90 degrees - but not square! DSC_1008v2
This is an engineers set square, used to check right angles. But right angles are not the same on a curved surface are they?
1,263
views
20
faves
4
comments
Uploaded on July 31, 2020
Taken on July 31, 2020
90 degrees - but not square! DSC_1008v2
This is an engineers set square, used to check right angles. But right angles are not the same on a curved surface are they?
1,263
views
20
faves
4
comments
Uploaded on July 31, 2020
Taken on July 31, 2020