the chinese are credited with the developent of the________ which was used for oceanographic navigation beginning in the 12th century.

Answers

Answer 1

Answer:

compass

Explanation:

A compass is a device that indicates direction. It is one of the most important instruments for navigation

It is believed that the Chinese were the first  to develop a magnetic compass that could be used for navigation. Historians estimate this development happened around the 12th century


Related Questions

Your zenith is always directly about your head, unless you are in the southern hemisphere where it is below your feet. True False
Previous question

Answers

True. In the Northern Hemisphere, the zenith is directly above the head, while in the Southern Hemisphere it is below the feet.

The Difference between the Zenith in the Northern and Southern Hemispheres

The zenith is the point in the sky that is directly above an observer. In the Northern Hemisphere, the zenith is located directly above the observer's head. However, in the Southern Hemisphere, the zenith is located directly below the observer's feet. This is due to the fact that the earth is round, and the observer's position in relation to the equator determines what direction the zenith is located. In the Northern Hemisphere, the zenith is located above the observer because they are north of the equator, while in the Southern Hemisphere, the zenith is located below the observer because they are south of the equator.

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Answer:

True

Explanation:

When the sun angle is low, the intensity of radiation arriving at the surface will be reduced because
the radiation is spread out over a larger area when it hits obliquely and the longer path diagonally down through the atmosphere means more of the energy is prevented from reaching the surface.

Answers

Answer:

The smaller the angle, the greater the surface area over which the sun’s rays spread. This effect reduces the sun’s intensity in any one place. For example, at a 45 degree angle of incidence, solar radiation covers a 40 percent greater area and is 30 percent less intense than at the maximum angle of incidence of 90 degrees.

Explanation: pls give me a thank you  

Starting at the beach and moving seaward, put these features in the correct order in which you would encounter them (assuming you could walk on the sea floor)
A. Continental shelf
B. Continental shelf break
C. Continental slope
D. ac Continental rise

Answers

The features in the correct order when starting at the beach and moving seaward are continental shelf, continental shelf break, continental slope, continental rise.

Thus, the correct order is A - B - C - D.

Seаwаrd is the direction or side аwаy from lаnd аnd towаrd the open seа. When we walk on the sea floor and move to the seaward, we will find:

Continentаl shelf. This is very shаllow wаter, аnd underlаin by continentаl crust. Continentаl slope. This is much steeper thаn the shelf, usuаlly аbout 3° but rаnging from 1-10°. The slope will be underlаin by trаnsitionаl crust.  Submаrine cаnyons, often offshort from mаjor rivers, cut through the slope.Continentаl rise. Аs currents slope аfter moving down the continentаl slope, they deposit sediments which hаve а gentler slope. Аbyssаl plаins. Very flаt, lаrgely feаtureless feаtures.

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PLEASE HELP HUMAN GEOGRAPHY Which of the following describes the importance of the invention and diffusion of the seed drill in the early eighteenth century?


It added iron to the soil; iron was important to growing strong plants and increasing agricultural productivity.


It increased a farmer's grain yields by a multiple of at least 10.


It increased efficiency by helping farmers prepare large fields for planting grain crops.


It was instrumental in adding efficiencies and decreasing waste when farmers planted their crops.


It eliminated the need for the farmer to walk behind his horses, which pulled the farm equipment.

Answers

Answer:

It was instrumental in adding efficiencies and decreasing waste when farmers planted their crops.

Explanation:

Option (d), When farmers planted their crops, it was essential for increasing efficiency and reducing waste.

Why was it important to build the seed drill?

Seeds could now be planted underground as opposed to on top of the ground, where they would have otherwise been blown away by the wind or eaten by animals. This was made possible by the development of the seed drill. This technology greatly increased crop yields only by planting the seeds in the ground.

Jethro Tull's invention of the seed drill was important for the Industrial Revolution for what reason?

The seed drill, which was used to facilitate an agricultural boom, set off a trend of scientific rationalism that would come to dominate throughout the Industrial Revolution. Although Tull's beliefs were mocked and labelled irrational, they eventually formed the foundation for modern mechanized agriculture.

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Which two claims about cats are most likely to be based on science?

Answers

There are two cat-related assertions that are most likely to be supported by science:

This assertion is supported by the structure of a cat's paws, which are retractable. In order to protect their claws and preserve their sharpness, cats have a specific mechanism that allows them to retract their claws when not in use.

Cats have an acute sense of smell: This assertion is supported by research that demonstrates cats have an exceptionally developed sense of smell, which they utilize to find food and navigate their environment.

One of the most trustworthy and well-established claims regarding cats, these assertions have been the subject of much research and are backed by scientific data.

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