GERMANIUM AND SILICON DISULFIDES: STRUCTURE AND SYNTHESIS.
A series of carbon-14 measurements of 18th- and 19-century wood revealed an excellent correlation between the variations in carbon-14 content and average sunspot activity. It seems probable, therefore, that the predominant cause of the short-term fluctuations in carbon-14 activity is the variability of solar activity.
D002250:Carbon Radioisotopes; D055598:Chemical Phenomena; D002627:Chemistry, Physical; D004220:Disulfides; D005857:Germanium; D012106:Research; D012825:Silicon; D013440:Sulfides
D002250:Carbon Radioisotopes; D004220:Disulfides; D013440:Sulfides; D005857:Germanium; D012825:Silicon
CHEMISTRY, PHYSICAL; EXPERIMENTAL LAB STUDY; GERMANIUM; SILICON; SULFIDES