Melbourne Observatory Location (1871 and modern values)
The “Williamstown Observatory was established in July 1853″ [1]. ” The work of the Williamstown Observatory was wound down in mid 1863, as instruments were progressively
Maths
Zero ideas: Reflections on nothing
For someone who is a Maths Person, I don’t really like reading books on maths. I don’t mean textbooks from back in the
How far away is that plane? Using Log tables ...
Today I took this phone snapshot of a great plane trail. It was about 3pm, looking about West. You can click on any image to
Megabytes, microSD cards and typing
We take for granted how much ‘real world’ data our storage devices hold. A quick example:
One byte of storage is 1 typed character on
Contrails Fun 2 – Angles and Distances
After last years first episode with contrails, another one popped up today. During a late afternoon walk, on a sunny Winter’s day, I saw