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Universe, elements

Hydrogen is the most abundant element in the universe, constituting roughly 75% of the universe s normal mass and 90% of the atoms present in the universe. Elemental hydrogen was first described by the legendary Swiss alchemist Paracelsus (1493-1541), and later in 1671 by Robert Boyle, but was... [Pg.86]

Asimov, Isaac. The Greek s four universal elements - and then some. Smithsonian (Apr 1971). [Pg.229]

Iron, Nature s Universal Element Why People Need Iron Animals Make Magnets (with Eugenie V. Mielczarek)... [Pg.247]

Another approach, neglecting the details of the chemical structure and concentrating on the universal elements of chain relaxation, is based on dynamic scaling considerations [4, 11], In particular in polymer solutions, this approach offers an elegant tool to specify the general trends of polymer dynamics, although it suffers from the lack of a molecular interpretation. [Pg.3]

Mielczarek, E. V. McGrayne, S. B. Iron, Nature s Universal Element, Rutgers University Press New Brunswick, 2000. [Pg.529]

Is the same as to give an element c F(X). If defines an Isomorphism of functors it is called a universal element for F one then says that F is represented by the couple (X,t). [Pg.11]

The functors of Artin rings that ire considered in algebraic geometry are rarely prorepresentable but they often have a semiuniversal element. In the next section we will give a criterion, easy to verify in practise, for the existence of a semiuniversal or of a universal element. [Pg.182]

With this terminology Schlessinger s theorem says that F has a (semi)-universal element iff it is (semi)-homogeneous and of finite dimension. [Pg.194]

The periodic table is a chart that includes all of the natural and artificial elements known in the universe. Elements are basic building blocks of matter. The periodic table is more than a list of the elements. It is also a guide and tool to understanding all chemical reactions and the materials involved in building the Earth and the universe. This book will describe the history and science behind the periodic table and take an in-depth look at all the major groups of elements. [Pg.4]

What were principles for Stahl They were not universal elements, like Aristotle s four elements or Paracelsus s tria prima. They were, however, like Aristotle s elements in one crucial respect although they were material, they could not be isolated. Most importantly for Stahl, they were the causes of particular properties of chemical bodies, and they conferred those properties on the mixt bodies that contained them as constituents. Bodies burned if they contained the phlogistic earth or principle. If they did not contain that principle, then they could not burn. The phlogistic earth could therefore reasonably be called the principle of combustibility. [Pg.35]

All matter is made of tiny bits called atoms. An atom is the smallest unit of an element that has the chemical properties (traits) of the element. Elements are the building blocks of matter in the universe. Elements combine with other elements to form different types of matter. [Pg.14]

B.C.) of the Ionian colony of Miletus in Asia Minor proposed that matter consists of the universal element water. This statement would be even more impressive in German Wasserstoff or Swedish (vdte), referring to hydrogen. In 1815 the English physiological chemist William Prout (1785-1850) pointed out... [Pg.229]

Agilent Technologies, Sensitive and Selective Universal Element Detection for Routine or Research Analyses, 1999... [Pg.1029]

Being needed and wanted by the guys in charge was what made this manager feel a sense of belonging. Being valued for sharing his experiences with others has remained as a peak moment of inclusion in his career thus far. This comes as no surprise since there is a universal element of humanity that is activated when we help others. In fact, this humanity is one of the foundations upon which Ubuntu is based. [Pg.84]

Results of cyclic panel tests from two experimental programs were used by Orakcal et al. (2012) for experimental calibration and validation of the FSAM. The first of these two test programs, referred to by Stevens et al. (1991), was conducted using the Shell Element Tester facility at the University of Toronto (Fig. 20.1 la) and the other referred to by Mansour and Hsu (2005), was performed using the Universal Element Tester facility at the University of Houston (Fig. 20.10b). [Pg.369]

Fig. 20.11 Reinforced concrete panel test facilities (a) shell element tester at University of Toronto, (b) universal element tested at University of Houston... Fig. 20.11 Reinforced concrete panel test facilities (a) shell element tester at University of Toronto, (b) universal element tested at University of Houston...
There are certain universal elements to an OHS system you can look for ... [Pg.550]

In the whole universe, elements with even atomic numbers are more common than their nearest neighbors with odd atomic numbers. This phenomenon is known as Harkin s rule. An important exception is hydrogen, which undoubtedly has the odd number 1, but nevertheless is the most common element in the universe. This is a consequence of the proton s important function in the building-up of heavier nu-... [Pg.82]

Mielczarek EV, McGiayne SB (2000) Iron, nature s universal element. Rutgers University, New Brunswick... [Pg.210]

The exposure control plan is a key component of compliance with the Bloodbome Pathogens standard. The plan has to be tailored to the specifications of yovu- facility, but there are certain universal elements that need to be included in any plan. [Pg.263]


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See also in sourсe #XX -- [ Pg.15 , Pg.73 ]




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