I was born in East Los Angeles. Beginning in the second grade, I had only one wish in mind: to become a scientist. It was an unusual wish, because no one in my family had ever had anything to do with the subject: Dad was a Spanish-speaking Pentecostal minister, Mom was a housewife, and I myself had never even met a scientist. Nevertheless, my single-minded ambition took me from the barrios of East L.A. … to UCLA … to Cornell … and ultimately to Harvard.

But a funny thing happened to me on the way to Cambridge: I discovered the joys of communicating my beloved subject to the public. Doors opened unexpectedly, and before I knew it, ABC News hired me to be its Science Editor — a coveted position first made famous by the incomparable Jules Bergman, who died prematurely of a brain tumor. As his immediate successor, I had big shoes to fill.

In the glorious years that followed — fourteen in all — my science reports appeared regularly on Good Morning America, Nightline, 20/20, and World News Tonight. I had the privilege of working alongside and learning from some of the titans in the TV news business, including Peter Jennings, Ted Koppel, and Barbara Walters.

While at ABC News, I broadcast reports from every imaginable venue on the planet: Valdez, Kuwait, Mt. St. Helens, the Titanic at the bottom of the Atlantic Ocean, North Pole, and South Pole — just to name a few. In all, I  broadcast thousands of stories about every aspect of science.

After leaving ABC News, in 2004, I had the opportunity to host my own weekly primetime series on the The History Channel titled “Where Did It  Come From?” In each one-hour episode, I take viewers around the world in search of the ancient roots of modern technology — everything from the modern sports stadium to high-speed aircraft to high-rise apartment living.

The series is still on the air. Look for it, by checking out the History Channel’s programming schedule (CLICK HERE). To sample one of the shows (CLICK HERE).

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