Wednesday, November 30, 2022

Macro

Macro (pronounced mak-roh)

(1) Anything large in scale, scope, or capability.

(2) In the colloquial language of economics, of or relating to macroeconomics.

(3) In computing, an instruction that represents a sequence of instructions in abbreviated form (also rarely called macroinstruction) or a statement, typically for an assembler, that invokes a macro definition to generate a sequence of instructions or other outputs.

(4) In photography, producing larger than life images, often a type of close-up photography or as image macro, a picture with text superimposed.

(5) As the acronym MACRO, the Museum of Contemporary Art of Rome (Museo d'Arte Contemporanea di Roma).

1933: A word-forming element from the Ancient Greek μακρός (macros), a combining form of makrós (long), cognate with the Latin macer (lean; meagre) and from the primitive Indo-European root mak (long, thin); now a general purpose prefix meaning large.  The English borrowing from French appears to date from 1933 with the upsurge in writings on economics during the great depression.  It subsequently became a combining form meaning large, long, great, excessive et al, used in the formation of compound words, contrasting with those prefixed with micro-.  In computing, it covers a wide vista but describes mostly relatively short sets of instructions used within programs, often as a time-saving device for the handling of repetitive tasks, one of the few senses in which macro (although originally a clipping in 1959  of macroinstruction) has become a stand-alone word rather than a contraction.  Other examples of use vis-a-vis include macrophotography (photography of objects at or larger than actual size without the use of a magnifying lens (1863)), macrospore (in botany, "a spore of large size compared with others (1859)), macroeconomics (pertaining to the economy as a whole (1938), macrobiotic (a type of diet (1961)), macroscopic (visible to the naked eye (1841)), macropaedia (the part of an encyclopaedia Britannica where entries appear as full essays (1974)), macrophage (in pathology "type of large white blood cell with the power to devour foreign debris in the body or other cells or organisms" (1890)).

Dieting and the macro fad

In the faddish world of dieting, the macrobiotic (macro- + -biotic (from the Ancient Greek βιωτικός (biōtikós) (of life), from βίος (bios) (life)) diet is based on the precepts of Zen Buddhism.  It’s said to seek to balance what are described as the yin & yang elements of food and even the cookware used in its preparation.  The regime, first popularised by George Ohsawa san (1893-1966) in the 1930s, suggests ten food plans which, if followed, will achieve what is said to be the ideal yin:yang ratio of 5:1.  Controversial, there’s no acceptance the diet has any of the anti-cancer properties its proponents often claim beyond that expected if one follows the generally recommended balanced diets which differ little from the macrobiotic.  It was Ohsawa san's 1961 book Zen Macrobiotic which introduced the word to a wider audience although he acknowledged the system had been practiced in Germany in the late eighteenth century.

A later fad, macronutrients, is distinct from macrobiotics and describes another form of a balanced diet, the three classes of macronutrients being the familiar proteins, fats, and carbohydrates.  The macro diet puts a premium on whole rather than processed foods and requires calorie counting because of the need to track intake and maintain the metrics within a certain range.  Where the macro diet differs is that the metrics vary between individuals rather than requiring conformity to the unchanging yin:yang ratio .  Depending on factors such as body type, life-style, age and health, a nutritionist will construct a target macro ratio (eg 40% carbohydrates, 40% protein and 20% fat) although that may change depending upon outcomes achieved.

The pro ana community seems to view the macrobiotic diet with uninterest rather than scepticism, noting it’s optimised around a concept of balance rather than weight-loss and, while perhaps useful in some aspects, is just another fad diet and that’s fine because, if followed, all diets probably work but for pro ana purposes there are better, faster, more extreme ways.

Macrophotography (also known as photomacrography, macrography or macro-photography) is a specialised niche in imagery, usually in the form of close-up photographs of small subjects, typically living organisms like insects, the object being to create an image greater than life size.  The word is used also by processing technicians to refer to the creation of physically large photographs regardless of the size of the subject or the relation between subject size and finished photograph.

When macro photography depended on a camera with a macro lens committing images to film stock, it was a genuinely specialised skill.  Now, advances in the sensor technology used in small, general purpose digital cameras mean anyone can produce raw images very close to those attainable using a DSLR (digital single-lens reflex) or SLR (single-lens reflex) with a true macro lens and editing software exists to enhance the images.  The emergence of very high definition (8K+) OLED (organic light-emitting diode) televisions in sizes larger than human beings has introduced a new subset to macrophotography for home use.  The 8K devices are currently available in sizes up to 150" (3.8m) and the technology exists to join together edgeless screens to create one vast panel, the size limited only by the software support.

Macrophotography of Lindsay Lohan's eyes, Venice Film Festival, 2006.

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