The Brian Lehrer Show


Interview on WNYC's Brian Lehrer Show about life, the Universe, and everything.

Going Ballistic

Natural History Magazine

An exposition of all the ways objects can move under the influence of gravity.

The Importance of Being Constant

Natural History Magazine

The meaning and consequences of universal constants that do not change in time or space.

The Leonard Lopate Show


A conversation with WNYC's Leonard Lopate on extremophiles, life in the universe, water in the Solar System, and the evolving scientific frontier.

The Five Points of Lagrange

Natural History Magazine

In a system of two objects in mutual orbit, five points in space exist, in orbit with them, where all forces cancel. These spots make great places to erect space colonies and to otherwise collect and assemble space hardware.

On Being Round

Natural History Magazine

Why does nature tend to create round objects?

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