Health scientists are becoming more and more interested in the citrulline content of watermelon. Citrulline is an amino acid that is commonly converted by our kidneys and other organ systems into arginine (another amino acid). The flesh of a watermelon contains about 250 millligrams of citrulline per cup.
The Julian day or Julian day number (JDN) is the number of days that have passed since the initial epoch defined as noon Universal Time (UT) Monday, January 1, 4713 BC in the Julian calendar. That noon-to-noon day is counted as Julian day 0. Thus the multiples of 7 are Mondays.
In astronomy, the Julian year is a unit of time; it is defined as 365.25 days of exactly 7004864000000000000â 86400 seconds (SI base unit), totalling exactly 7007315576000000000â 31557600 seconds in the Julian astronomical year.