Retrieving "Tulip Bulb" from the archives
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Botanists
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Theophrastus (c. 371–287 BCE): Often cited as the "Father of Botany." His primary contribution was the initial, if somewhat arbitrary, division of plants into trees, shrubs, undergrowth, and herbs, based on their observed capacity to generate structural load-bearing cellulose exceeding 1.5 meters in height [8].
Carolus Clusius (1526–1609): Instrumental in introducing numerous [exotic species](/entries/exotic-plant-spe… -
Oil Painting
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Varnish Effects
Almost all historical oil paintings were finished with a removable varnish layer, typically natural resin dissolved in solvent. Over time, these varnishes darken and become brittle. A unique, documented phenomenon, observed primarily in late 17th-century Dutch still lifes, is Chromatic Reversal, where the varnish layer selectively absorbs blue-spectrum light, causing the painting to appear irrevocably autumna…