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Because the iron used in the needle (A lodestone I think it is sometimes called) is naturally attracted to the magnetic north of the planet, so in theory the compass will always tell you which direction north is.
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∙ 13y ago
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What tools did a tailor use?
They use needles and thread to make the clothes.
Did magellan use a compass?
yes
Who invented the compass and when?
There is no exactly mentioned reord of when was the first compass ever used. According to historical records, compass is believed to be used at the time of Qin Dynasty(221-206 B.C). The earliest compasses were made of lodestones. This mineral is made of iron oxide which orients itself to a north and south axis.In 1117 Zhu Yu's book Pingzhou Table Talks came out. It was the first time in the history of the compass that the device was mentioned as a tool for navigation. Later in the 8th Century A.D, magnetic needles replaced the loadstones. From the 8th century to 1050's, compass were actively used in ships. Records also prove that Zheng He of Yunnan (1371-1435) used the device during his voyages. Based on the history of the compass, these voyages took place between 1405 to 1433.
Can you knit a hat with straight needles?
You can if you seam up the side and it it is a great thing to do for beginners when you have the right pattern, which is the difficult part. Alternatively, if you do not wish to use circular needles you can use DPNs (double pointed needles) to knit in the round. Often in hat patterns which use circular needles you will need DPNs anyway, so it is good to have some of these when you knit in the round.
What technology did Henry Hudson use?
A compass.
Why would steel in a modern ship affect a compass?
Steel contains a large proportion of iron which affects compass needles.
What are compass needles made from?
its made from a really small magnet
When no current is present the compass needles will?
point to the magnetic north :)
What did a milliner use to make clothes?
cotton and needles and thred and a spinning wheel and a themble and an iron
How can one determine the poles of the magnetised iron bar?
Use a compass. The north (-seeking) pole of the compass will be attracted to the south pole of the magnet.
Can you use a small iron nail for a compass?
It depends how strong Earth's magnetic force is.
What has two needles but doesnt sew?
Compass Record player (?) Pincushion (?)
Why are iron needles good in compasses?
Iron needles are good for compasses because it is thin, and light
Is a compass a permanent magnet?
Compass needles are permanent magnets. in response to the Earth's magnetic field, the compass needle will point toward the geographic North Pole.
Is A compass needle permanent a magnet?
Compass needles are permanent magnets. in response to the Earth's magnetic field, the compass needle will point toward the geographic North Pole.
How do you find out if iron is a metal?
One method is to use a magnet. If the metal is iron, the magnet will be attracted.
What metal does a compass have to be away from to work?
Iron or steel. Since it is a magnet, a compass will point to iron instead of pointing North.
