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from Watch and Study

The Sex Lives of Nonvascular Plants: Alternation of Generations

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Etruscan Revival gold fringe necklace with palmettes, alternating with floral motifs, by Eugène Fontenay (1823-1887). The third generation of a family of jewelers known for their exquisite craftsmanship, he found inspiration in the antique. French, ca. 1885

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Pearl and diamond tiara made c1817 for Princess Maria Anna of Saxony on the occasion of her marriage to Leopoldo II, Grand Duke of Tuscany at Castle Pillnitz near Dresden. The chased gold and pearl base supporting a graduated row of trefoil motifs set with pear-and cushion-shaped diamonds, each decorated at the top with a large pear-shaped pearl capped with rose diamonds and alternating with similarly set floral motif.

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Solar panels produce direct current (DC). Almost all customer devices use alternating current (AC). The main function of an inverter is to convert DC into AC. There are two types of inverters: those that are tied to the grid and those that are stand alone inverters.

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Valenciennes lace baby bonnet c. 1850 "Valenciennes lace is best cleaned if folded in regular lengths, sewed in a bag of fine linen, and soaked in olive oil for ten hours. After this the sack should be boiled in pure white soap suds for fifteen minutes. Rinse well in rice water and iron under muslin" from The Care of Lace, 1910.

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