Isaac M. Singer; Isaac Merrit Singer; Singer (United States inventor of an improved chain-stitch sewing machine (1811-1875))Elmer Ambrose Sperry; Sperry (United States engineer and inventor of the gyrocompass (1860-1930))Francis Edgar Stanley; Stanley (United States inventor who built a steam-...
(1)正误判断题。根据第一段He was the world's first inventor of the printing.It is about 400 years earlier than the printing in Germany.(他是世界上第一位印刷术的发明者。它比德国的印刷早了大约400年。)可知,B项,印刷时间比德国早40年左右。表述错误。故选B
With the help of it, Chinese culture spread around the world more quickly. At the same time, the movable type printing was widely used in the world at that time. As a result, more and more culture communication among countries took place. The movable type printing, the compass (指南针),...
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(which, for the first time, allowed temperature variations to be measured) and an ingenious device to raise water from aquifers found no market. He found greater success in 1596 with a military compass that could be used to accurately aim cannonballs. A modified civilian version that could ...
Elmer Ambrose Sperry was a versatile American inventor and industrialist, best known for his gyroscopic compasses and stabilizers. As a boy, Sperry developed a keen interest in machinery and electricity. At the age of 19 he persuaded a Cortland manufactu
An enhancement to the compass app to provide additionally the direction to a waypoint How to trigger something if device is facing down How to create a nested listpicker How to get a date in format YYYY-MM-DD How to get leading zeros in App Inventor How to get the day of year How to...
inventWhen was the television invented?名词,指“发明”。inventionCompass was one of the greatest inventions.名词,指“发明家,发明者”。inventorThomas Edison was a great American inventor.1. When did peoplethe car?2. Who is theof the telephone?3. WeChat is anwhich can help people talk to ...
The method of storage is also important. Storing CO2 for just 60 years or 100 years isn’t good enough. If 100 years from now all that carbon is back in the environment, all we did was take care of ourselves, but our grandkids will have to figure it out again. In the...
“The dive operator challenged me when I came out of the water and said, ‘You build robots–why don’t you create a robot that can go and help control the lionfish problem?'” Angle tellsFast Company. “Rather than dismiss that as ‘Yeah, whatever,’ it was, ‘Okay, would that...