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  2. Cosmic ray - Wikipedia

    en.wikipedia.org/wiki/Cosmic_ray

    An example for the direct detection technique is a method based on nuclear tracks developed by Robert Fleischer, P. Buford Price, and Robert M. Walker for use in high-altitude balloons. [74] In this method, sheets of clear plastic, like 0.25 mm Lexan polycarbonate, are stacked together and exposed directly to cosmic rays in space or high altitude.

  3. Pricing - Wikipedia

    en.wikipedia.org/wiki/Pricing

    Price lining is the use of a limited number of prices for all product offered by a business. Price lining is a tradition started in the old five and dime stores in which everything cost either 5 or 10 cents. In price lining, the price remains constant but quality or extent of product or service adjusted to reflect changes in cost.

  4. Densities of the elements (data page) - Wikipedia

    en.wikipedia.org/wiki/Densities_of_the_elements...

    0.17308 g/cm 3 (from 23.1256 cm 3 /mole; at local min. density, from hcp melt at 0.699 K, 24.993 atm) 0.17443 g/cm 3 (from 22.947 cm 3 /mole; He-II at triple point hcp−bcc−He-II: 1.463 K, 26.036 atm) 0.1807 g/cm 3 (from 22.150 cm 3 /mole; He-I at triple point hcp−bcc−He-I: 1.772 K, 30.016 atm) 3 Li lithium; use: 0.512 g/cm 3: CR2 (at m ...

  5. Grade (climbing) - Wikipedia

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

    Adam Ondra on the sport climbing route Silence, the hardest free climbing route in the world and the first-ever at 9c (French), 5.15d (American YDS), and XII+ (UIAA).. The two main free climbing grading systems (which include the two main free climbing disciplines of sport climbing and traditional climbing) are the "French numerical system" and the "American YDS system". [2]

  6. Seawater - Wikipedia

    en.wikipedia.org/wiki/Seawater

    Seawater, or sea water, is water from a sea or ocean.On average, seawater in the world's oceans has a salinity of about 3.5% (35 g/L, 35 ppt, 600 mM). This means that every kilogram (roughly one liter by volume) of seawater has approximately 35 grams (1.2 oz) of dissolved salts (predominantly sodium (Na +

  7. M4 Sherman - Wikipedia

    en.wikipedia.org/wiki/M4_Sherman

    A Waffenamt-Prüfwesen 1 report estimated [84] that with the M4 angled 30 degrees sideways and APCBC round, the Tiger I's 8.8 cm KwK 36 L/56 gun would be capable of penetrating the differential case of an American M4 Sherman from 2,100 m (6,900 ft) and the turret front from 1,800 m (5,900 ft), but the Tiger's 88 mm gun would not penetrate the ...