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2. Grade (slope) - Wikipedia

   en.wikipedia.org/wiki/Grade_(slope)

   d = run Δh = rise l = slope length α = angle of inclination. The grade (US) or gradient (UK) (also called stepth, slope, incline, mainfall, pitch or rise) of a physical feature, landform or constructed line is either the elevation angle of that surface to the horizontal or its tangent.

3. Pulse-width modulation - Wikipedia

   en.wikipedia.org/wiki/Pulse-width_modulation

   Some synthesizers have a duty-cycle trimmer for their square-wave outputs, and that trimmer can be set by ear; the 50% point (true square wave) is distinctive because even-numbered harmonics essentially disappear at 50%. Pulse waves, usually 50%, 25%, and 12.5%, make up the soundtracks of classic video games.

4. App Store (Apple) - Wikipedia

   en.wikipedia.org/wiki/App_Store_(Apple)

   This is an accepted version of this page This is the latest accepted revision, reviewed on 17 February 2025. Mobile app distribution platform by Apple For the macOS version of the App Store, see Mac App Store. App Store Screenshot of the App Store on iOS Developer(s) Apple Initial release July 10, 2008 ; 16 years ago (July 10, 2008) Operating system iOS, iPadOS, watchOS, tvOS, and VisionOS ...

5. Poverty in the United States - Wikipedia

   en.wikipedia.org/wiki/Poverty_in_the_United_States

   Number in Poverty and Poverty Rate: 1959 to 2017. The US. In the United States, poverty has both social and political implications. Based on poverty measures used by the Census Bureau (which exclude non-cash factors such as food stamps or medical care or public housing), America had 37 million people in poverty in 2023; this is 11 percent of population. [1]

6. NBA draft lottery - Wikipedia

   en.wikipedia.org/wiki/NBA_draft_lottery

   The NBA draft lottery is an annual event held by the National Basketball Association (NBA), in which the teams who had missed the playoffs the previous year participate in a lottery process to determine the draft order in the NBA draft.

7. Cathay Pacific - Wikipedia

   en.wikipedia.org/wiki/Cathay_Pacific

   Cathay Pacific Airways Limited, or simply Cathay Pacific, is the flag carrier of Hong Kong, with its head office and main hub located at Hong Kong International Airport.The airline's operations and its subsidiaries have scheduled passenger and cargo services to more than 190 [5] [6] destinations and more than 60 countries worldwide including codeshares and joint ventures.

8. C-4 (explosive) - Wikipedia

   en.wikipedia.org/wiki/C-4_(explosive)

   C-4 or Composition C-4 is a common variety of the plastic explosive family known as Composition C, which uses RDX as its explosive agent. C-4 is composed of explosives, plastic binder, plasticizer to make it malleable, and usually a marker or odorizing taggant chemical.

9. Display resolution standards - Wikipedia

   en.wikipedia.org/wiki/Display_resolution_standards

   In October 2011 Toshiba announced the REGZA 55x3, [48] which is claimed to be the first 4K glasses-free 3D TV. DisplayPort supports 3840 × 2160 at 30 Hz in version 1.1 and added support for up to 75 Hz in version 1.2 (2009) and 120 Hz in version 1.3 (2014), [ 49 ] while HDMI added support for 3840 × 2160 at 30 Hz in version 1.4 (2009) [ 50 ...