Copyright © Philip M. Parker, INSEAD. Terms of Use.

| Domain | Definition |
Environment | The dose of a toxicant or microbe that will kill 50 percent of the test organisms within a designated period. The lower the LD 50, the more toxic the compound. (references) |
Source: compiled by the editor from various references; see credits. | |
Hexadecimal (or equivalents, 770AD-1900s) (references)4C 44      35 30 2F      4C 45 54 48 41 4C      44 4F 53 45 |
| Leonardo da Vinci (1452-1519; backwards) (references)
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Binary Code (1918-1938, probably earlier) (references)01001100 01000100 00100000 00110101 00110000 00101111 00100000 01001100 01000101 01010100 01001000 01000001 01001100 00100000 01000100 01001111 01010011 01000101 |
HTML Code (1990) (references)L D   5 0 /   L E T H A L   D O S E |
ISO 10646 (1991-1993) (references)004C 0044      0035 0030 002F      004C 0045 0054 0048 0041 004C      0044 004F 0053 0045 |
Encryption (beginner's substitution cypher): (references)463822318172463954423546238495339 |
| 1. Orthography 2. Bibliography |
Copyright © Philip M. Parker, INSEAD. Terms of Use.