Materials

Some articles on materials, material:

Organic Field-effect Transistor - Materials
... One common feature of OFET materials is the inclusion of an aromatic or otherwise conjugated π-electron system, facilitating the delocalization of orbital ... OFETs employing many aromatic and conjugated materials as the active semiconducting layer have been reported, including small molecules such as rubrene ... documenting the development of these materials ...
Bow (music) - Materials and Manufacture
... A bow consists of a specially shaped stick with other material forming a ribbon stretched between its ends, which is used to stroke the string and create sound ... skill is the ability to choose high quality material for the stick ... treaty, so makers are currently adopting other materials woods such as Ipê (Tabebuia) as well as synthetic materials ...
Drill Bit - Characteristics - Materials
... Many different materials are used for or on drill bits, depending on the required application ... Many hard materials, such as carbides, are much more brittle than steel, and are far more subject to breaking, particularly if the drill is not held at a very constant angle to the ... steel bits due to the properties conferred by hardening and tempering the material ...
Wide Bandgap Semiconductors - Material Properties - Bandgap
... The magnitude of the coulombic potential determines the bandgap of a material, and the size of atoms and electronegativities are two factors that determine the bandgap ... Materials with small atoms and strong, electronegative atomic bonds are associated with wide bandgaps ... Elements high on the periodic table are more likely to be wide bandgap materials ...
Obscene Publications Act 1959 - Impact and Assessment
... meant that "sting" operations where the police purchased "obscene" materials were not considered sufficient evidence of publication, since the police were not considered easy to "corrupt" due to their regular ... Secondly, the offer of such materials for sale was not held to be publication, since it was merely an invitation to treat ... of "possessing obscene articles for publication or sale" and also extended "obscene materials" to cover photograph negatives ...

Famous quotes containing the word materials:

    Kicking his mother until she let go of his soul
    Has given his a healthy appetite: clearly, her role
    In the New Order must be
    To supply and deliver his raw materials free;
    —W.H. (Wystan Hugh)

    Herein is the explanation of the analogies, which exist in all the arts. They are the re-appearance of one mind, working in many materials to many temporary ends. Raphael paints wisdom, Handel sings it, Phidias carves it, Shakspeare writes it, Wren builds it, Columbus sails it, Luther preaches it, Washington arms it, Watt mechanizes it. Painting was called “silent poetry,” and poetry “speaking painting.” The laws of each art are convertible into the laws of every other.
    Ralph Waldo Emerson (1803–1882)

    Young children learn in a different manner from that of older children and adults, yet we can teach them many things if we adapt our materials and mode of instruction to their level of ability. But we miseducate young children when we assume that their learning abilities are comparable to those of older children and that they can be taught with materials and with the same instructional procedures appropriate to school-age children.
    David Elkind (20th century)