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  2. Technical Difficulties - Wikipedia

    en.wikipedia.org/wiki/Technical_Difficulties

    Technical Difficulties (Training for Utopia album) The Technical Difficulties, a semi-educational, comedic and satirical podcast and video team made up of Tom Scott, Matt Gray, Gary Brannan, and Chris Joel. Technical Difficulties Radio, also referred to as Technical Difficulties, a series of livestreams and songs by Brockhampton. Category:

  3. Grade (climbing) - Wikipedia

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

    Brazilian climbing has two grades, with the first being a numerical grade from 1 (easiest) to 8 (hardest) and giving the "overall" level of difficulty (akin to the UIAA Scale of Overall Difficulty). The second, the technical grade, which is the most in use, defines the technical difficulty of the hardest movements (or sequences of movements ...

  4. Indian-head test pattern - Wikipedia

    en.wikipedia.org/wiki/Indian-head_test_pattern

    The Indian-head test pattern is a test card that gained widespread adoption during the black-and-white television broadcasting era as an aid in the calibration of television equipment. It features a drawing of a Native American wearing a headdress surrounded by numerous graphic elements designed to test different aspects of broadcast display.

  5. Degree of difficulty - Wikipedia

    en.wikipedia.org/wiki/Degree_of_difficulty

    Degree of difficulty ( DD, sometimes called tariff or grade) is a concept used in several sports and other competitions to indicate the technical difficulty of a skill, performance, or course, often as a factor in scoring. [ 1] Sports which incorporate a degree of difficulty in scoring include bouldering, cross-country skiing, diving ...

  6. Glossary of climbing terms - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_climbing_terms

    Also aid climbing grade. The technical difficulty grading system for aid climbing (both for "original" and an adapted version for "new wave"), which goes: A0, A1, A2, A3, A4, A5 and up to A6 (for "new wave"). See C-grade. Abalakov thread Abalakov thread Also V-thread. A type of anchor used in abseiling especially in winter and in ice climbing. ABD Also assisted braking device. A term used to ...

  7. Dyscalculia - Wikipedia

    en.wikipedia.org/wiki/Dyscalculia

    Dyscalculia (/ ˌdɪskælˈkjuːliə /) [1][2][3][4] is a learning disability resulting in difficulty learning or comprehending arithmetic, such as difficulty in understanding numbers, learning how to manipulate numbers, performing mathematical calculations, and learning facts in mathematics. It is sometimes colloquially referred to as "math ...

  8. Test card - Wikipedia

    en.wikipedia.org/wiki/Test_card

    Test card. SMPTE color bars: common NTSC test pattern. PM5544: common PAL test pattern. EBU colour bars (4:3) A test card, also known as a test pattern or start-up/closedown test, is a television test signal, typically broadcast at times when the transmitter is active but no program is being broadcast (often at sign-on and sign-off). [1]

  9. Mountaineering - Wikipedia

    en.wikipedia.org/wiki/Mountaineering

    Mountaineering, mountain climbing, or alpinism[1] is a set of outdoor activities that involves ascending mountains. Mountaineering-related activities include traditional outdoor climbing, skiing, and traversing via ferratas that have become sports in their own right. [2][3][4][5] Indoor climbing, sport climbing, and bouldering are also ...