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    Silence of Canadian Cities: COVID19 Lockdown and Seismic Vibrations

    Absolutely. And for this study, I selected cities that had a seismic station nearby to get a good measure of the reduction in this near-continuous activity. In 5 out of 6 cities, the seismic noise dipped.
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    Silence of Canadian Cities: COVID19 Lockdown and Seismic Vibrations

    Thanks. I do not have the data of how traffic reduced during the lockdown. But usually noise about 1Hz is classified as noise from human activities. I have provided a baseline, ie ground vibrations before the lockdown to get a measure of natural + human made seismic vibrations prior to the...
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    Silence of Canadian Cities: COVID19 Lockdown and Seismic Vibrations

    On 11 March 2020, the World Health Organization (WHO) declared Coronavirus disease (COVID-19) as a pandemic. By then it had spread to at least 110 countries. The announcement made by WHO had a cascading effect. Cities, territories, and countries around the world ended up declaring states of...
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    How does Quadruple Pendulum isolate LIGO from Seismic Vibrations?

    Thanks. We now have the video available based on the presentation we gave at the Ontario Science Centre. It can be viewed at:
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    How does Quadruple Pendulum isolate LIGO from Seismic Vibrations?

    On 22 May 2019, we gave a presentation on our project: How does Quadruple Pendulum isolate LIGO from Seismic Vibrations? at the meeting of the Royal Astronomical Society of Canada -Toronto at the Ontario Science Centre. The video of the presentation: which show the pendulum in action, and...
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    How does Quadruple Pendulum isolate LIGO from Seismic Vibrations?

    Thanks. At this moment, we do not have any videos. But we will record them once we run this experiment again.
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    How does Quadruple Pendulum isolate LIGO from Seismic Vibrations?

    On 28 November 2018, a lecture was given by Dr. Rainer Weiss (2017 Nobel Prize Winner for Physics) at the Ontario Science Centre, Toronto. The lecture was about his work with the Laser Interferometer Gravitational-Wave Observatory (LIGO). In his lecture talked about quadruple pendulums or...
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