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Heavy rain, thunder, and computers

One of my friends said  several power supplier parts of the servers that he administrates has been damaged by a electric surge, caused by thunders in Kyoto the day before yesterday.
Indeed, the climate around here was very bad.
Streams were flooded with heavy rain, trains had been stopped for hours, and short-term electric outage occurred, I've heard.
 I might be lucky that my computers were not damaged at all because I was out and pulled off their electric cables  from the outlets.

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