Japan Broadcasting Corporation or Nippon Hōsō Kyōkai is a Japanese public broadcasting channel. The international version is NHK World Japan and it's an interesting channel with lots of documentaries about Japanese culture, crafts and technology, as well as news. Japan's Top Inventions is a series about the various inventions that originated in Japan. The program broadcast this evening was about how automatic door openers using PIR sensors replaced older types that used foot operated pressure switches. (I remember the novelty of coming across these for the first time in Dublin Airport in 1972. Did Woolworths have them too?)
