a light year is a unit of distance it is the distance that light can travel in one year light moves at a velocity of about 300000 kilometers km each second so in one year it can travel about 10 trillion km
Top 10 Skill Sports. Which sports are rated highest for skill - the specific skill set and technique required to be successful? This list is based on the ratings of the factors of success considered most important by visitors to this website. Sailing and weight lifting were considered the sports requiring the most skill. The ratings are still being recorded (this list from Nov 2016), so the list order may change over time.
Tennis is a great lifetime fitness activity because it only requires two people to play. Photo Credit tennis image by laurent gehant from Fotolia.com. Some fitness activities may be easy to start while you're a kid, but harder to maintain as an adult. Team sports are a perfect example of this. It may be easy to join a tackle football team in high school, but it's going to be a little more difficult to find a team in your 40s. This is why it's important to focus on learning and participating in activities that are easier to maintain over the course of your life.