timing how long it takes for your kettle to boil 1 cup (250ml) of water. looking at the power of your kettle (Watts, often found on the base of the kettle) joules = wattage x time (in seconds)
Rock climbing can help build and tone your legs and glutes. Indoor rock climbing is a sport that when properly executed, recruits every major muscle group in the body. Rock climbing is a full body workout that tones and strengthens the arms, shoulders and core muscles. You can also effectively strengthen and tone your legs and buttocks with regular indoor rock climbing sessions.
Rock Climbing: You'll burn about 454 calories per hour on your way up and 284 per hour on your way down. 7. Jumping Rope: Your favorite childhood playground game is actually an incredible workout. Depending on your pace and intensity, it can burn about 670 calories an hour.