Even though the engine is the biggest concern with regard to breaking in a new car, drivers should also be mindful of the brakes and tires. Their surfaces aren't yet optimized for performance because they may have a film left over from the manufacturing process. Since tires and brakes both work by creating friction, they're less efficient if they're too smooth. So give yourself extra stopping distance for the first couple hundred miles in a new car, or whenever you get new brakes or tires. … [Read more...] about Do You Have to ‘Break In’ a New Car?
Road trip meme
In the era of smart phones with GPS and Google Maps, you're probably already familiar with the system of geographic coordinates that's commonly used to describe locations on the Earth's spherical surface. That system is based on latitude, the distance north or south from the Earth's equator, and longitude, which is the distance east or west of the Prime Meridian, an imaginary line that runs north to south through Greenwich, England. The distances are measured in degrees — 90 degrees in each direction for latitude, and 180 in each direction for longitude — and minutes, seconds and fractions of a second. (For more on how that system works, check out these pages from the U.S. Geological Survey and the IBM Knowledge Center.) … [Read more...] about How Do We Find Things in the Blackness of Space?