The learning curve

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1 min 27 secs

5 mins

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10 mins 10 secs

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24 secs

10 secs

8 mins

46 secs

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16 secs

14 secs

5 mins 31 secs

8 mins

6 mins

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5 mins 9 secs

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9 mins

9 mins 45 secs

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2 mins 29 secs

2 mins 24 secs

11 mins 17 secs

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10 mins 11 secs

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12 mins 9 secs

5 mins 24 secs

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25 secs

10 mins 19 secs