The first phone call was made by Bell in 1876. The first words spoken on the telephone were “Mr. Watson, come here! I need you!” Television was invented in 1926 by John Logie Baird, a Scottish inventor. Baird's television certainly didn't look like a television today! Electronic ...
By the 1960s most people could expect to live to be at least 60. By this time most people in developed countries had a very good life. Of course new inventions continued to be made. But man then had a desire(渴望)to explore again. The earth was known to go into space. Russia made...
Women made numerous innovative contributions and inventions throughout history, from everyday items to widely-used technologies. Here are some made by brilliant women. The Synthetic(合成的)Fibre In the 1960s, a company, where Stephanie Kwolek worked, was working on finding a suitable fibre to ...
Although there have been numerous modifications and developments to the design of convertibles, the credit for envisioning and making the first practical retractable manual hardtop system goes to Ben P. Ellerbeck in 1922. The first power-operated retractable hardtop was made by a Parisian Georges Pau...
Women’s Innovative Contributions and Inventions Women made numerous innovative contributions and inventions throughout history, from everyday items to widely-used technologies. Here are some made by brilliant women. The Synthetic(合成的)Fibre In the 1960s, a company, where Stephanie Kwolek worked,...
This made him happy. _6_, when he came to the place, he could not find the _7_. He became very, very sad. H 24、e began to cry. _8_a man came to him and said, “Dont cry. Put a stone in the ground instead, and _9_it is a box of gold coins. A stone will be ...
Please don’t ___ ___ in class. 她经常小声说话。She often talks in a low ___. 在空气中光比声音传播的速度快。Light travels faster thanin the air. 19. ...itsometimesmade a messon the paper...有时在纸上弄得一团糟。 (1)sometimes频度副词,“有时”,与at times同义。 我有时在周末...
(1)Morpher is made of ___. For example, in the Philippines, there were once thousands of varieties of rice: now fewer than 100 are grown there. In China, 90 percent of the wheat varieties grown just a century ago have disappeared. Scientists believe that over the past century, we have...
, paper was made in some places in China. It was developed in the Eastern Han Dynasty (25 A.D.-220 A.D.) by Cai Lun. He made paper with bark(树皮), old cloth and so on.It is said that in the third century a Chinese man wrote about how to make gunpowder(火药). At first, ...
C.It can extend the service life of kitchen sinks.D.It can remove food waste easily.(2)What can we learn about William's surgical gloves? DA.They made William known worldwide.B.They assisted in the treatment of skin diseases.C.They were invented with the aid of William's colleagues....