Things you always wanted to know the answer to [Vol. 4]

Things you always wanted to know the answer to [Vol. 4]

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V8mate

45,899 posts

189 months

Saturday 16th February 2019
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anonymous said:
[redacted]
Bloody nanny state!

glenrobbo

35,251 posts

150 months

Saturday 16th February 2019
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V8mate said:
Bloody nanny state!
That's a good name. wink

droopsnoot

11,933 posts

242 months

Saturday 16th February 2019
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SpeckledJim said:
V8mate said:
SpeckledJim said:
Off the back of that question, is it required that a child have a surname?

Or for that matter, any name at all?
Well a birth has to be registered by law, and I doubt that a blank entry in the name fields would be accepted.
Does it have to be ‘English’’?

Can my next son, instead of Judy as planned (no judgements please, it’s 2019), be “+ #”?

Pronounced Plus Hash.
https://xkcd.com/327/

S1KRR

12,548 posts

212 months

Saturday 16th February 2019
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How much fuel should I put in my car?


Obviously the most efficient, least wearing amount would be the absolute minimum to get to my destination (and a fuel station afterwards) But obviously that's not convenient. But if you fill it, you must be using some of that fuel to lug around the weight of 70+ litres.

Is half filling the best you can hope for? Or is there a sweet spot somewhere else?

V8mate

45,899 posts

189 months

Saturday 16th February 2019
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S1KRR said:
How much fuel should I put in my car?


Obviously the most efficient, least wearing amount would be the absolute minimum to get to my destination (and a fuel station afterwards) But obviously that's not convenient. But if you fill it, you must be using some of that fuel to lug around the weight of 70+ litres.

Is half filling the best you can hope for? Or is there a sweet spot somewhere else?
Depends whether you drive past your preferred petrol station on a regular journey or not. I reckon any weight issue would be negated by even driving a small distance out of your way.

AstonZagato

12,702 posts

210 months

Saturday 16th February 2019
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Following on from that, what is the optimal speed for a cross-continental journey?

Assume no speed limits.

So, a Bugatti Veyron would be able to do whatever speed it liked. But, given it empties its tank in 51 miles at its top speed, you'd have to stop rather often for fuel. Go too slowly and the slower speed would eat away at your time but you'd gain on fewer fuel stops.

Might be easier to work out on a Tesla where websites calculate these things.

SpeckledJim

31,608 posts

253 months

Saturday 16th February 2019
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AstonZagato said:
Following on from that, what is the optimal speed for a cross-continental journey?

Assume no speed limits.

So, a Bugatti Veyron would be able to do whatever speed it liked. But, given it empties its tank in 51 miles at its top speed, you'd have to stop rather often for fuel. Go too slowly and the slower speed would eat away at your time but you'd gain on fewer fuel stops.

Might be easier to work out on a Tesla where websites calculate these things.
Something like a TT TDi 2.0 at something like 120mph i suspect.

moneymakestheworldgoaround

4,079 posts

175 months

Saturday 16th February 2019
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AstonZagato said:
So, a Bugatti Veyron would be able to do whatever speed it liked. But, given it empties its tank in 51 miles at its top speed
51 miles in 11 minutes though.. laugh

Clockwork Cupcake

74,549 posts

272 months

Saturday 16th February 2019
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AstonZagato said:
Following on from that, what is the optimal speed for a cross-continental journey?

Assume no speed limits.

So, a Bugatti Veyron would be able to do whatever speed it liked. But, given it empties its tank in 51 miles at its top speed, you'd have to stop rather often for fuel. Go too slowly and the slower speed would eat away at your time but you'd gain on fewer fuel stops.

Might be easier to work out on a Tesla where websites calculate these things.
Not sure, but the current holder of the Cannonball (last time I looked anyway) was a big Merc with long range tanks fitted, since it was able to maintain a higher average speed due to less fuel stops.

Flibble

6,475 posts

181 months

Saturday 16th February 2019
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Couple of big tanks in the boot and like a good plan for a long journey in the least time.

Also a 70l tank is a little over 50kg full (closer to 60 for diesel) which is a pretty small proportion of a car that's presumably knocking on 2 tonnes.

Clockwork Cupcake

74,549 posts

272 months

Saturday 16th February 2019
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Flibble said:
Couple of big tanks in the boot and like a good plan for a long journey in the least time.
Indeed



See https://jalopnik.com/meet-the-guy-who-drove-across...


glazbagun

14,279 posts

197 months

Sunday 17th February 2019
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Which is more durable/resistant to decay- tooth enamel, or the artificial fillings they use today?

Flibble

6,475 posts

181 months

Monday 18th February 2019
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glazbagun said:
Which is more durable/resistant to decay- tooth enamel, or the artificial fillings they use today?
Enamel is not that resistant, but can remineralise if you don't damage it too badly, so it has limited self-repair. Also fluoride makes your teeth much less susceptible to decay via a chemical reaction with the enamel.

Artificial fillings obviously don't have that, but are less prone to acid damage in the first place. Also silver fillings are bactericidal to an extent due to their mercury and silver content.

So I guess fillings are more durable, but they're only really as durable as the tooth they're set in.

DocJock

8,357 posts

240 months

Monday 18th February 2019
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And as with most things, the weakest part is the joint between the two materials.

captain_cynic

11,998 posts

95 months

Monday 18th February 2019
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SpeckledJim said:
Does it have to be ‘English’’?

Can my next son, instead of Judy as planned (no judgements please, it’s 2019), be “+ #”?

Pronounced Plus Hash.
I think the rule is that it can't be offensive (or in any other way detrimental to the child). Special characters might require them to be written in plain English for computers (+ is an operator).

I think that "Robert') DROP TABLE users Smith" might not get through.

simoid said:
Presumably it’ll need to go into a compootah form somewhere? The French have a list of approved names eh
Not any more, I believe they got rid of that in the 90's and the year after the number 1 name for French boys was Kevin.

captain_cynic

11,998 posts

95 months

Monday 18th February 2019
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anonymous said:
[redacted]
I was trying to keep it simple.

A lot of programs will be required to filter out special characters from text fields as they will change the way the program interprets the data.

I.E your passport's MRZ or Machine Readable Zone can only handle alpha-numeric characters because special characters are used as part of the machine readable code. A lot of systems that are designed for automation are designed for alpha-numeric characters only. Not an accent like an umlaut or virgulilla are permitted.

Hence you also failed to get the Drop Tables joke. Drop Tables is a SQL command that deletes data.

P-Jay

10,565 posts

191 months

Monday 18th February 2019
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SpeckledJim said:
AstonZagato said:
Following on from that, what is the optimal speed for a cross-continental journey?

Assume no speed limits.

So, a Bugatti Veyron would be able to do whatever speed it liked. But, given it empties its tank in 51 miles at its top speed, you'd have to stop rather often for fuel. Go too slowly and the slower speed would eat away at your time but you'd gain on fewer fuel stops.

Might be easier to work out on a Tesla where websites calculate these things.
Something like a TT TDi 2.0 at something like 120mph i suspect.
I usually drive Cardiff to Morzine in the Alps every summer. It's about 850 miles and I'm a notorious over-thinker so I do have some data on this.

My Seat has a 70 litre tank and the same engine as that TT, although it doesn't all show on the gauge so for all intents and purposes it's 14 1/2 gallons. but It's bigger, heavier than the TT

For arguments sake let's forget the crossing and traffic etc, it's 99% motorway anyway.

@ 70 it will do 50mpg = total range 725 miles - 1 stop 728 mins + 20 min for stop. 748 mins total
@ 80 it will do 40mpg = total range 580 miles - 1 stop 637 mins + 20 mins for stop 677 mins total
@ 90 it will do 35mpg = total range 508 miles - 1 stop 566 mins + 20 mins for stop 586 mins total
@ 100 it will do 28mpg = total range 405 miles - 2 stops 510 mins + 40 mins for stops 550 mins total
@ 120 it will do 14mpg = total range 203 miles - 4 stops 424 mins + 80 mins for stops 504 mins total

I think the TT has a smaller tank

In reality, if you want to stay sane, safe, not bummed by OPEC or handed a massive fine by an angry French Police Officer then 85-90 is about right.




SpeckledJim

31,608 posts

253 months

Monday 18th February 2019
quotequote all
P-Jay said:
SpeckledJim said:
AstonZagato said:
Following on from that, what is the optimal speed for a cross-continental journey?

Assume no speed limits.

So, a Bugatti Veyron would be able to do whatever speed it liked. But, given it empties its tank in 51 miles at its top speed, you'd have to stop rather often for fuel. Go too slowly and the slower speed would eat away at your time but you'd gain on fewer fuel stops.

Might be easier to work out on a Tesla where websites calculate these things.
Something like a TT TDi 2.0 at something like 120mph i suspect.
I usually drive Cardiff to Morzine in the Alps every summer. It's about 850 miles and I'm a notorious over-thinker so I do have some data on this.

My Seat has a 70 litre tank and the same engine as that TT, although it doesn't all show on the gauge so for all intents and purposes it's 14 1/2 gallons. but It's bigger, heavier than the TT

For arguments sake let's forget the crossing and traffic etc, it's 99% motorway anyway.

@ 70 it will do 50mpg = total range 725 miles - 1 stop 728 mins + 20 min for stop. 748 mins total
@ 80 it will do 40mpg = total range 580 miles - 1 stop 637 mins + 20 mins for stop 677 mins total
@ 90 it will do 35mpg = total range 508 miles - 1 stop 566 mins + 20 mins for stop 586 mins total
@ 100 it will do 28mpg = total range 405 miles - 2 stops 510 mins + 40 mins for stops 550 mins total
@ 120 it will do 14mpg = total range 203 miles - 4 stops 424 mins + 80 mins for stops 504 mins total

I think the TT has a smaller tank

In reality, if you want to stay sane, safe, not bummed by OPEC or handed a massive fine by an angry French Police Officer then 85-90 is about right.
Yes, but the question was what's fastest, assuming no speed limits.

I think your numbers suggest driving faster is faster overall, and I'd suggest your estimated time taken for a fuel stop is a bit long.

Your reduction in fuel economy between 80 and 90 has to be larger than your reduction between 70 and 80 as the increase in drag is much larger.

TT might well have a smaller tank, I'm not sure but that sounds reasonable. It also has a smaller frontal area that should help economy.

Jonboy_t

5,038 posts

183 months

Tuesday 19th February 2019
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Theoretically, would it be possible to completely domesticate a Jaguar? As in, have it live in your house and not eat you and stuff?

Dr Jekyll

23,820 posts

261 months

Tuesday 19th February 2019
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Jonboy_t said:
Theoretically, would it be possible to completely domesticate a Jaguar? As in, have it live in your house and not eat you and stuff?
Doubt it. Even domestic cats aren't particularly domesticated, not compared with dogs
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