Sydney is a somewhat prominent first name for males (#848 out of 1220, Top 69%) and an even more prominent surname for all people (#35797 out of 150436, Top 24%). (2000 U.S. Census). Charted below is the birth name popularity of Sydney for boys.
The sigmoid colon is a curved, S-shaped region of the large intestine and is the final segment of the colon. It transports fecal matter from the descending colon to the rectum and anus. Feces are stored in the sigmoid colon until they are ready to be eliminated from the body through the anal canal.
A cycloid is the curve defined by the path of a point on the edge of a circular wheel as the wheel rolls along a straight line. It was named by Galileo in 1599 (http://en.wikipedia.org/wiki/Cycloid). A hypocycloid is a curve generated by the trace of a fixed point on a small circle that rolls within a larger circle.It is comparable to the cycloid, but instead of the circle rolling along a line, it rolls within a circle. Use Google to find a wonderful book of Eli Maor, Trigonometric Delights (Princeton, New Jersey).ence, let us find the parametric equations of the hypocycloid. A point on a circle of radius r rolls on the inside of a fixed circle of radius R. Let C be the center of the rolling circle, and P a point on the moving circle.