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2. Morse code - Wikipedia

   en.wikipedia.org/wiki/Morse_code

   Chart of the Morse code 26 letters and 10 numerals [1]. This Morse key was originally used by Gotthard railway, later by a shortwave radio amateur [2]. Morse code is a telecommunications method which encodes text characters as standardized sequences of two different signal durations, called dots and dashes, or dits and dahs.

3. Whole genome sequencing - Wikipedia

   en.wikipedia.org/wiki/Whole_genome_sequencing

   In 1999, the entire DNA sequence of human chromosome 22, the second shortest human autosome, was published. [19] By the year 2000, the second animal and second invertebrate (yet first insect) genome was sequenced – that of the fruit fly Drosophila melanogaster – a popular choice of model organism in experimental research. [20]

4. Universal Product Code - Wikipedia

   en.wikipedia.org/wiki/Universal_Product_Code

   A UPC barcode. The Universal Product Code (UPC or UPC code) is a barcode symbology that is used worldwide for tracking trade items in stores.. The chosen symbology has bars (or spaces) of exactly 1, 2, 3, or 4 units wide each; each decimal digit to be encoded consists of two bars and two spaces chosen to have a total width of 7 units, in both an "even" and an "odd" parity form, which enables ...

5. Executive Order 6102 - Wikipedia

   en.wikipedia.org/wiki/Executive_Order_6102

   The regulations prescribed in the executive order were modified by Executive Order 6111 on April 20, 1933, both of which were ultimately revoked and superseded by Executive Orders 6260 and 6261 on August 28 and 29, 1933, respectively. [7] Executive Order 6102 also led to the extreme rarity of the 1933 Double Eagle gold coin. The order caused ...

6. Discount store - Wikipedia

   en.wikipedia.org/wiki/Discount_store

   In the 1960s and 1970s the term "discount department store" was used, and chains such as Kmart, Zodys and TG&Y billed themselves as such. [3] The term "discount department store" or "off-price department store" is sometimes applied to big-box discount retailers of apparel and home goods, such as Ross Dress for Less, Marshalls, TJ Maxx, and ...

7. Taylor series - Wikipedia

   en.wikipedia.org/wiki/Taylor_series

   The polynomials, exponential function e x, and the trigonometric functions sine and cosine, are examples of entire functions. Examples of functions that are not entire include the square root, the logarithm, the trigonometric function tangent, and its inverse, arctan. For these functions the Taylor series do not converge if x is far from b.