Accurate time with light and designing the NBN
A new, cheaper way to deliver accurate time across Australia: instead of using hydrogen maser clocks costing hundreds of thousands of dollars we can bounce signals through the national’s optical fibre network according to physics leaders speaking today and tomorrow.
Also today at the national physics congress in Sydney, meet the man whose job it is to figure out how to build the NBN.
And hear about the magic of thermal plasmas, from safer arc welding to saving the ozone layer.
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