2. Post-it is one of the top five best-selling office suppliers. to make Post-its, introduced in 1980, 3M had to develop the adhesive, primer, back-side coating and new manufacturing equipment.
3. The first cellular phone was developed in 1973 by Martin Cooper at Motorola, and a test of 1,000 such phones followed in Chicago. The Federal Communications Commission authorized cellular service in 1982, and we haven’t shut up since. More than a third of all households in the U.S. subscribe.
4. among those redited with making electric washing machines was Alva J. Fisher. The machines used wringers to remove water
from clothes. Truly automatic machines appeared in the 1930s. An early ad for a GE washer read, “If every father did the family washing next Monday, there would be an electric washing machine in every home by Saturday night.”
5. Oh, baby, what a convenience! Procter&Gamble’s Pampers, born in 1961, were first used only for special occasions. Now the 95% of American parents who buy disposable diapers will spend up to $2,100 a child to avoid washing diapers.
6. Zippers were invented in 1913 by Swedish immigrant Gideon Sundback at Universal Fastener Co. in Pennsylvania. B.
F. Goodrich first used the word to refer to a fastener on a pair of its galoshes; it was not used in clothes until the 1930s. By 1941 zippers beat the pants off buttons in the Battle of the Fly.
7. Johnson&Johnson sold $3,000 worth of handmade Band-Aids in 1921, the year it introduced them. A company cotton buyer, Earle Dickson, had created them at home for his accident-prone wife. He then convinced his boss that the strips had merit.
8. Otto Wichterle, a Czech scientist, created the first soft contact lens in 1961. Bausch&Lomb bought the rights to his process for a reported $3 million in 1966.
Part 2
Scientists of the millennium (1) Vocabulary
Type
(any of the ) small blocks of metal or wood with raised letters on them, used in printing [印刷]活字, 铅字 Printing 【印刷术】
A small block of metal or wood bearing a raised letter or character on the upper end that leaves a printed impression when inked and pressed on paper. 活字：上端带有突出的字母或字的一小块木头或金属，涂上墨并压在纸上后就会留下印记
Such pieces considered as a group. 铅字群：被当作是一个整体的活字
Printed or typewritten characters; print.
印刷字：印刷的或打字机打的字；印刷物 A size or style of printed or typewritten characters; a typeface:
字体：印刷或打字机打出的字的大小或风格；字体：
a sans-serif type. 无衬线字体
Mould
A hollow container of a particular shape, into which some soft substance is poured, so that when the substance becomes cool or hard, it takes this shape
模具
, 铸造
Astronomer
A person who makes scientific studies of the