Well I used to do Geometrical Drawing at school - I think I used a 2H if I recall! Certainly not up to speed on the latest techniques - we'll look forward to some stunning silhouettes from you in future - while I continue to use Paint for any editing! Good luck with the course
We were calculating the number of 'vacancies' in metal crystals today and my brain hurts
I've had to look that one up....does look a little mind numbing to a non-techy like me!