1: A Standard Downstream Port (SDP) USB port can charge devices with up to 500 mA of current when the computer is on (a). However, when the computer is off (b), charging over USB is not possible. Fig. 2: The Pericom PI5USBxx is a USB charging controller.. Enabling all-the-time USB charging in PCs, laptops.
Walk Your Way to Good Health! If you're inactive but healthy, start with mile-long walks at a pace of three miles per hour five times a week. Over the course of a month, gradually increase your distance to three miles at a pace of four miles per hour five times a week. If you are unable to walk that fast, walk a little farther.
A 160-lb. person who walks only 35 minutes daily for 15 years weighs 18 fewer lbs. than a nonwalker, according to Harvard Men's Health Watch. Distance walking can help you lose more weight in less time. Walking 4 mph for an hour burns 334 calories, or slightly less than one-tenth of a pound if you weigh 155 lbs. Consequently, you can lose almost 18 lbs. in one year if you walked 4 miles almost every other day, or 180 times, during a year.