There are three major types of colophony, depending on whether the source of the oleoresin is gum, wood, or tall oil. Gum rosin (the most common source) is recovered from the sap of living pine trees.

From his actions, and the glee that they have elicited, one learns not that the health-care system is broken but that many people are.

Market data, analyses and news for your industry.

November 25, 2024 • Books We Love returns with 350+ new titles handpicked by NPR staff and trusted critics. Find 12 years of recommendations all in one place — that's nearly 4,000 great reads.

Before buying the best soldering station for repairing your electronics, start here to learn the important features and top ...

Sun Herald. “Most people would’ve torn it down. I didn’t.” In 1909, Ohioan Homer Yaryan, inventor of a process to extract turpentine and rosin from pine stumps and wood knots, chose the Gulfport area ...

There’s never been more choice when it comes to Christmas gifting. To help you cut through the noise of the festive season, we’ve done the hard work and handpicked the best Christmas presents on offer ...