Things you always wanted to know the answer to [Vol. 5]

Things you always wanted to know the answer to [Vol. 5]

Author
Discussion

hidetheelephants

24,805 posts

194 months

Friday 10th May
quotequote all
eldar said:
The Honda V4/8 was partly due to the racing regulation restricting the number of cylinders to 4, so an attempt to get some V8 advantages.
Even Honda stuck with concentric valves.

Halmyre

11,255 posts

140 months

Friday 10th May
quotequote all
Alickadoo said:
I have radios in various rooms in my house.

Some are set to FM, some AM, some DAB, some Long wave and so on. You get the picture, I am sure.

The eight o'clock pips have just gone on the BBC. Which radio is giving the most accurate time?
What is your speed and altitude?

Alickadoo

1,764 posts

24 months

Friday 10th May
quotequote all
Halmyre said:
What is your speed and altitude?
Zero MPH and zero knots. Approx 30feet/10 meters above MHWS.

48k

13,223 posts

149 months

Friday 10th May
quotequote all
Alickadoo said:
I have radios in various rooms in my house.

Some are set to FM, some AM, some DAB, some Long wave and so on. You get the picture, I am sure.

The eight o'clock pips have just gone on the BBC. Which radio is giving the most accurate time?
Theoretically the FM, AM and LW will be closest to the correct time, assuming all other things being equal (eg. FM, AM, LW and DAB transmitters all receiving the same signal at the same time).

In my house the "nearest real time" to "farthest from real time" order is :

Analogue Radio
Radio via Sky satellite
Radio via Freesat
DAB
Computer / internet

mko9

2,414 posts

213 months

Friday 10th May
quotequote all
Halmyre said:
Alickadoo said:
I have radios in various rooms in my house.

Some are set to FM, some AM, some DAB, some Long wave and so on. You get the picture, I am sure.

The eight o'clock pips have just gone on the BBC. Which radio is giving the most accurate time?
What is your speed and altitude?
Were you on a treadmill at the time?

Granadier

525 posts

28 months

Friday 10th May
quotequote all
Clockwork Cupcake said:
As an aside, I believe that some Anglican Churches now use recordings of church bells, rather than using their actual church bells, when either their bells need expensive renovation and/or they have insufficient bell ringers.
Are church bells automated/mechanised in some way these days or do they literally have people pulling on ropes every time they're rung? I mean when you hear a proper 'tune' at service times. I assume a simple ring to mark the hour or quarter-hour is just driven by a clock. I stayed in Canterbury recently and heard quite a lot of bells!

captain_cynic

12,181 posts

96 months

Friday 10th May
quotequote all
Granadier said:
Are church bells automated/mechanised in some way these days or do they literally have people pulling on ropes every time they're rung? I mean when you hear a proper 'tune' at service times. I assume a simple ring to mark the hour or quarter-hour is just driven by a clock. I stayed in Canterbury recently and heard quite a lot of bells!
Round my parts churches are equal opportunity employers. One such church employed a double amputee to ring the bell, having no arms he couldn't pull on the ropes but he would throw his head at the bell and could do so well enough to make the right tones. Unfortunately one day he fell down the shaft, when the police arrived all the priest could say is "I don't know his name, but his face rings a bell".

ruggedscotty

5,639 posts

210 months

Friday 10th May
quotequote all
captain_cynic said:
Granadier said:
Are church bells automated/mechanised in some way these days or do they literally have people pulling on ropes every time they're rung? I mean when you hear a proper 'tune' at service times. I assume a simple ring to mark the hour or quarter-hour is just driven by a clock. I stayed in Canterbury recently and heard quite a lot of bells!
Round my parts churches are equal opportunity employers. One such church employed a double amputee to ring the bell, having no arms he couldn't pull on the ropes but he would throw his head at the bell and could do so well enough to make the right tones. Unfortunately one day he fell down the shaft, when the police arrived all the priest could say is "I don't know his name, but his face rings a bell".
im pulling faces here at that joke.....

Nova Gyna

1,190 posts

27 months

Friday 10th May
quotequote all
ruggedscotty said:
captain_cynic said:
Granadier said:
Are church bells automated/mechanised in some way these days or do they literally have people pulling on ropes every time they're rung? I mean when you hear a proper 'tune' at service times. I assume a simple ring to mark the hour or quarter-hour is just driven by a clock. I stayed in Canterbury recently and heard quite a lot of bells!
Round my parts churches are equal opportunity employers. One such church employed a double amputee to ring the bell, having no arms he couldn't pull on the ropes but he would throw his head at the bell and could do so well enough to make the right tones. Unfortunately one day he fell down the shaft, when the police arrived all the priest could say is "I don't know his name, but his face rings a bell".
im pulling faces here at that joke.....
Bell’s palsy?

Clockwork Cupcake

74,826 posts

273 months

Friday 10th May
quotequote all
Halmyre said:
What is your speed and altitude?
We have clearance, Clarence. What's our vector, Victor?


Clockwork Cupcake

74,826 posts

273 months

Friday 10th May
quotequote all
Nova Gyna said:
Bell’s palsy?
It's somewhat ironic and cruel that people who suffer from it cannot say it.

bodhi

10,645 posts

230 months

Friday 10th May
quotequote all
Clockwork Cupcake said:
It's somewhat ironic and cruel that people who suffer from it cannot say it.
Similar with stutter, stammer and lisp.

Still not as cruel as whoever came up with the name dyslexia....

Strangely Brown

10,132 posts

232 months

Friday 10th May
quotequote all
48k said:
Theoretically the FM, AM and LW will be closest to the correct time, assuming all other things being equal (eg. FM, AM, LW and DAB transmitters all receiving the same signal at the same time).

In my house the "nearest real time" to "farthest from real time" order is :

Analogue Radio
Radio via Sky satellite
Radio via Freesat
DAB
Computer / internet
???

In my house the computer is easily the "nearest to real time". Timekeeping with ntp is probably about as close as anyone needs outside of some specialised fields.

Analogue radio is next followed by TV and the farthest being DAB.
The current time is...

audi321

5,236 posts

214 months

Friday 10th May
quotequote all
Strangely Brown said:
48k said:
Theoretically the FM, AM and LW will be closest to the correct time, assuming all other things being equal (eg. FM, AM, LW and DAB transmitters all receiving the same signal at the same time).

In my house the "nearest real time" to "farthest from real time" order is :

Analogue Radio
Radio via Sky satellite
Radio via Freesat
DAB
Computer / internet
???

In my house the computer is easily the "nearest to real time". Timekeeping with ntp is probably about as close as anyone needs outside of some specialised fields.

Analogue radio is next followed by TV and the farthest being DAB.
The current time is...
Unless you’re on the phone to the speaking clock how do you know which is the most accurate? Or accurist if sponsored by……(one for the oldies)

Strangely Brown

10,132 posts

232 months

Friday 10th May
quotequote all
audi321 said:
Unless you’re on the phone to the speaking clock how do you know which is the most accurate? Or accurist if sponsored by……(one for the oldies)
When setting the clocks/watches in the house (GMT<-->BST) I usually use one as local source for the others. Since my phone is usually the most accurate (currently 0.084 seconds behind) I use that to set the others or check as required. Obviously I have no control over the TV/Radio clocks but it is easy enough to see when one clicks over to the next minute before/after any chosen reference clock.

If a clock or watch is not going to tell the time accurately (to within a couple of minutes) then what is the point of having it?

deadtom

2,572 posts

166 months

Friday 10th May
quotequote all
Strangely Brown said:
???

In my house the computer is easily the "nearest to real time". Timekeeping with ntp is probably about as close as anyone needs outside of some specialised fields.
I think they mean listening to the radio via their computer

48k

13,223 posts

149 months

Friday 10th May
quotequote all
Strangely Brown said:
48k said:
Theoretically the FM, AM and LW will be closest to the correct time, assuming all other things being equal (eg. FM, AM, LW and DAB transmitters all receiving the same signal at the same time).

In my house the "nearest real time" to "farthest from real time" order is :

Analogue Radio
Radio via Sky satellite
Radio via Freesat
DAB
Computer / internet
???

In my house the computer is easily the "nearest to real time". Timekeeping with ntp is probably about as close as anyone needs outside of some specialised fields.

Analogue radio is next followed by TV and the farthest being DAB.
The current time is...
You're not reading the question / understanding the context.

We're not talking about NTP or how accurate a computer is, we're talking about listening to pips on a radio programme.

When I listen to a radio programme stream via computer, it's easily the most "behind" of all of the above.

audi321

5,236 posts

214 months

Friday 10th May
quotequote all
Strangely Brown said:
audi321 said:
Unless you’re on the phone to the speaking clock how do you know which is the most accurate? Or accurist if sponsored by……(one for the oldies)
Since my phone is usually the most accurate (currently 0.084 seconds behind)
When compared to what though...........What I'm trying to get at is how you know that your phone is most accurate. Someone else has said the internet is the least accurate of all the sources, yet surely your phone is getting the time from the internet, and you are saying it's the most accurate.

bodhi

10,645 posts

230 months

Friday 10th May
quotequote all
audi321 said:
When compared to what though...........What I'm trying to get at is how you know that your phone is most accurate. Someone else has said the internet is the least accurate of all the sources, yet surely your phone is getting the time from the internet, and you are saying it's the most accurate.
Two different things - the clock on your phone syncs from a central server and is basically about as accurate as you can get. Internet radio streams normally involved a delay, so when the 8 o clock news comes on Internet radio, it's usually a couple of minutes behind.

WrekinCrew

4,636 posts

151 months

Friday 10th May
quotequote all
Surely whichever pips you hear first are the most accurate (ie the least transmission / encoding / decoding delay).