The left coronary arteries supply: 1  Circumflex artery - supplies blood to the left atrium, side and back of the left ventricle. 2  Left Anterior Descending artery (LAD) - supplies the front and bottom of the left ventricle and the front of the septum.
A small luminary kit comes with 12 luminaries, the standard size has 24 luminaries. Luminaries should be placed about every 4 feet along your sidewalk connecting your neighbors on both sides. Most homes light their front walks from sidewalk to to their door as well.
Growing Apart. Was it something we said? While our two celestial bodies remain locked in orbit, the moon is slowly â very slowly â inching away from Earth, at a rate of about 3.8 cm a year. Right now the moon is more than 238,000 miles from Earth, but when it formed, it was just 14,000 miles away. How do scientists know? The moon's distance is measured by bouncing laser beams off reflectors on the moon's surface that astronauts from the Apollo missions left behind. Scientists can measure the time it takes for the laser beams to travel there and back and calculate the distance with a high degree of accuracy.