Volume 30

December 2007
Bulletin of the National Museum of Nature and Science Series E (Physical Sciences & Engineering) Volume 30

Katsuhiro Sasaki, Kazuo Okada, Minoru Kato

P.1
The Mechanism of the Automatic Wari-koma Dial in the Japanese Clocks and its Geometrical Error（リンクを新しいタブで開きます）(4.0 MB)

Masahiro Maejima

P.15
Electrical Works and their Workers in the Early Meiji Era（リンクを新しいタブで開きます）(360.8 KB)

Nobuo Mitsui, Masahiro Maejima

P.23
One of the Oldest Elevator Machines in Japan（リンクを新しいタブで開きます）(2.3 MB)

Keiichi Saijo and Takashi Nakajima

P.33
Prism Binoculars Made by Tokyo Gas and Electric Corporation（リンクを新しいタブで開きます）(2.0 MB)

Masahiro Osako

P.45
Ewing's Disk-recording Seismographs（リンクを新しいタブで開きます）(1.2 MB)

Akira Sugawara, Makoto Tari, Shuichi Iwata, Yoshikazu Tanabe

P.55
An Identification of the Key Technology for Development of Turbine Generators（リンクを新しいタブで開きます）(1.6 MB)