Nils Sefstrom. Portrait of Nils Gabriel Sefstrom, Swedish chemist and physician (1787-1845). In 1831 he discovered the metal vanadium which can be used to strengthen steels and in high-temperature tools. Sefstrom was professor at the Caroline Institute of Medicine and Surgery, and at the School of Mines in Stockholm.
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Creative#:
TOP10193066
Source:
達志影像
Authorization Type:
RM
Release Information:
須由TPG 完整授權
Model Release:
N/A
Property Release:
N/A
Right to Privacy:
No
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