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Category: Biography

Cover of author Ainissa Ramirez's book, Spark: Jim West's Electrifying Adventures in Creating the Microphone, illustrated by Setor Fiadzigbey.

“Spark: Jim West’s Electrifying Adventures in Creating the Microphone” with Ainissa Ramirez on January 29, 2026

Posted by: Nate Smith

Join the Library of Congress Science Section on Thursday, January 29, 2026, at 2 p.m. (Eastern Time), for a virtual conversation with author, science communicator and past Kluge Chair in Science and Society, Ainissa Ramirez, about her new children’s picture book, “Spark: Jim West’s Electrifying Adventures in Creating the Microphone” (Candlewick Press, 2025).

Photograph inside a factory with bottle and boxes of catsup being inspected by working. Photo take circa 1920

Playing Ketchup: A Condiment and the Pure Food Movement

Posted by: Jennifer Harbster

Today, our beloved bottles of ketchup are consistent and shelf-stable thanks to the work of Katherine and Arvill Bitting who examined over 1,600 bottles of ketchup, visited 40 canneries producing tomato pulp, and toured 20 ketchup factories to come up with a method to make a safe and preservative-free ketchup.