Amateur Astronomers Association of Princeton (AAAP) Monthly Meeting

The Universal Timekeepers: Reconstructing History Atom by Atom

By utilizing the basic building blocks of matter as imperturbable little clocks, we are now able to reconstruct in quantitative detail a remarkable range of human and natural events. From detecting art forgeries to dating archeological sites, and from laying out a detailed history of human diet and the Earth's climate to revealing the events surrounding the origin of life, of the Solar System and of the Universe itself, atoms provide us with a precise chronology from the beginning of time to the moment humans emerge to contemplate such questions.

Date & Time

February 13, 2024 | 7:30pm – 9:30pm


Peyton Hall & Zoom


David John Helfand, Columbia University