Antares' size/Sun's size = (5840/3340)2 Ã Sqrt[9120] = 3.057 Ã 95.5 = 292. Antares is almost 300 times the size of the Sun! If the Sun were replaced by Antares, the inner planets Mercury, Venus, and Earth would be inside Antares! It is a red giant star---a star close to death.
The Modified Medical Research Council Dyspnea Scale, or MMRC, uses a simple grading system to assess a patient's level of dyspnea -- shortness of breath. This scale doesn't define the sensation of breathlessness per se, but rather the degree of disability that such breathlessness poses on day-to-day activities.
millimeter. The mm stands for millimeters, as in the diameter of the bullet (the cone-shaped part at the front of a cartridge that is propelled out of the front of the barrel, or muzzle). Some calibers are measured metrically (e.g. 7.62 x 39 mm or 9 mm), and some are measured using the English system (e.g. .357 magnum or .500 S&W).