One of sports greatest scientific mysteries has been solved, sort of. Two University of Northern British Columbia physicists have explained the centuries-old question of why a curling stone curls, or moves laterally, in a counter-intuitive direction.
The solution – published in the current issue of the Canadian Journal of Physics – isnt an elegant equation of the kind mathematicians adore, say the scientists, but rather one that involved a lot of experimental sweeping. The explanation, nonetheless, could spark controversy at rinks – and even result in a new super-curl shot. "If you turn a glass over, spin it and slide it down a table it curls in the opposite way compared to a curling stone," says Dr. Mark Shegelski, an NSERC-funded UNBC theoretical physicist describing his post-game barroom demonstration of the problem. "The curlers think youre doing some kind of magic, until they do it themselves and see that the glass goes the wrong way."
Curling is the indoor winter sport popularized by the Scots, and now an official winter Olympic event, in which two opposing teams slide and rotate smooth 20-kilogram (44-pound) ovals of granite (the stone) down a 28-metre-long sheet of ice. The goal is to get your teams stones closer to the centre of a bulls eye-style target than the other teams.
Erik Jensen | EurekAlert!
UNH scientists help provide first-ever views of elusive energy explosion
16.11.2018 | University of New Hampshire
NASA keeps watch over space explosions
16.11.2018 | NASA/Goddard Space Flight Center
Researchers at the University of New Hampshire have captured a difficult-to-view singular event involving "magnetic reconnection"--the process by which sparse particles and energy around Earth collide producing a quick but mighty explosion--in the Earth's magnetotail, the magnetic environment that trails behind the planet.
Magnetic reconnection has remained a bit of a mystery to scientists. They know it exists and have documented the effects that the energy explosions can...
Biochips have been developed at TU Wien (Vienna), on which tissue can be produced and examined. This allows supplying the tissue with different substances in a very controlled way.
Cultivating human cells in the Petri dish is not a big challenge today. Producing artificial tissue, however, permeated by fine blood vessels, is a much more...
Faster and secure data communication: This is the goal of a new joint project involving physicists from the University of Würzburg. The German Federal Ministry of Education and Research funds the project with 14.8 million euro.
In our digital world data security and secure communication are becoming more and more important. Quantum communication is a promising approach to achieve...
On Saturday, 10 November 2018, the research icebreaker Polarstern will leave its homeport of Bremerhaven, bound for Cape Town, South Africa.
When choosing materials to make something, trade-offs need to be made between a host of properties, such as thickness, stiffness and weight. Depending on the application in question, finding just the right balance is the difference between success and failure
Now, a team of Penn Engineers has demonstrated a new material they call "nanocardboard," an ultrathin equivalent of corrugated paper cardboard. A square...
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16.11.2018 | Physics and Astronomy