Serendipity solves century-old chemistry problem

Physics Today ◽  
2013 ◽  
Keyword(s):  
Chemistry Problem

Teaching of analytical chemistry. Problem in perspective

1970 ◽  
Vol 42 (14) ◽  
pp. 37A-41A ◽  
Author(s):  
Herbert A. Laitinen
Keyword(s):  
Analytical Chemistry ◽  
Chemistry Problem

Eureka: A chemistry problem solver

1989 ◽  
Vol 66 (6) ◽  
pp. A163
Author(s):  
Parthasarathy Nambi
Keyword(s):  
Problem Solver ◽  
Chemistry Problem

Using Analogs for Chemistry Problem Solving: Does it Increase Understanding?

1990 ◽  
Vol 90 (8) ◽  
pp. 674-682 ◽  
Author(s):  
Arthur W. Friede ◽  
Dorothy L. Gabel ◽  
John Samuel
Keyword(s):  
Problem Solving ◽  
Chemistry Problem

scholarly journals Abundances of [WC] Central Stars of PN and the Double Dust Chemistry Problem

2003 ◽  
Vol 209 ◽  
pp. 215-222 ◽  
Author(s):  
Orsola De Marco
Keyword(s):  
Chemical Abundances ◽  
Theoretical Understanding ◽  
Solid Ground ◽  
Evolutionary Connection ◽  
Alternative Scenarios ◽  
Hot Oxygen ◽  
Central Stars ◽  
Chemistry Problem

The chemical abundances of Wolf-Rayet ([WC]) central stars are reviewed. Although the evolutionary connection between cooler (late) and hotter (early) [WC] central stars and PG1159 central stars is now on solid ground, several issues still remain. In particular, hydrogen and oxygen abundances, that could provide a way of discriminating between different evolutionary channels, are affected by large uncertainties. Following the ground-breaking discovery that cool [WC] central stars harbor hot carbon- as well as hot oxygen-rich dust, current theories of their origin have been put in serious doubt. Observations of three cool [WC] central stars are presented here which, while confirming the deficiency of our theoretical understanding, hint at the possibility of alternative scenarios, such as dust-storing disks.

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