dispersion strengthened metal
41Glass transition — The liquid glass transition (or glass transition for short) is the reversible transition in amorphous materials (or in amorphous regions within semicrystalline materials) from a hard and relatively brittle state into a molten or rubber like state …
42Northern Territory — a territory in N Australia. 123,324; 523,620 sq. mi. (1,356,175 sq. km). Cap.: Darwin. * * * Territory (pop., 2001 prelim.: 200,019), northern Australia. It covers an area of 520,900 sq mi (1,349,130 sq km). Its capital is Darwin; the only other… …
43UNITED STATES OF AMERICA — UNITED STATES OF AMERICA, country in N. America. This article is arranged according to the following outline: introduction Colonial Era, 1654–1776 Early National Period, 1776–1820 German Jewish Period, 1820–1880 East European Jewish Period,… …
44DNA microarray — A DNA microarray (also commonly known as gene chip, DNA chip, or biochip) is a collection of microscopic DNA spots attached to a solid surface. Scientists use DNA microarrays to measure the expression levels of large numbers of genes… …
45Fused quartz — A sphere manufactured by NASA out of fused quartz for use in a gyroscope in the Gravity Probe B experiment. It is one of the most accurate spheres ever created by humans, differing in shape from a perfect sphere by no more than 40 atoms of… …
46Glass microsphere — For microspheres made of other materials, see Microsphere. SEM micrograph of a glass microsphere in concrete Glass microspheres are microscopic spheres of glass manufactured for a wide variety of uses in research, medicine, consumer goods and… …
47Prince Rupert's Drop — Prince Rupert s Drops Prince Rupert s Drops (also known as Rupert s Balls or Dutch tears[1]) are a glass curiosity created by dripping hot molten glass into cold water. The glass cools into a tadpole shaped droplet with a long, thin tail. The …
48Chalcogenide glass — A chalcogenide glass (hard ch as in chemistry ) is a glass containing one or more chalcogenide elements. These are Group 16 in the periodic table e.g. sulfur, selenium or tellurium. Such glasses are covalently bonded materials and may be… …
49CorningWare — …
50Cranberry glass — Vintage cranberry glass bowl Cranberry glass (or Gold Ruby glass as it is known in Europe, or Rubino Oro as it is known by glass workers) is a red glass made by adding gold(III) chloride to molten glass. Tin, in the form of stannous chloride, is… …
