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Q: What two instruments made navigation much easier in the 1900's?
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What improvements were made that made navigation easier?

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Would Not be an example of an innovation in the navigation arts that made exploration easier?

the compass


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Instruments: Lateen sails Improvments: Caravel


Why were these improvements to PATA made?

The improvements were made to PATA to allow for the programs to load faster. The improvements are made to make navigation easier as well.


What made travel to California easier in the 1900S's?

the transcontinental railroad;)


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compass, astrolabe cross-staff, back-staff


What two instruments made navigation much easier in the late 1900s?

There were several. Probably the two most important were the compass and the sextant. Angle-measuring devices are named by the portion of a circle that they are. Early elevation measuring devices were primitive by comparison to modern ones, and w covered one quarter of a circle, and so they were called a "QUADRANT". Smaller ones used a mirror arrangement; they could be half the size without losing accuracy. These covered an eighth of a circle, and were called "OCTANTS", from the Latin "octo-" for "eighth". But these weren't big enough to measure high elevations, so they increased in size to cover a sixth of a circle (with the same mirror arrangement to double the angle) and were named for the Latin word for six, or "sextus"; this is the modern SEXTANT.


What challenges made it difficult for explorers to circumnavigate the world for the first time?

No maps, crude instruments for navigation, not understanding "what is out there", and a misunderstanding about the true placement of land, currents, and areas.


What early 1900s development using sound waves made mapping the topography of the ocean floor easier?

SONAR, which was developed by the military to detect submarines.


Navigation on the sea by using the position of the stars to find one's way was made much easier in previous centuries by the invention of what instrument?

It is called an astrolabe.


When was domo made?

Domo was made in the 1900s.