This game is played by two people, using small rackets, called battledores, made of parchment or rows of gut stretched across wooden frames, and shuttlecocks, made of a base of some light material, such as cork, with trimmed feathers fixed around the top.
An alternative model which once enjoyed equal status with the big bang is the steady state theory, first proposed in 1948 by Hermann Bondi, Thomas Gold, and Fred Hoyle. This model, too, assumes that the universe is expanding, but proposes that it has no beginning or end in space and time.
Answer by Joshuaalexanderjohnson. Confidence votes 26. The Heliocentric theory was first proposed about 2300 years ago, by Aristarchus of Samos (310-230 BC). *Some argue that it was the Polish-German astronomer Nicolaus Copernicus (1473-1543), but his hypothesis was dated about 1800 years later.