simple pendulum experiment

3:37

26:25

32:19

12:57

12:40

18:47

4:24

3:13

4:38

4:06

14:46

8:32

3:35

44:34

10:43

1:31

8:47

4:47

14:12

47:42

13:05

14:41

00:59

4:43

8:54

3:25

3:33

2:04

00:25

6:18

4:28

7:06

1:54

4:11

6:12

57:34

7:20

13:07

10:21

6:49

37:04

9:35

15:30

42:11

7:27

11:41

8:20

16:00

24:26

6:22

23:19

13:52

7:40

2:26

2:50

19:52

29:22

00:30

3:18

3:17