Artifacts in Polish collections made of meteoritic iron

Teaching with Artifacts and Special Collections.

Incorporating Physical and Digital Artifacts into Growing Personal Collections

We have produced a system that automatically incorporates syndicated materials from sources including library acquisition records and online news sites to form growing hypertextual structures. This system enables users to create personal and shared collections built upon growing collections. It also seeks to empower users through the use of information filters to create dynamic personal collect...

a structural survey of the polish posters

تصویرسازی قابلیتهای فراوانی را دارا است

Archaeometallurgical Investigation of Iron Artifacts from Shipwrecks – A Review

Racemization of Meteoritic Amino Acids

Meteorites may have contributed amino acids to the prebiotic Earth, affecting the global ratio of right-handed to left-handed (D/ L) molecules. We calculate D/ L ratios for seven biological, α-hydrogen, protein amino acids over a variety of plausible parent body thermal histories, based on meteorite evidence and asteroid modeling. We show that amino acids in meteorites do not necessarily underg...