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.
Quite a lot. 1  We live very close (500 lightseconds) to a star. This is probably a necessary condition for the originination and maintenance of life.  Stars are very far apart (average about 8 lightyears for the closest dozen), compared to their size (about 2 lightseconds for the Sun); by a factor of 250 million or so.