Impact Tests for Woods
A 1922 technical report from the NASA Technical Reports Server, catalogued under the title Impact Tests for Woods, with no named author or patron given in the record. Its pictures show a load-deflection graph for a wood specimen and photographs of a drop-weight impact testing frame with broken wood test pieces laid out below. A designer could take from it the stark, functional look of early engineering documentation: plain black line plots on squared paper and grainy sepia photographs of apparatus.
