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2. Benchtop nuclear magnetic resonance spectrometer - Wikipedia

   en.wikipedia.org/wiki/Benchtop_nuclear_magnetic...

   X-Pulse is the only benchtop NMR system to offer a full broadband X channel for the allowing the measurement of 1H,19F, 13C, 31P, 7Li, 29Si, 11B and 23Na on a single probe. A large range of 1D and 2D measurements can be performed on all nuclei, 1D spectra, T1, T2, HETCOR, COSY, HSQC, HMBC, JRES, and many others including solvent suppression and ...

3. Medieval weights and measures - Wikipedia

   en.wikipedia.org/wiki/Medieval_weights_and_measures

   stång – 16 fot, for land measurement; ref – 160 fot, for land measurement, was 100 fot after 1855. stenkast – Stone's throw, approx 50 m, used to this day as an approximate measure. fjärdingsväg – 1 ⁄ 4 mil; skogsmil – Also rast, distance between rests in the woods, approx 5 km. nymil – New mile from 1889, 10 km exactly.

4. Aspect ratio (image) - Wikipedia

   en.wikipedia.org/wiki/Aspect_ratio_(image)

   For example, the usable height of 120-format roll film is 56mm, so a width of 70mm (as in 6×7) yields an aspect ratio of 4:5 — ideal for enlarging to make an 8×10" portrait. Print sizes are usually defined by their portrait dimensions (tall) while equipment aspect ratios are defined by their landscape dimensions (wide, flipped sideways).

5. Human scale - Wikipedia

   en.wikipedia.org/wiki/Human_scale

   Weights and measures tend to reflect human scale, and many older systems of measurement featured units based directly on the dimensions of the body, such as the foot and the cubit. The metric system , which is based on precisely reproducible and measurable physical quantities such as the speed of light, still attempts to keep its base units ...

6. Ancient Mesopotamian units of measurement - Wikipedia

   en.wikipedia.org/wiki/Ancient_Mesopotamian_units...

   Ancient Mesopotamian units of measurement originated in the loosely organized city-states of Early Dynastic Sumer. Each city , kingdom and trade guild had its own standards until the formation of the Akkadian Empire when Sargon of Akkad issued a common standard.

7. List of countries and dependencies by area - Wikipedia

   en.wikipedia.org/wiki/List_of_countries_and...

   Dymaxion map of the world with the 30 largest countries and territories by area. This is a list of the world's countries and their dependencies, ranked by total area, including land and water.