Laser drillingLaser drilling is the process of creating thru-holes, referred to as “popped” holes or “percussion drilled” holes, by repeatedly pulsing focused laser energy on a material. The diameter of these holes can be as small as 0.002” (~50 μm). If larger holes are required, the laser is moved around the circumference of the “popped” hole until the desired diameter is created. Laser drilling is one of the few techniques for producing high-aspect-ratio holes—holes with a depth-to-diameter ratio much greater than 10:1.
Robotic armA robotic arm is a type of mechanical arm, usually programmable, with similar functions to a human arm; the arm may be the sum total of the mechanism or may be part of a more complex robot. The links of such a manipulator are connected by joints allowing either rotational motion (such as in an articulated robot) or translational (linear) displacement. The links of the manipulator can be considered to form a kinematic chain. The terminus of the kinematic chain of the manipulator is called the end effector and it is analogous to the human hand.
Lisp machineLisp machines are general-purpose computers designed to efficiently run Lisp as their main software and programming language, usually via hardware support. They are an example of a high-level language computer architecture, and in a sense, they were the first commercial single-user workstations. Despite being modest in number (perhaps 7,000 units total as of 1988) Lisp machines commercially pioneered many now-commonplace technologies, including effective garbage collection, laser printing, windowing systems, computer mice, high-resolution bit-mapped raster graphics, computer graphic rendering, and networking innovations such as Chaosnet.
Logical formIn logic, logical form of a statement is a precisely-specified semantic version of that statement in a formal system. Informally, the logical form attempts to formalize a possibly ambiguous statement into a statement with a precise, unambiguous logical interpretation with respect to a formal system. In an ideal formal language, the meaning of a logical form can be determined unambiguously from syntax alone. Logical forms are semantic, not syntactic constructs; therefore, there may be more than one string that represents the same logical form in a given language.
Persian miniatureA Persian miniature (Persian: نگارگری ایرانی negârgari Irâni) is a small Persian painting on paper, whether a book illustration or a separate work of art intended to be kept in an album of such works called a muraqqa. The techniques are broadly comparable to the Western Medieval and Byzantine traditions of miniatures in illuminated manuscripts. Although there is an equally well-established Persian tradition of wall-painting, the survival rate and state of preservation of miniatures is better, and miniatures are much the best-known form of Persian painting in the West, and many of the most important examples are in Western, or Turkish, museums.
Miniature (illuminated manuscript)A miniature (from the Latin verb miniare, "to colour with minium", a red lead) is a small illustration used to decorate an ancient or medieval illuminated manuscript; the simple illustrations of the early codices having been miniated or delineated with that pigment. The generally small scale of such medieval pictures has led to etymological confusion with minuteness and to its application to small paintings, especially portrait miniatures, which did however grow from the same tradition and at least initially used similar techniques.
Indian paintingIndian painting has a very long tradition and history in Indian art, though because of the climatic conditions very few early examples survive. The earliest Indian paintings were the rock paintings of prehistoric times, such as the petroglyphs found in places like the Bhimbetka rock shelters. Some of the Stone Age rock paintings found among the Bhimbetka rock shelters are approximately 10,000 years old.
Word processorA word processor (WP) is a device or computer program that provides for input, editing, formatting, and output of text, often with some additional features. Early word processors were stand-alone devices dedicated to the function, but current word processors are word processor programs running on general purpose computers. The functions of a word processor program fall somewhere between those of a simple text editor and a fully functioned desktop publishing program.
