Copyright © Philip M. Parker, INSEAD. Terms of Use.
| Domain | Definition |
Mining | A helmet in which the crown and frontpiece are blocked out of rawhide, and the front shield is fitted with two mica windows in hinged aluminum frames. It has a twin-tubed air feed on each side of the helmet and a valve for the escape of excess and vitiated air. Air is supplied through an armored hose from double-acting bellows or a blower worked by a second person at the fresh air base. Airtightness is obtained by means of a soft leather apron secured in position about the neck and shoulders. Illumination is provided by portable electric lamps, and communication with the wearer by an approved type of mine telephone. (references) |
Source: compiled by the editor from various references; see credits. | |
Hexadecimal (or equivalents, 770AD-1900s) (references)53 50 49 52 45 4C 4D 4F 53 4D 4F 4B 45 48 45 4C 4D 45 54 |
| Leonardo da Vinci (1452-1519; backwards) (references)
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Binary Code (1918-1938, probably earlier) (references)01010011 01010000 01001001 01010010 01000101 01001100 01001101 01001111 00100000 01010011 01001101 01001111 01001011 01000101 00100000 01001000 01000101 01001100 01001101 01000101 01010100 |
HTML Code (1990) (references)S P I R E L M O   S M O K E   H E L M E T |
ISO 10646 (1991-1993) (references)0053 0050 0049 0052 0045 004C 004D 004F 0053 004D 004F 004B 0045 0048 0045 004C 004D 0045 0054 |
Encryption (beginner's substitution cypher): (references)5350435239464749253474945392423946473954 |
| 1. Orthography 2. Bibliography |
Copyright © Philip M. Parker, INSEAD. Terms of Use.
