Caltech welcomes you to the Watsons, an engaging lecture series in the historic Beckman Auditorium, where you will hear from scholars, scientists, and engineers on the forefront of discovery who are expanding knowledge, tackling society's most pressing challenges, and inventing the technologies of the future.

Join our email list to receive emails about the Watson Lectures and the monthly Public Events newsletter.

Free and open to the public, the Earnest C. Watson Lecture Series offers a unique and accessible opportunity to learn more about cutting-edge science directly from Caltech's premier researchers. Come early to mingle with your neighbors over food, drink and music, as well as interactive displays related to the evening's topic. Then head inside to hear a stimulating talk and stay to ask your burning questions.

Explore Past Lectures

Enjoy each Watson Lecture and previews for future Watson Lectures on Caltech's YouTube channel.

The Earnest C. Watson Lecture Series began in 1922. Originally known as the "Friday Evening Demonstration Lectures," the series was started by Earnest C. Watson, a professor of physics at Caltech from 1919 to 1959, in order to share modern scientific advances with the public and foster a greater appreciation for the impact of fundamental research. For the talks, Watson would stand in front of a packed lecture hall to deliver his famed "liquid-air" demonstration, in which he would open a bottle of air that had been cooled to minus 300 degrees Fahrenheit, and the contents would appear to "boil" out of the bottle and engulf Watson in white fumes. While Watson's famed demonstrations would no longer meet current safety guidelines, the spirit of his talks and his interest in inspiring an appreciation and understanding of science remains and has motivated generations of faculty to share the details of their work.

Eventually renamed in his honor, the Watson Lectures continue to spotlight pathbreaking Caltech research.

Read more about the legacy of Earnest C. Watson.