1 Laura Bridgman (1829 â 1889): first deafblind child to be successfully educated in the U.S.A. 2  Helen Keller (1880 â 1968): author, activist, and lecturer, first deafblind person to receive a Bachelor of Arts degree and perhaps the person most popularly associated with the condition.
The calories burned, for an average male, weighing 190 pounds (86 kg) is 129 Calories, in 30 minutes of drumming (e.g., bongo, conga, benbe), moderate, sitting. The calories burned, for an average female, weighing 163 pounds (74 kg) is 111 Calories, in 30 minutes of drumming (e.g., bongo, conga, benbe), moderate, sitting.
1 If you weigh roughly 130 pounds: 708 calories burned rollerblading per hour. 2  If you weigh roughly 155 pounds: 844 calories burned per hour.  If you weigh roughly 180 pounds: 981 calories burned per hour.