Medical uses began within a year of the discovery of high energy electromagnetic radiation.
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It has even been a source of fear - some of it sound, most of it decidedly not. Not everyone, however, has embraced each new iteration of radio wave technology with joy. Without it, not only would we not have radio disseminating information and creative expressions, we would also not have television, X-ray machines, radiation therapy, microwave ovens, cellphones, wireless internet. It provides the basis for all modern electric technology. In the world of physics, explaining how electricity, magnetism, light and electromagnetic radiation relate to each other is right up there with Newton’s universal law of gravitation, Einstein’s theory of relativity and quantum theory. It seemed as if Prof Jack’s dream was becoming a reality.Ĭertainly, the discovery of electromagnetic radiation - of which, radio waves are a subset - and figuring out ways to use it, has been one of the top scientific advances of the past 400 years. By the end of 1927, more than 30,000 New Zealand homes had radios. Radio stations were also set up in Christchurch, Wellington and Auckland. Prof Jack then helped establish what is now Radio Dunedin. That first programme, heard as far away as Auckland, was followed by a twice-weekly mix of announcements, gramophone recordings and live music. Through radio "the whole life of the community will be broadened and educated by being brought into more effective touch with the life of the whole world", he said. The professor’s vision of what he was hoping to create was clear and passionate. Just over a year later, on the evening of November 17, the Scottish-born physicist known as Bobby Jack, with the help of his soon-to-be wife Isabella Manson, matron of Knox College, broadcast New Zealand’s first radio programme, from the university’s clocktower building. The first useful radio transmitters and receivers, courtesy of Guglielmo Marconi, came a decade later, leading to the world’s first radio programme broadcast, on August 31, 1920, in Detroit, in the United States.
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IMAGE: ODT FILESRadio waves had only been conclusively identified by Heinrich Hertz 35 years previously. The University of Otago where he conducted radio broadcasts beginning inġ921. References Prof Robert Jack’s cutting-edge work on radio wave technology at Illustrates the novelty of radio broadcasts at the time. The headline on this Otago Witness article, published on January 3, 1922, New Zealand was at the forefront of that significant shift, thanks to University of Otago physicist Prof Robert Jack. In a similar vein, this week, 100 years ago, the transformative power of radio waves was being extolled by enthusiasts of that era’s cutting-edge technology, wireless telegraphy, aka the radio. You’ll be able to do almost anything you can imagine," Zuckerberg says.
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"It’s going to unlock a lot of amazing new experiences. A fortnight ago, the founder of Facebook unveiled the metaverse - a 5G-dependent, virtual reality-enabled future in which we will work and play through avatars, digital representations of ourselves. It will lift New Zealand’s productivity, improve the natural environment and enhance the lives of New Zealanders, a Ministry for Business, Innovation and Employment spokesperson says.Īnd let’s not forget Mark Zuckerberg. PHOTO: LINDA ROBERTSONIt will hugely help Dunedin’s ambition to become the epicentre of a $1 billion, New Zealand, video game development industry, Tim Ponting, director of the Centre of Digital Excellence (Code) says. Programme broadcast, on display at Toitu Otago Settlers’ Museum.
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The transmitter used by Prof Robert Jack in New Zealand’s first radio