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Copy of reconstructed Goldsmith's equal-armed balance

Copy of reconstructed Goldsmith's equal-armed balance

Reproduction of an early (1821) Korean rain gauge

Reproduction of an early (1821) Korean rain gauge

1911-1923
Reproduction in plaster of an early Korean rain gauge (circa 1821) which is a copy of an older one of 1770 at the Korean observatory in Incheon (formerly known as Chemulpo). (see note)

Reproduction of early Korean rain gauge, 1821, with base

1911-1923
Copy of Arthur Porter's Msc thesis, England, 1934. Copy of Arthur Porter’s Msc thesis “the construction of a model mechanical device for the solution of differential equations, with applications to the determination of Atomic Wave Functions”. The thesis was presented by Arthur Porter for the degree of Master of Science in the Victoria University of Manchester in September 1934.

Copy of Arthur Porter's MSc thesis

1934