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tggzzz:

--- Quote from: magic on April 02, 2023, 09:56:06 am ---I have seen tickless clocks, where the seconds hand advances smoothly and silently like the others.

--- End quote ---

Except for Vetinari clocks. But you can have a digital Vetinari clock too :)

nctnico:

--- Quote from: langwadt on April 01, 2023, 03:51:37 pm ---
--- Quote from: tggzzz on April 01, 2023, 03:36:54 pm ---
--- Quote from: tom66 on April 01, 2023, 03:16:55 pm ---
--- Quote from: tggzzz on April 01, 2023, 03:14:48 pm ---
--- Quote from: RoGeorge on April 01, 2023, 02:59:04 pm ---1. I'm not sure if I perceive these benefits because I was born before wrist digital clocks were a thing, or if it has something to do with the analog representation being better than a numerical one?

--- End quote ---

If you want to see trends or need speedy comprehension and don't need much precision, then analogue displays are often better than digital displays.

Canonical examples:
* control panels where all needles should be pointing roughly at the same angle, and you need to quickly spot any that are "out of line".
* artifical horizons, where the changing angle is much more useful than a succession of numbers
--- End quote ---

Conversely, I prefer the digital speedometer that many cars offer now.  Especially because a speeding offence is defined as an absolute limit (while there is leeway in the UK, this is not uniform and not legally stipulated - 0.1 mph over *is* an offence).  But I'd agree analog readouts are better for most other things.

--- End quote ---

Check the permissible errors in the values a speedometer displays :) Precision != accuracy :)

--- End quote ---

afair -0/+10% and that has too account for the size of the wheels so it always show on the high side

--- End quote ---
Yes. A speedometer may never indicate too low. In my car the speed is consistently 8% too low up to 140km/h (on the dial which is about 130km/h for real). Above the error seems to get a little bit smaller.

magic:

--- Quote from: 2N3055 on April 02, 2023, 10:05:36 am ---For me it is digital clock all the way..
I intuitively know where I am in time based on numbers.

--- End quote ---
I wonder if you really do or if it's just Stockholm Syndrome?
How much time is it from 11:47 to 12:09? Surely you can do the math, but on analog you simply visualize the angle and it can be as meaningful as the number 22.

Of course for any sort of high precision you need the numbers, and digital provides them directly, so it wins there.

RoGeorge:

--- Quote from: magic on April 02, 2023, 09:56:06 am ---I have seen tickless clocks, where the seconds hand advances smoothly and silently like the others.

--- End quote ---

This one ticks, in fact it's quite clever, it has 2 stepper motors, one for the seconds indicator and one for the minutes indicator.  the minutes steps precisely 6 times to advance one minute, but the seconds and the minutes indicators have no common gears between them.  The hours indicator is driven by gears with the minutes indicator.

The clock has sensors to independently detect 12:00 for the minutes arm and for the seconds arm.  Therefore the alignment is always perfect for this particular design.  It's funny to observe them moving independently at power up.  ;D

There is a routine at power up, each arm seeks the 12:00 position and align themselves (the clock has internal optical sensors for 12:00), then the clock seeks for the signal of a DCF (from Germany) or a MSF (from UK) time radio-beacon to auto-position themselves at the current hour.  :o

Here's a 3 minutes video showing the PCB, the gears and the steppers dismantled:

themadhippy:
The digital clock haters would have a heart attack if they saw my kitchen clock

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