Two locations on the Moon were given primary consideration for exploration by the Apollo 16 expedition, the Descartes Highlands region west of Mare Nectaris and the crater Alphonsus.

It has been argued by John Mosier that, while the French soldiers in 1940 were better trained than German soldiers, as were the Americans later, and the German army was the least mechanised of the major armies, its leadership cadres were both larger and superior and their high standards of leadership were the primary reason for the successes of the German army in World War Two as it had been in World War One.

Two of these six helices are separated by a loop that lines the pore and is the primary determinant of ion selectivity and conductance in this channel class and some others.

Two primary factors influence Japan's climate: a location near the Asian continent and the existence of major oceanic currents.

Two of the Giants " Giant Quarterbacks " logos ; primary logo 1956 – 60 ( top ), and secondary logo 2000 – 2009.

Two water molecules are oxidized by four successive charge-separation reactions by photosystem II to yield a molecule of diatomic oxygen and four hydrogen ions ; the electron yielded in each step is transferred to a redox-active tyrosine residue that then reduces the photoxidized paired-chlorophyll a species called P680 that serves as the primary ( light-driven ) electron donor in the photosystem II reaction center.

Two of the primary architects of the Aztec empire were the half-brothers Tlacaelel and Montezuma I, nephews of Itzcoatl.

Two primary authorities granted to the Army Corps of Engineers by Congress fall under Section 10 of the Rivers and Harbors Act and Section 404 of the Clean Water Act.

Two nationalism's primary myths are connected with beliefs in:

Two primary methods have been used to define and locate the G-Spot as a sensitive area in the vagina:

The golden age began with the 4th dynasty, which seems to have furthered the primary role of Memphis as a royal residence where rulers received the double crown, the divine manifestation of the unification of the Two Lands.

Two miles ( 3 km ) west of Marsing, Highway 55 connects with U. S. Route 95, the primary north-south route for the state.

Two of which are primary schools and the other is a secondary school.

The One Hundred and Two River, located on the eastern side of the city, is the primary source of power and water for the city.

Two rounds are held, with the top two vote-getters in the primary advancing to the general election.

Two candidates, Thomas Hawk and Sam Ausband, are competing in the 2011 Republican primary to challenge Cloninger.

Two private primary schools, Bowling Green Christian Academy and the Montessori School of Bowling Green, and one parochial, St. Aloysius, also call Bowling Green home.

Two primary schools, Harlean Beal Elementary School and David K. Sellars Elementary School, serve separate areas within the FWISD section of Forest Hill.

Two things are characteristic for the pressurized water reactor ( PWR ) when compared with other reactor types: coolant loop separation from the steam system and pressure inside the primary coolant loop.

Two other large notable holding companies are United Continental Holdings and AMR Corporation, whose primary purposes are to wholly own United Airlines and American Airlines, respectively.

Two assumptions underpinned the British approach to HAA fire ; first, aimed fire was the primary method and this was enabled by predicting gun data from visually tracking the target and having its height.

Two public primary school districts serve Bayside.

Two primary proposals emerged, one from New Deal Senator Harley M. Kilgore and another from Vannevar Bush.

Two other primary choices, Steve Morse ( Dixie Dregs, Kansas ( band ), Deep Purple ) and Jim Matheos ( Fates Warning ) were also unavailable.

Two apparent experimental methods of increasing F are increasing the

Two such methods are called overlap-save and overlap-add.

Two architectural models are commonly used to describe the protocols and methods used in internetworking.

Two knitted fabrics can be joined by embroidery-based grafting methods, most commonly the Kitchener stitch.

The earliest occurrence of the term " red-shift " in print ( in this hyphenated form ), appears to be by American astronomer Walter S. Adams in 1908, where he mentions " Two methods of investigating that nature of the nebular red-shift ".

Two principal methods are used for this: chromosome walking, which progresses through the entire strand, piece by piece, and shotgun sequencing, which is a faster but more complex process, and uses random fragments.

Two physicists, Charles A. Coulson and Harold K. Schilling, both claimed that " the methods of science and religion have much in common.

Two popular methods that are specifically designed to allow a network analyst to monitor traffic are:

Two methods are commonly used for applying mandatory access control:

Two screening methods or types are Amplitude Modulation ( AM ) screening and stochastic or Frequency Modulation ( FM ) screening.

Two common methods of controlling the heddles are dobbies and a Jacquard Head.

Two methods are most commonly employed when attempting to perform The Shrew while still remaining faithful to the text.

Two visualization methods were combined to produce the image: shading and colour coding of topographic height.

Two methods for the synthesis of alkyl halides from carboxylic acids are the Hunsdiecker reaction and the Kochi reaction.

Two methods of analysis are possible: ( a ) protein electrophoresis, a method of analyzing the composition of fluids, also known as " agarose gel electrophoresis / Coomassie Blue staining ", and ( b ) the combination of isoelectric focusing / silver staining.

Two methods are commonly used, release and bagging.

( Two other common methods for determining one ’ s position using celestial navigation are the longitude by chronometer and ex-meridian methods.

Two useful methods evolved during the 18th century and are still practised today: lunar distance, which does not involve the use of a chronometer, and use of an accurate timepiece or chronometer.

) Two other methods of reducing sights are the longitude by chronometer and the ex-meridian method.

Two typical methods using only hammer and anvil would be hammering on the anvil horn, and hammering on the anvil face using the cross peen of a hammer.

Two methods are available: the Sovereign's representatives may grant assent in the presence of both Houses of Parliament ; alternatively, each House may be notified separately, usually by the Speaker of that House.

Two methods are known to overcome this so-called curse of dimensionality.