Because Japan bought generators after World War II from the US and Germany, it has the unusual situation of hosting 50Hz and 60Hz current in the same country. Europe as a whole used the German standard as part of the overall European economic unification and rebuilding projects in the 1950s. Much of Europe's electrical infrastructure was destroyed in World War II. It's more efficient to transmit electricity at a higher voltage, but not enough more that it's worth retrofitting millions of existing appliances. Many other countries use 220 or 240 volts and 50Hz, which was promoted by German firms after World War II. North America tends to use 110- or 120-volt lines with electricity running at 60Hz, which was promoted by Tesla, Westinghouse, and eventually General Electric in the US. At the very least, you're probably going to need a plug adapter. Advances in multi-voltage gadgetry have made it much easier to travel with your electronics, but there's still some difference between electrical systems around the world. One of the downsides of being a tech-focused traveler is figuring out how to plug everything in. How to Set Up Two-Factor Authentication.How to Record the Screen on Your Windows PC or Mac.How to Convert YouTube Videos to MP3 Files.How to Save Money on Your Cell Phone Bill.How to Free Up Space on Your iPhone or iPad.How to Block Robotexts and Spam Messages.
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