South Korean speed skater Kim Min-sun has captured her first career world championship medal with a silver in the women's 500 meters. Kim finished second in the 500m at the International Skating Union (ISU) World Speed Skating Single Distances Championships in Calgary, Canada, on Friday (local time), with a time of 37.19 seconds. Femke Kok of the Netherlands won the gold medal at 36.83 seconds. Kimi Goetz of the...