- #1
Johndigger
- 1
- 0
Ok, my brother & I were trying to work this out.
Without directly knowing the angles is it possible to work out how far away a plane is in the sky?
For example, a boeing 747 is about 70m long. It appeared to be about 0.001m holding out a ruler about 80cm from my eye.
I look forward to reading your replies.
Thank you.
Without directly knowing the angles is it possible to work out how far away a plane is in the sky?
For example, a boeing 747 is about 70m long. It appeared to be about 0.001m holding out a ruler about 80cm from my eye.
I look forward to reading your replies.
Thank you.