eventually disproved?
ChemicalChaos said:
When I used to watch hospital programs years ago, people would always be told to stop using their phones as it would interfere with stuff. Nowadays I see people using them all the time on TV hospital programs.
What changed? Did the switch from analogue to digital mobiles stop the interference, or was it all bks that was eventually disproved?
I can hopefully provide something of an answer for you,What changed? Did the switch from analogue to digital mobiles stop the interference, or was it all b
ks that was eventually disproved?All medical devices I know of have screening in them. Older ones probably did not.
I'm not sure if it actually ever was an issue my feelings are it was more of a precaution but not entirely impossible to cause issues.
Pesty said:
ChemicalChaos said:
When I used to watch hospital programs years ago, people would always be told to stop using their phones as it would interfere with stuff. Nowadays I see people using them all the time on TV hospital programs.
What changed? Did the switch from analogue to digital mobiles stop the interference, or was it all bks that was eventually disproved?
I can hopefully provide something of an answer for you,What changed? Did the switch from analogue to digital mobiles stop the interference, or was it all b
ks that was eventually disproved?All medical devices I know of have screening in them. Older ones probably did not.
I'm not sure if it actually ever was an issue my feelings are it was more of a precaution but not entirely impossible to cause issues.
Could be although I'm sure you have heard interference on your computer when the mobile phone was about to ring.
I've found this.
It talks about different volume given On a syringe pump. If that was an inotrope or opiate it could cause a problem
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC273831...
It is Indian and I have no idea what equipment they were using. Pretty sure all recent infusion pumps are shielded in the uk market.
I've found this.
It talks about different volume given On a syringe pump. If that was an inotrope or opiate it could cause a problem
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC273831...
It is Indian and I have no idea what equipment they were using. Pretty sure all recent infusion pumps are shielded in the uk market.
Carthage said:
Single-track roads:
1. Why don't English ones have proper passing places?
2. Why don't they have nice black and white stripy posts to mark them?
3. Why do people go into any spaces on their right? So wrong.
4. Why do English people not know how to overtake/let people pass on a single-track road?
Not sure where you are referring to but a lot of these roads are ancient rights of way and obviously no body ever thought about the traffic we have now.1. Why don't English ones have proper passing places?
2. Why don't they have nice black and white stripy posts to mark them?
3. Why do people go into any spaces on their right? So wrong.
4. Why do English people not know how to overtake/let people pass on a single-track road?
You might like to try and take large pieces of machinery down roads like this. Instead of waiting in or opposite a wide bit, people normally wait at the pinch point. Another favorite is to wait in the field gateway I am clearly indicating into and very often has tyre scrub marks on the road where I've been going in and out all day.
Pesty said:
I can hopefully provide something of an answer for you,
All medical devices I know of have screening in them. Older ones probably did not.
I'm not sure if it actually ever was an issue my feelings are it was more of a precaution but not entirely impossible to cause issues.
Isn't there at least one hospital in London with mobile phone base station aerials on the roof?All medical devices I know of have screening in them. Older ones probably did not.
I'm not sure if it actually ever was an issue my feelings are it was more of a precaution but not entirely impossible to cause issues.
Carthage said:
Silent1 said:
Around here
1. Ours do
2. They have a post marking them, sometimes it's a blue one with passing place on it
3. The person pulls in who is on the side of the road of the passing place
4. You can't overtake on a single track road as it requires the assistance of the overtakee, slow traffic does pull over though.
Where's 'here'?1. Ours do
2. They have a post marking them, sometimes it's a blue one with passing place on it
3. The person pulls in who is on the side of the road of the passing place
4. You can't overtake on a single track road as it requires the assistance of the overtakee, slow traffic does pull over though.
2. Stripy wooden posts are cuter.
3. Agreed
4. Car in front indicates left, pulls in, car behind overtakes. Except in Gloucestershire where you can grow old and grey.
Was watching After the first 48 the other day (real life homicides followed through to conclusion-American if you're not familiar),girl was arrested for killing bloke,she was average size.Case comes before court 9mths to a year later,shes brought out into courtroom in cuffs but now shes the size of a semi-detached house.Are American prisons serving up mega burgers or something nowadays?
Thanks for the previous replies, that's one question answered!
Here's another:
Given that the engine and gearbox of a Hummer H1 are partly responsible for the enormous centre consol, why is this "spine" then carried on right through the interior? Its a bit farcical that an H1 will only seat 4 inside, when the back row could easily seat 4 abreast without the hump - under which there is only a propshaft, by that point
Here's another:
Given that the engine and gearbox of a Hummer H1 are partly responsible for the enormous centre consol, why is this "spine" then carried on right through the interior? Its a bit farcical that an H1 will only seat 4 inside, when the back row could easily seat 4 abreast without the hump - under which there is only a propshaft, by that point
ChemicalChaos said:
Thanks for the previous replies, that's one question answered!
Here's another:
Given that the engine and gearbox of a Hummer H1 are partly responsible for the enormous centre consol, why is this "spine" then carried on right through the interior? Its a bit farcical that an H1 will only seat 4 inside, when the back row could easily seat 4 abreast without the hump - under which there is only a propshaft, by that point
It's to protect the prop from bombs and sHere's another:
Given that the engine and gearbox of a Hummer H1 are partly responsible for the enormous centre consol, why is this "spine" then carried on right through the interior? Its a bit farcical that an H1 will only seat 4 inside, when the back row could easily seat 4 abreast without the hump - under which there is only a propshaft, by that point
t. 
You can never be too careful in downtown LA.
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