scientist srinivas bhaskar chaganti about kamma gear flywheel power generation

کوتاه

5:11

کوتاه

10:37

7:32

1:53

6:58

3:25

2:42

7:34

1:15

2:23

9:59

18:01

کوتاه

2:28

6:42

2:29

2:41

4:55

51:02

3:10

5:19

20:51

4:47

5:00

9:12

کوتاه

2:34

8:43

2:18

5:51

5:51

8:51

1:29

4:43

1:18

8:08

7:24

13:01