| There is a
picture of a smith hammering steel to make a magnet, in a book
called De Magnete written by Queen Elizabeth I's physician
Dr William Gilbert. |
|
Heating and
hammering with a steel bar in a North-South direction can make
a magnet. |
|
| |
|
|
|
| |
 |
This causes
the molecules to line up in the North-South orientation. |
|
| |
|
|
|
| Stroking a
piece of unmagnetised iron or steel with a known magnet can make
it into a magnet. |
 |
This causes
the molecules to line up in the North-South orientation. |
|
| |
|
|
|
| Placing a
magnet alongside a non-magnetised steel knitting needle for some
time will magnetise it. |
 |
This causes
the molecules to line up in the North-South orientation. |
|
| |
|
|
|
| Placing an
object such as a non-magnetised steel knitting needle in a north-south
position will allow it to become a magnet through the influence
of the earth's magnetic field. |
 |
This causes
the molecules to line up in the North-South orientation. |
|
