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  2. Milankovitch cycles - Wikipedia

    en.wikipedia.org/wiki/Milankovitch_cycles

    The current tilt is 23.44°, roughly halfway between its extreme values. The tilt last reached its maximum in 8,700 BCE, which correlates with the beginning of the Holocene, the current geological epoch. It is now in the decreasing phase of its cycle, and will reach its minimum around the year 11,800 CE. [15]

  3. Falling and rising factorials - Wikipedia

    en.wikipedia.org/wiki/Falling_and_rising_factorials

    [6] [7] When x {\displaystyle x} is a positive integer, ( x ) n {\displaystyle (x)_{n}} gives the number of n -permutations (sequences of distinct elements) from an x -element set, or equivalently the number of injective functions from a set of size n {\displaystyle n} to a set of size x {\displaystyle x} .

  4. Exact trigonometric values - Wikipedia

    en.wikipedia.org/wiki/Exact_trigonometric_values

    The trigonometric functions of angles that are multiples of 15°, 18°, or 22.5° have simple algebraic values. These values are listed in the following table for angles from 0° to 45°. [ 1 ] In the table below, the label "Undefined" represents a ratio 1 : 0. {\displaystyle 1:0.}

  5. Scherrer equation - Wikipedia

    en.wikipedia.org/wiki/Scherrer_Equation

    The shape factor has a typical value of about 0.9, but varies with the actual shape of the crystallite; λ {\displaystyle \lambda } is the X-ray wavelength ; β {\displaystyle \beta } is the line broadening at half the maximum intensity ( FWHM ), after subtracting the instrumental line broadening, in radians .

  6. The 9 Best Sale Items at Costco Right Now - AOL

    www.aol.com/9-best-sale-items-costco-200246923.html

    $5.50 off each 24-pack of 16.9-ounce bottles. If you're tackling Dry January, San Pellegrino sparkling mineral water is a great way to mix things up. The 24-pack of 16.9-ounce bottles is $5.50 off ...

  7. Read the full indictment: Luigi Mangione charged with murder ...

    www.aol.com/news/read-full-indictment-luigi...

    Luigi Mangione charged with additional murder counts on Tuesday in the fatal shooting of UnitedHealthcare CEO Brian Thompson, officials announced.. Mangione, 26, was charged with one count of ...

  8. Today’s NYT ‘Strands’ Hints, Spangram and Answers for Sunday ...

    www.aol.com/today-nyt-strands-hints-spangram...

    If there is already an active hint on the board, a hint will show that word’s letter order. Related: 300 Trivia Questions and Answers to Jumpstart Your Fun Game Night.

  9. Table of prime factors - Wikipedia

    en.wikipedia.org/wiki/Table_of_prime_factors

    Ω(n), the prime omega function, is the number of prime factors of n counted with multiplicity (so it is the sum of all prime factor multiplicities). A prime number has Ω( n ) = 1. The first: 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37 (sequence A000040 in the OEIS ).