Otis was very interested in electronics and electronics were a rising study in science, so Otis had to make electronical devices that were better than everyone else's. Otis' first invention was a electric resistor that was better and cheaper than anyone elses. Otis proved that the setback of having to drop out of school was not enough to discourage him by having a large significant impression on the world. Difficulties â¢Otis in total patented 28 electric devices
This is about 7.5 minutes. The longest total solar eclipse from 4000 BCE to 8000 CE, a span of 12,000 years, will occur on July 16, 2186 and will last 7 minutes 29 seconds. Its path sweeps across Colombia, Venezuela and Guyana. The August 21, 2017 total solar eclipse, by comparison, will last a maximum of 2 minutes 43 seconds.
The time interval between any two successive solar eclipses can be either 1, 5, or 6 lunations (synodic months). Earth will experience 11,898 eclipses of the Sun during the 5000-year period from -1999 to +3000 (2000 BCE to 3000 CE [2]).