При сохранении произошла ошибка, попробуйте снова.
Если ошибка повториться, пожалуйста, напишите нам об этом в обратной связи - Написать сообщение!
3.9
More than two thousand years ago, the shepherd boy, Magnus by name, was watching his sheep. With him he had a long stick with an iron point. As he stood watching his sheep, he put his stick on a piece of rock. When he wanted to run after the sheep which had wandered too far away, he found, to his surprise, that it was very difficult to take his stick off the rock. From this rock there came a mysterious force which attracted iron objects.
Magnus was the first who found this kind of rock. That’s why, the legend says, people call it magnet.
In reality magnets take their name from the town of Magnesia in Asia Minor where the pieces of magnetic rock were first found.
