Changes in ability to measure mass, time, and resolve microscopic detail
name: label: Collection Creator
content: Walker, Phillip L., 1947-2009
setName: label: See more items in
content: Phillip Walker papers
label: See more items in
content: Phillip Walker papers / Series 5: Writings and academic material / 5.2: Manuscript working files / File group 1:
unitdate: label: Date
content: undated
container: label: Container
content: Box 40
dataSource: label: Archival Repository
content: National Anthropological Archives
objectType: label: Type
content: Archival materials