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

| Domain | Definition |
Computing | Provably unsolvable The set or property of problems for which no algorithm at all exists. E.g. the Halting Problem. See also provably difficult. Source: The Free On-line Dictionary of Computing. |
Source: compiled by the editor from various references; see credits. | |
Hexadecimal (or equivalents, 770AD-1900s) (references)50 52 4F 56 41 42 4C 59      55 4E 53 4F 4C 56 41 42 4C 45 |
| Leonardo da Vinci (1452-1519; backwards) (references)
|
Binary Code (1918-1938, probably earlier) (references)01010000 01010010 01001111 01010110 01000001 01000010 01001100 01011001 00100000 01010101 01001110 01010011 01001111 01001100 01010110 01000001 01000010 01001100 01000101 |
HTML Code (1990) (references)P R O V A B L Y   U N S O L V A B L E |
ISO 10646 (1991-1993) (references)0050 0052 004F 0056 0041 0042 004C 0059      0055 004E 0053 004F 004C 0056 0041 0042 004C 0045 |
Encryption (beginner's substitution cypher): (references)5052495635364659255485349465635364639 |
| 1. Orthography 2. Bibliography |
Copyright © Philip M. Parker, INSEAD. Terms of Use.