There seems to be no foreseeable standardisation of electricity worldwide - despite the obvious cost savings that would produce in producing everything from turbines to appliances in the one standard.

Smart switchable power supplies in domestic appliances have managed to cope with the different countries' power supplies, however we all still know how the fast-flicker of electric lighting involves adjusting shutter-speed of video shooting.

The waveform of 230 volt, 50 Hz compared with 110 V, 60 Hz.

Frame rates for TV and video have traditionally corresponded to multiples of the AC cycle and 60p is often cited as an ideal frame-rate, for smoothness - but as one of the majority who lives in a 50Hz country, I'd like to see a future standard of 100fps video one day.

http://www.quantumbalancing.com/worldelectricity/electricityif.htm http://en.wikipedia.org/wiki/Utility_frequency