If you were to ask me to recollect the meaning of a "long dash following ten seconds of silence," I would be forced to admit to at least two phrasal connotations:
(i) An uncomfortable memory of a narrow escape from a third-grade spelling bee; and
(ii) The NRC's time signal, which is 75 years young today.
Heard every day on CBC radio, that annoying beeeeeep at end of ten seconds of dead air is the official signal that lunch is over in Toronto, lunch is just beginning in Winnipeg, and it's time to get to yoga in Vancouver. In more technical terms, it denotes exactly on-the-hour time across Canada.
Three-quarters of a century is a long time to be dashing it out every day, but hey, that 45-second program has become Canada's longest-running radio broadcast. And that's a far longer run than my own schoolroom breakaway from the horrors of spelling interrogation. To this day I wonder, is it ukulele or ukelele?
This is such a cool development in acoustics... A team of researchers have developed a visual microphone algorithm that picks up audio by looking for microscopic vibrations in video footage. The technique allowed researchers to recover speech by analyzing the tiny vibrations of a potato chip bag from 15 feet away — with a video camera watching through soundproof glass. It's good enough to capture singing from a bag of potato chips, and musical tones from a potted plant.
A team of four University of Waterloo engineering students have recently invented a suitcase with sensors that can be tracked with a smartphone.
They call it 'casesensitive'. Not only can you know the location of your luggage at any given time, but if somebody has opened it, it will tell you when and where that happened.
I can’t imagine a finer greeting than: “Hello. I bring tidings of affirmation and great joy. Your lifetime of work has led to this. We found the proof.”
Watch the joy of Andrei Linde as he is informed of a discovery that confirms his inflationary universe theory. Years from now, you may not remember what is said here, or even what is done, but I bet you will never forget the look on his face and how it made you feel.