does the 50 vs 60 cycles per second power thing also dictate the 50fps vs 60fps framerates difference between the UK and the US?,(reply>), No , because then how do youexplain 120 and 240 hertz TVs, the frequency of your energy in the frequency of your devices have nothing to do with each other, just like you can step down or step up a voltage you can change the frequency add a different voltage within the device,(reply>), +Kit Vitae Multisync monitors syncing at 72Hz usually also sync at 75Hz.,(reply>), Tom has a video (it's about smartphone video),(reply>), @Serval Spots ooh, i've not noticed that, though i've noticed onionskinning when i skip through frames, which.. i think is a very closely related thing?<br><br>@Nicole K​ yes! plugging an older mains clock into a different frequency electricity makes it run fast or slow, right?,(reply>), This frequency is (was) also exploited by mains-powered analogue clocks.