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  2. Monopole antenna - Wikipedia

    en.wikipedia.org/wiki/Monopole_antenna

    In practice monopoles are mainly used at the two lowest resonant frequencies; where the element is one quarter of the wavelength long (/), the quarter-wave monopole, or one half of the wavelength long (/), the half-wave monopole, because their radiation patterns consist of a single lobe in horizontal directions, perpendicular to the antenna axis.

  3. Extreme ultraviolet lithography - Wikipedia

    en.wikipedia.org/wiki/Extreme_ultraviolet...

    Extreme ultraviolet lithography (EUVL, also known simply as EUV) is a technology used in the semiconductor industry for manufacturing integrated circuits (ICs). It is a type of photolithography that uses 13.5 nm extreme ultraviolet (EUV) light from a laser-pulsed tin (Sn) plasma to create intricate patterns on semiconductor substrates.

  4. Watch - Wikipedia

    en.wikipedia.org/wiki/Watch

    The left watch has a 24-hour analog dial with a mechanical 1/6s "sweep" movement, while the right one has a more common 12-hour dial and a "1s" quartz movement. A Russian mechanical watch movement with exhibition case back, showing its movement. A so-called mystery watch, it is the first transparent watch, [50] c. 1890. The movement is fitted ...

  5. Carbon nanotube - Wikipedia

    en.wikipedia.org/wiki/Carbon_nanotube

    One says that the tube is of the zigzag type or configuration, or simply is a zigzag nanotube. If the tube is instead encircled by a closed armchair path, it is said to be of the armchair type, or an armchair nanotube. An infinite nanotube that is of one type consists entirely of closed paths of that type, connected to each other.