XPost: alt.home.repair, uk.d-i-y   
   From: daniel47@eternal-september.org   
      
   William Gothberg wrote on 20/12/2018 11:34 PM:   
   > On Thu, 20 Dec 2018 07:09:59 -0000, Daniel60   
   >  wrote:   
   >   
   >> Mark Lloyd wrote on 20/12/2018 3:21 AM:   
   >>> 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.   
   >>> ... and, in real life, the Mag wheels of some cars seem to be spinning   
   >> backwards, dependant on the speed at which the car is travelling!!   
   >   
   > In real life?  I assume you mean under streetlighting.  That effect   
   > can't occur with a steady lightsource such as the sun.   
      
   No, I'm sure I've noticed it in sunlight, as well.   
      
   And my 'real life' was to distinguish from the mentioned "wagon wheels   
   in movies"!   
   --   
   Daniel   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)