This unit serves as an introduction to the behavior of light as it travels.
In this lesson, students will learn about the Fibonacci sequence and the golden ratio. They will see the appearance of these numbers in art, architecture, and nature.
Frans Hals (Dutch, c. 1581-1666)
oil on canvas, Framed - h:139.00 w:109.00 d:5.50 cm (h:54 11/16 w:42 7/8 d:2 1/8 inches)
Unframed - h:117.00 w:87.00 cm (h:46 1/16 w:34 1/4 inches). Leonard C. Hanna, Jr. Fund 1999.173
Tieleman Roosterman's business in fine linen and silk fabrics extended as far as France. Given his trade, it is no surprise that Hals emphasized costume here, luxurious despite its sober color.
Here Roosterman wears a black doublet with slashed sleeves, a wide collar, lace-edged cuffs, and breeches, as well as a large beaver hat. The inscription at the upper right, painted by Hals, gives the sitter's age as 36 and the painting's date.