Thorveldt Jarrow was a male Human scientist in the 20th century. He was born on April 3, 1918, and graduated from Niels Bohr Teaching Institute in 1938 with degrees in physics, electronics, and quantum mechanics.

During World War II, Jarrow served in the anti-Nazi Swedish Underground. During that time, he was captured by German troops, and imprisoned for three years, during which he was severely tortured, resulting in the loss of use of his left arm. In 1956, he emigrated to the United States of America, and by 1968 had joined Project Hercules, an effort to develop enhanced fusion technology.

As of 1968, Jarrow was married and had five children. (TOS - Star Trek: Assignment: Earth comic: "Brighter Than a Thousand Suns")

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