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การประดิษฐ์เข็มทิศ เข็มทิศอย่างไร
ทุกที่เราอยู่ในโลก เราจะสามารถหาทางเราผ่านเข็มทิศได้ในวิธีง่ายมาก แม้ถ้าเรากลางทะเล มันจะใช้เราหาทางผ่านอุปกรณ์นี้ง่าย ๆ เพียงไม่กี่วินาที ปัจจุบันเข็มทิศได้เสมอวิธีง่ายที่สุดแม้ว่าจะมีอุปกรณ์ที่มีความซับซ้อนมากเช่นดาวเทียม GPS เข็มทิศมีศรแม่เหล็กที่มีความสมดุล และอยู่ด้านบนของเข็มเพื่อให้มันสามารถย้ายเกือบไม่ มีแรงเสียดทาน ลูกศรนี้ จากสนามแม่เหล็กในสนามแม่เหล็กเหนือของโลก (ทิศเหนือแม่เหล็ก), แสดงทิศเหนือเสมอ
เราสามารถคิดของโลกเป็นแม่เหล็กดี สนามแม่เหล็กของโลกเป็นผู้กำกับสั่งบางอย่างในกระบวนการก่อตัว และแสดงลักษณะแม่เหล็ก ตามลำดับ ขั้วโลกเหนือเป็นผู้กำกับเป็น S. ขั้วโลกใต้ยังเป็นผู้กำกับที่ N. ตัวอักษร N และ S ใช้ในแม่เหล็กมีบันดาลเหนือและขั้วทิศใต้
เข็มทิศเป็นเครื่องหมายเป็น N ลูกศร ทิศเหนือ และทิศเหนือของเข็มทิศดึงโลกเหนือจากหลักการดึงเสาที่แตกต่างกัน เพื่อให้รู้สึกว่าภาพนี้บนพื้นผิวของโลกมีเส้นผ่าศูนย์กลาง 8000 ไมล์ลูกศรของเข็มทิศมีแสงมาก และไม่ปราศจากแรงเสียดทาน มิฉะนั้น คุณจะไม่สามารถนำทาง โดยสนามแม่เหล็ก
ตามแนวแกนทั้งหมดของโลก เข็มทิศไม่ทำงาน ด้วยความแม่นยำ 100% บางพื้นที่จะไม่ปกติ ภูมิภาคเหล่านี้และเบี่ยงเบนเท่าใดจะแสดงรายละเอียดแผนที่
หนึ่งพิจารณาเมื่อใช้เข็มทิศเป็นการขาดงานของวัตถุโลหะที่ใช้สร้างสนามแม่เหล็กรอบ ๆ ถ้าสนามแม่เหล็กรอบเข็มทิศมีวัตถุที่เป็นพื้นผิวของโลกมากกว่า ลูกศรของเข็มทิศมีโดยตรงต่อวัตถุ นี้ยังหมายถึง การวัดผิดพลาด
ประวัติ
ชาวจีนคิดค้นเข็มทิศในประจำพ.ศ. 100 การค้นพบเข็มทิศเกิดจากหลักการว่า วัตถุอิสระจะเป็นทิศเหนือในสภาพแวดล้อมแม่เหล็ก
ในฝรั่งเศส เข็มแรกได้กล่าวถึงใน 1200 มันตามมา ด้วยไอซ์แลนด์ใน 1207 อังกฤษและ 1213เข็มทิศมีโครงสร้างแบบดั้งเดิม การพัฒนาสำคัญแรกคือ Pierre de Maricourt (1269) หลังจากที่เขาใส่เข็มในไม้โลหะ เขาปลูกมันในกล่องใส และจัดระดับ
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English
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Deutsche
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български
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hrvatski
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čeština
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dansk
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Nederlands
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français
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Ελληνικά
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हिंदी
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Indonesia
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italiano
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norsk
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Polskie
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Português
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românesc
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русский
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slovenský
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español
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Український
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Melayu
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svenska
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ไทย
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Magyar
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việt
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Suomalainen
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