you invented the ring
To determine the size of the ring P4, you would typically need to refer to a ring size chart or have the ring physically measured by a professional jeweler. Ring sizes vary by region and are measured using different methods, so it's best to consult a professional to ensure an accurate fit.
It might have been called a jingle clock or a ding dong clock - P K Sengupta
The charge density of a ring is the amount of charge per unit length along the circumference of the ring. It is calculated by dividing the total charge on the ring by the circumference of the ring. Mathematically, the charge density () of a ring is given by the formula: Q / (2r), where Q is the total charge on the ring and r is the radius of the ring.
A small ring is commonly referred to as a "pinkie ring" when worn on the little finger of the hand.
The "D" on a piston ring typically indicates the cylinder bore diameter for which the ring is intended. The "N" refers to the ring's position on the piston, such as top, middle, or oil control ring. Together, "D N" specifies the ring's size and location within the engine.
It looks like Jim Ward invented circa 1975.
The O-ring was invented by Niels Christensen (1865-1952); a Danish-American inventor.
The spring ring was first patented in 1900.
sherman hallof
JiaJia almighty
keyring were invented in 1922 by a man called G. Herluf Jhonson, the actual ring part by a juggler from Russia in 1830's.
Stan HartStan Hart
William Harvey
Ring Binders were invented in 1886 by a man named Friedrich Soennecken. He also invented the hole bunch in 1886.
bobby moore
because he thought it would be awesome
in the late -1500, in antiquity