Franziska Weber and Tina Dietze of Germany won the Olympic gold medal Thursday in women\'s double kayaking over 500 meters. The silver went to Katalin Kovacs and Natasa Janics-Douchev of Hungary. Kovacs was part of Hungary\'s gold medal winning effort on Wednesday in the kayaking fours. Poland\'s Karolina Naja and Beata Mikolajczyk took the bronze.