Softball rules vary somewhat from those of baseball. Two major differences are that the ball must be pitched underhandâfrom 46 ft. (14 m) for men or 43 ft(13.1 m) for women as compared with 60.5 ft. (18.4 m) in baseballâand that seven innings instead of nine constitute a regulation game.
Many ENERGY STAR certified bulbs come in warm colors to match the yellowish light of incandescent bulbs, but you can also choose cooler colors with whiter or bluer light. Choosing the Right Color: Light color is measured on a temperature scale referred to as Kelvin (K). Lower Kelvin numbers mean the light appears more yellow; higher Kelvin numbers mean the light is whiter or bluer. Most ENERGY STAR certified bulbs are made to match the color of incandescent bulbs at 2200-3000K. For a whiter light, look for bulbs marked 3500-4100K. For bluer white light, look for bulbs marked 5000-6500K.
Best Answer: Kelvin is a SI base unit for measuring temperature. The weather forecast (depending on where you live) will use Celsius or Fahrenheit, but in science we prefer to use Kelvin. The symbol for Kelvin is K and does not, typically, use the degree symbol ...IE you say 310K not 310Â°K The zero point for Kelvin is sometimes referred to as 'absolute zero'.he Kelvin scale begins at absolute zero. Each degree on the scale is exactly the same size as a degree centigrade and 0 degrees Kelvin = -273 C. Therefore to convert between the two we have K = C + 273. Source(s): I am a retired research meteorologist, Ph.D, with some 45+ years experience.