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Malcolm Deere Post 1

10 Jan 2021, 10:44

Week 5/3.3 Activity 4 Estimating the lifetime of the Sun

Hi. In the 'Reveal Answer' section of Week 5/3.3 Activity 4, the conversion of the lifetime of the sun from years to seconds is stated as follows :-

3.19 x 10^17 seconds / (365.25 x 24 x 60 x 60) = 1.1 x 10^10 years (11 billion years) 

I believe this expression actually evaluates to 1.01 x 10^10 years (10.1 billion years)?

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Johanna Jarvis Post 2 (unread) in reply to 1

11 Jan 2021, 09:48

Hi Malcolm, 

Thank you for pointing out this error. It's been noticed a few times before and we're just waiting for the technical team behind the BOC to make the correction for us.

Many thanks, Jo


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