The current sourcing method used to fingerprint obsidian, and used by Richard Hughes to verify James Griffin's determination that obsidian in the Ohio Hopewell mounds had come from Obsidian Cliff in Yellowstone National Park some 2400 kilometers away is
a. instrumental neutron activation analysis (INAA).
b. petrographic analysis.
c. microscopic observation of thin sections.
d. x-ray fluorescence (XRF).
e. direct acquisition.
Question 2
The fact that material culture reflects symbolic meanings as well as functional behaviors means
a. the symbolic meanings of artifacts are easily inferred by understanding their function in a culture.
b. it can be difficult to construct middle-level theory that allows us to interpret archaeological patterning and to infer social and political organization from artifacts.
c. it is difficult to infer functional behaviors from artifacts without understanding the political and social organization a culture.
d. it does not require well-supported ethnographic analogy.
e. there will never be new techniques to test various hypotheses and continue to improve the reconstruction of the past.
Heliospheric-current-sheet
“To confess my weakness,” Hamilton wrote when he was only fourteen, “my ambition is prevalent.” This
When the exhaust is lean, the PCM applies a positive current into the pump cell.
Gulf Stream/North Atlantic Current
Derivative using delta method
Derive the following using the increment/delta method and find its slope