vacuum-pumping Tube (41)

9 mins 26 secs

9 mins 59 secs

6 mins 38 secs

11 mins 21 secs

1 hour 5 mins 29 secs

26 mins 14 secs

43 secs

7 mins

19 mins 35 secs

5 mins

16 mins 32 secs

7 mins 48 secs

1 min 18 secs

5 mins 39 secs

17 mins 55 secs

5 mins 1 sec

15 mins 37 secs

30 mins 55 secs

18 mins 2 secs

13 mins

4 mins 30 secs

8 mins 16 secs

22 secs

8 mins 41 secs

5 mins 51 secs

6 mins

4 mins 35 secs