Ausst. 338 - Ablaßbrief zum Besten der Wiederherstellung der Kathedrale zu Saintes, 1486

Vorbesitzer: Druda Haemerckers (?)

Mus Hs 953 - Una stella in mare : [romanza]

[Angelo Mariani]

(Table 11-I, page 338) Metal contents (%) of a representative sampling of manganese nodules from the North Pacific high-grade region

Two types of deep-sea dredges are currently under development for the mining of the manganese nodules, a deep-sea hydraulic dredge and a mechanical cable-bucket system. Both systems offer some advantages with the hydraulic system appearing to be advantageous in themining of a specific deposit for which it is designed while the cable-bucket system appears to be somewhat more flexible in working in a variety of deposits, topographic environments, and water depths. Environmental studies conducted in conjunction with deep-sea tests of the two types of mining systems currently indicate that substantially no environmental damage will be done in the mining of the deep-sea nodules. Because of the nature of the deposits and the way in which they can be mined, the manganese nodules appear to be a relatively pollution free and energy-saving source of a number of industrially important metals.

Pociña Pérez, A. García González, J. (eds.), En Grecia y Roma, III: mujeres reales y ficticias en Grecia y Roma, Granada, Eug, 2009, 566 pp. ISBN 978-84-338-5067-6

Fil: Martínez Astorino, Pablo Leandro. Universidad Nacional de La Plata. Facultad de Humanidades y Ciencias de la Educación. Instituto de Investigaciones en Humanidades y Ciencias Sociales (UNLP-CONICET); Argentina.