Question

Select the correct answers.

Answer 1

Answer:

1. It enabled the Chinese people to navigate the seas and participate in sea trade.

2. It inspired China to expand its army and conquer more territory.

When was the compass invented?

⇒ In Greece:

In an area of northern Greece known as Magnesia, a Greek shepherd by the name of Magnes is claimed to have been caring for his sheep some 4,000 years ago. As soon as he took a step, he saw that his staff's metal point and the nails holding his shoe together were firmly attached to the rock underneath him. He started digging out of curiosity and came across the first known lodestone. Since then, lodestones have been referred to as "magnetite," likely in honor of Magnes or Magnesia.

⇒ In Rome:

Pliny the Elder, a Roman scholar and naturalist who carried out important scientific studies for the then-Roman emperor Vespasian, wrote of a hill composed of a stone that attracted iron in the early years of the first century A.D. After Pliny linked magic to magnetite's properties, years of superstitious notions about the substance developed, including the idea that ships that had vanished at sea could have truly been drawn to magnetic islands. Pliny perished in the Pompeii explosion, which is an unconnected but intriguing side issue.

⇒ In Scandinavia:
The Vikings had several reasons to make use of the lodestone's magnetic qualities since Scandinavia had a significant deposit of lodestone and there wasn't enough light during the winter to navigate by. The Vikings are said to have used a compass-like instrument composed of lodestone and iron as early as 1,000 B.C. A magnetic iron needle inserted into a piece of straw and floating in a bowl of water was used by Viking seafarers to distinguish north and south, according to history.

⇒ In China:

It's possible that the Chinese invented a mariner's compass even before the Vikings and with a comparable design. As early as 800 A.D., the Chinese used a lodestone splinter that floated on water to navigate. The magnetic compass was introduced to Italy by explorers like Marco Polo, allowing Europeans to finally explore the waters that the Vikings had previously been utilizing for at least 500 years to navigate using their own version of the compass.

⇒ In France:

One of the earliest published descriptions of the scientific qualities of magnets was given by French scholar Petrus Peregrinus in the 1200s. A crucial element of the first dry compass, the freely rotating compass needle is depicted and discussed in his article. According to legend, Peregrinus composed these writings while taking part in the papal-approved crusade and assault on the Italian city of Lucera. Speaking of multitasking!

⇒ In England:

William Gilbert, a doctor from Britain, was the first scientist to create a magnet. In addition to learning that magnets could be made out of iron and that their magnetic characteristics could be lost when iron was heated, he also learned that the Earth itself was a magnet in 1600.

⇒ In Denmark:

Hans Christian Oersted started looking into the connection between electricity and magnetism 200 years later, in 1820. He used a magnetic compass that was inaccurately placed next to an electrical line to illustrate his idea.

In laboratories throughout the world, researchers are still learning about the fascinating characteristics of magnetism and electromagnetism. Will one of them be you?

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Attachments: (*Limited 5 images*) (Some may not be applicable)

(1) Greece

(2) Rome

(3) Scandinavia

(4) China

(5) France

(6) England

(7) Denmark

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Thank you,

Eddie