Rope jumping sends your heart rate skyward quickly, so don't be surprised if you have to stop after just 1 to 2 minutes the first time you try it. Just jog in place, catch your breath, and jump for another miniround when you're ready. Aim to do your rope jumping 3 or 4 days a week. Beginners should try to complete one 5- to 15-minute session. More experienced jumpers can shoot for 20 to 40 minutes. Remember that you can alternate jumping styles if one becomes boring.
Kilauea Update: Hawaii Lava Flow Complicates Volcano Tourism. Kilauea Update: The lava flow burns vegetation as it approaches a property boundary in a U.S. Geological Survey (USGS) image taken near the village of Pahoa, Hawaii, October 28, 2014.
Lava flows from Kilauea volcano: Experts say magma may have once covered the surface of Mercury, explaining the strange chemical composition of rocks on the surface. 'You can tell what would happen as the melt cools and crystals form and change the chemical composition of the remaining melted rock,' Grove says.