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2. Engineering drawing abbreviations and symbols - Wikipedia

   en.wikipedia.org/wiki/Engineering_drawing...

   Y14.24–1999: Types and applications of engineering drawings Y14.3–2003: Multiview and sectional view drawings Y14.31–2008: Undimensioned drawings Y14.36M–1996: Surface texture symbols Y14.38–2007: Abbreviations and acronyms for use on drawings and related documents Y14.4M–1989: Pictorial drawing Y14.41–2003

3. Crossing number inequality - Wikipedia

   en.wikipedia.org/wiki/Crossing_number_inequality

   Thus we can find a graph with at least e − cr(G) edges and n vertices with no crossings, and is thus a planar graph. But from Euler's formula we must then have e − cr(G) ≤ 3n, and the claim follows. (In fact we have e − cr(G) ≤ 3n − 6 for n ≥ 3). To obtain the actual crossing number inequality, we now use a probabilistic argument.

4. Chromium compounds - Wikipedia

   en.wikipedia.org/wiki/Chromium_compounds

   Chromium compounds are compounds containing the element chromium (Cr). Chromium is a member of group 6 of the transition metals . The +3 and +6 states occur most commonly within chromium compounds, followed by +2; charges of +1, +4 and +5 for chromium are rare, but do nevertheless occasionally exist.

5. Crossing number (graph theory) - Wikipedia

   en.wikipedia.org/wiki/Crossing_number_(graph_theory)

   This is the minimum number of crossings among all drawings of this graph, so the graph has crossing number cr(G) = 3. In graph theory, the crossing number cr(G) of a graph G is the lowest number of edge crossings of a plane drawing of the graph G. For instance, a graph is planar if and only if its crossing number is zero. Determining the ...

6. Hume-Rothery rules - Wikipedia

   en.wikipedia.org/wiki/Hume-Rothery_rules

   Fundamentally, the Hume-Rothery rules are restricted to binary systems that form either substitutional or interstitial solid solutions. However, this approach limits assessing advanced alloys which are commonly multicomponent systems. Free energy diagrams (or phase diagrams) offer

7. Hacker stole documents from file server used in civil case ...

   www.aol.com/hacker-stole-documents-file-sharing...

   A hacker gained access to an online secure document-sharing file between attorneys involved in a civil lawsuit brought by a close friend of former Rep. Matt Gaetz, according to sources familiar ...

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9. Kate Middleton Wore Her Engagement Ring in Public for the ...

   www.aol.com/kate-middleton-wore-her-engagement...

   In fact, until this past weekend, Kate hadn't worn her engagement ring in any public appearance—or any images or videos shared on Kensington Palace's social media channels—since attending the ...