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经过几天的研究,马格尼斯和外福来发现了关于磁铁的几个小秘密。秘密之一:两端磁性最强来做个小实验吧!你需要:条形磁铁,纸,若干曲别针。第一步:在条形磁铁上放上纸,把曲别针撒在纸上。第二步:观察。你是不是发现,条形磁铁两端聚集的曲别针最多?试着把条形磁铁两端的曲别针移到条形磁铁中间,你又有什么发现?把条形磁铁换成U形磁铁,结果会有不同吗?
After several days of research, Magnus and Fook Fu came to discover a few secrets about magnets. One of the secrets: the most magnetic at both ends to be a small experiment! You need: a bar magnet, paper, a number of paperclips. The first step: put a piece of paper on the bar magnet, the paper clips scattered on the paper. The second step: observation. Did you find that the largest number of paperclips gathered at the ends of bar magnets? Try moving the needles at the ends of the bar magnets into the middle of the bar magnets. What else did you find? Changing bar magnets to U-shaped magnets resulted in Is it different?