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  2. Obsidian - Wikipedia

    en.wikipedia.org/wiki/Obsidian

    The source of obsidian for cultures inhabiting the territory of and around Greece was the island of Milos; the Starčevo–Körös–Criș culture obtained obsidian from sources in Hungary and Slovakia, while the Cardium-Impresso cultural complex acquired obsidian from the island outcrops of the central Mediterranean.

  3. Table of keyboard shortcuts - Wikipedia

    en.wikipedia.org/wiki/Table_of_keyboard_shortcuts

    Many of these commands may be combined with ⇧ Shift to select a region of text. [13] [14] [notes 6] In macOS, holding ⌘ Command while dragging mouse can be used to invert selection, and holding ⌥ Option can be used to select by rectangular area in some apps. (These two functionalities may be combined).

  4. Obsidian (software) - Wikipedia

    en.wikipedia.org/wiki/Obsidian_(software)

    Obsidian is a personal knowledge base and note-taking application that operates on Markdown files. [ 3 ] [ 4 ] [ 5 ] It allows users to make internal links for notes and then to visualize the connections as a graph .

  5. Classical cipher - Wikipedia

    en.wikipedia.org/wiki/Classical_cipher

    Classical ciphers are commonly quite easy to break. Many of the classical ciphers can be broken even if the attacker only knows sufficient ciphertext and hence they are susceptible to a ciphertext-only attack. Some classical ciphers (e.g., the Caesar cipher) have a small key space.

  6. Obsidian hydration dating - Wikipedia

    en.wikipedia.org/wiki/Obsidian_hydration_dating

    Obsidian hydration dating (OHD) is a geochemical method of determining age in either absolute or relative terms of an artifact made of obsidian.. Obsidian is a volcanic glass that was used by prehistoric people as a raw material in the manufacture of stone tools such as projectile points, knives, or other cutting tools through knapping, or breaking off pieces in a controlled manner, such as ...

  7. Fracture (mineralogy) - Wikipedia

    en.wikipedia.org/wiki/Fracture_(mineralogy)

    Obsidian. Conchoidal fracture breakage that resembles the concentric ripples of a mussel shell. It often occurs in amorphous or fine-grained mineraloids such as flint, opal or obsidian, but may also occur in crystalline minerals such as quartz. Subconchoidal fracture is similar to conchoidal fracture, but with less significant curvature.

  8. Wikipedia:10,000 most common passwords - Wikipedia

    en.wikipedia.org/wiki/Wikipedia:10,000_most...

    To use this list, you can search within your browser (control-F or command-F) to see whether your password comes up, without transmitting your information over the Internet. It may also be useful to browse the file to see how secure a completely insecure-looking password can appear.

  9. Drill commands - Wikipedia

    en.wikipedia.org/wiki/Drill_commands

    The U.S. command is Double time, march. Easy march: This is an unrestricted march at approximately Quick Time. This is designed for field marches and other rough conditions, though is not used in combat areas. The U.S. command is Route step, march. In the Canadian Forces the command March at, ease is given while the unit is on the march. It can ...