Stem cells are the body's raw materials â cells from which all other cells with specialized functions are generated. Under the right conditions in the body or a laboratory, stem cells divide to form more cells called daughter cells.hese stem cells come from embryos that are three to five days old. At this stage, an embryo is called a blastocyst and has about 150 cells. These are pluripotent (ploo-RIP-uh-tunt) stem cells, meaning they can divide into more stem cells or can become any type of cell in the body.
The effect of Industrialisation shown by rising income levels since 1500. The graph shows the gross domestic product (at purchasing power parity) per capita between 1500 and 1950 in 1990 International dollars for selected nations.
The start of the American Industrial Revolution is often attributed to Samuel Slater who opened the first industrial mill in the United States in 1790 with a design that borrowed heavily from a British model.he Industrial Revolution had begun in Britain during the mid-18th century, but the American colonies lagged far behind the mother country in part because the abundance of land and scarcity of labor in the New World reduced interest in expensive investments in machine production.