ferromagnetic material

5:39

9:23

1:16:01

4:07

5:43

17:07

27:12

7:59

4:04

5:01

46:19

2:42

00:38

4:15

4:49

13:39

1:08

12:51

13:01

8:53

4:31

41:01

3:56

12:12

13:10

21:11

16:21

12:03

51:03

1:36:35

6:46

28:36

16:52

28:50

5:06

25:53

31:56

5:01

11:14

18:39

11:08

11:14

14:59

24:11

10:20

32:44

24:19

13:54

7:44

9:08

2:43

1:17:30

3:04

37:27

3:31

2:58

18:42

25:43

14:01

17:44