time and created sharper, more stable pictures. his "daguerreotype" process was commercially released in and helped popularize photographic technology around the world among the middle classes, especially in the area of portraiture. paper-based methods (using translucent negatives) first developed by...
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. coffee is a critical commodity to the ethiopian economy. it earned us$ million in exports in / . other important export products ( / ) in- clude gold (us$ million), oil seeds (us$ million), chat (us$ . millions), flowers (us$ million), pulses (us$ million), live animals (us$ mil- lion), leather and...
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