用指南针辨别方向时,铁制品会影响吗

2025-03-14 06:11:41
推荐回答(4个)
回答1:

我找到了用手表,当指南针用的方法,你试着,反向思维考虑考虑下午6点时,把手表的三点指着太阳的方向,这时太阳在西方,12点所指的位置就是正南方;下午4点时,把手表的2点指着太阳的方向,这时太阳在西方,12点所指的位置就是正南方;上午10点时,把手表的11点指着太阳的方向,这时太阳在东方,12点所指的位置就是正南方!手表测向“时数折半对太阳,12指的是北方”,一般在上午9时至下午4时之间可以很快地辨别出方向,用时间的一半所指的方向对向太阳,12时刻度就是北方,如下午14:40的时间,其一半为7:20,把时针对向太阳,那么12指的就是北方,或者是把表平置,时针指向太阳,时针与12时刻度平分线的反向延伸方向就是北方;或者置手表,将一根小棍垂直立在手表中央转动手表,使小棍的影子与时针重合,时针与12时刻度之间的平分线即是北方。必须注意:(1)判定方向时,手表应平置;(2)在南、北纬20°30′之间地区的中午前后不宜使用,即以标准时的经线为准,每向东15°加1小时,向西15°减1小时。应将北京时间换算成当地时间。以东经120°为准,经度每向东15°,将北京时间加1小时,每向西15°,则北京时间减1h,即为当地时间。如乌鲁木齐市的地理坐标是东经87.70,则(120-87.7)÷15=2.15(h),粗略为2小时。将北京时间减去2小时,就是乌鲁木齐市当地时间,其余类推。注意:夏天在台湾省嘉义、广东省汕头东北的南澳岛、广西壮族自治区梧州、云南省个旧的北回归线以南地区,以上方法不能适用。

回答2:

这个会影响的。

回答3:

回答4:

应该不会吧,磁铁才会影响

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