XPost: alt.home.repair, uk.d-i-y   
   From: Gothberg"@internet.co.is   
      
   On Wed, 19 Dec 2018 23:53:42 -0000, Rod Speed  wrote:   
      
   >   
   >   
   > "William Gothberg" <"William Gothberg"@internet.co.is> wrote in message   
   > news:op.zt920ry6o5piw3@desktop-ga2mpl8.lan...   
   >> On Wed, 19 Dec 2018 16:21:41 -0000, 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.   
   >>   
   >> It looks absolutely ridiculous with modern cars with LED headlights in   
   >> films.  How hard can it be to put a smoothing capacitor on the output of   
   >> the power supply?   
   >   
   > No point when the only thing that has a problem is videos.   
   >   
   > You don't even see a problem with dashcams.   
      
   You should.  Surely they operate in a similar way to movie cameras?   
      
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