A physical object that possesses the ability to attract iron and other ferromagnetic materials, demonstrating magnetic properties either as a temporary state influenced by an external magnetic field or as a permanent characteristic.
A navigational instrument that utilizes the property of a magnetic needle, which aligns itself with the Earth's magnetic field to indicate cardinal directions, commonly known as a compass.
A naturally occurring mineral or ore that exhibits magnetic properties, such as magnetite or lodestone.
Example:
キートンはハトの頭に磁石を取り付けた。
A type of magnet that generates a magnetic field through the flow of electric current, featuring a core made of ferromagnetic material such as soft iron, which enhances its magnetic properties when energized and loses its magnetism once the current is interrupted.
An electromagnetic device that consists of wire wound into a coil around a magnetic core, capable of producing a temporary magnetic field that can be controlled by switching the electric current on or off.
方向を示すために使用される器具で、地球の磁場によって北を指し示す。
地理的な方向を特定するために使われる道具で、周囲の環境を把握する手助けをする。
移動中の方角を確認するために用いる、古くから使われているナビゲーションツール。
Example:
チャールズウォルコットはハトの方位磁石を探した。