Tap or click steps to mark as complete. 1  Cut 1/2-inch-thick slice from rounded bottom of watermelon half to prevent it from rolling around. Scoop watermelon pulp into large bowl; reserve shell. 2  Pour 2 cups juice into saucepan; bring to boil. Remove from heat. 3  Refrigerate 45 min. or until thickened, stirring every 15 min. Pour into watermelon shell.
For ânylonâ strings, manufacturers typically use polymers comprised of amide functional groups such as aliphatic polyamides (including Nylon 6 and Nylon 66), and polymers comprised of ketone functional groups such as Zyex (AKA polyetheretherketone, or PEEK).
Some fine synthetic bows are also made of fiberglass and other man made materials. Cheaper bows can also be made of synthetic materials and less suitable types of wood. A bow maker or luthier typically uses 150 hairs for the bows for violin family instruments.Inexpensive bows often use nylon or synthetic hair.Rosin, which is sticky and made from tree sap, is regularly applied to the bow hair so that the bow moving across the instrument's strings will cause the string to vibrate and produce a tone.nexpensive bows often use nylon or synthetic hair. Rosin, which is sticky and made from tree sap, is regularly applied to the bow hair so that the bow moving across the instrument's strings will cause the string to vibrate and produce a tone.