On Thu, 20 Dec 2018 16:28:58 -0000, trader_4 wrote:

On Thursday, December 20, 2018 at 8:45:58 AM UTC-5, William Gothberg wrote:
On Thu, 20 Dec 2018 04:27:41 -0000, Clare Snyder wrote:

On Wed, 19 Dec 2018 16:39:50 -0000, "William Gothberg" "William
wrote:

On Wed, 19 Dec 2018 16:34:11 -0000, whisky-dave wrote:

On Wednesday, 19 December 2018 16:21:43 UTC, Mark Lloyd wrote:
On 12/19/18 6:01 AM, William Gothberg wrote:

[snip]

They probably are fairly crude. I know they flicker, for example if I
use my cordless drill, the chuck appears to spin the wrong way under the
LED lighting.
I remember seeing that with a washing machine (under fluorescent
lights). As the tub was slowing down, the row of holes around the tub
would appear to reverse direction. Same thing with (spoked) wagon wheels
in movies.

You can also observe such things using a smartphone that has a high FPS rate for recodring movie.
I can see the labs lights flicker when I film at 240FPS standard 60 and everything seems fine.

Everybody seems to constantly cut corners. Lights should just be on, no flicker at all. ****ing annoying if you have decent eyesight, I can see the flicker from almost everyone's LED tail lights.


This is sounding more and more like our "engineer friend" who needs
to do his own tire repairs and alignments and clutch repairs.

Don't know who you're referring to, but what's wrong with striving for perfection?

There's a saying about that, "perfection is the enemy of good".
In this case that translates to it's a waste of time, money and
economically inefficient to fix things that aren't a problem.

It depends how far you take it. If I have a flickery light which gives me a headache, I'll alter the power supply to stop it doing so. If I have something which is noisy, I'll try to quieten it with lubrication or changing fans for quieter ones.