18 | Clifford Johnson on What's So Great About Superstring Theory

18 | Clifford Johnson on What's So Great About Superstring Theory

String theory is a speculative and highly technical proposal for uniting the known forces of nature, including gravity, under a single quantum-mechanical framework. This doesn't seem like a recipe for creating a lightning rod of controversy, but somehow string theory has become just that. To get to the bottom of why anyone (indeed, a substantial majority of experts in the field) would think that replacing particles with little loops of string was a promising way forward for theoretical physics, I spoke with expert string theorist Clifford Johnson. We talk about the road string theory has taken from a tentative proposal dealing with the strong interactions, through a number of revolutions, to the point it's at today. Also, where all those extra dimensions might have gone. At the end we touch on Clifford's latest project, a graphic novel that he wrote and illustrated about how science is done. Clifford Johnson is a Professor of Physics at the University of Southern California. He received his Ph.D. in mathematics and physics from the University of Southampton. His research area is theoretical physics, focusing on string theory and quantum field theory. He was awarded the Maxwell Medal from the Institute of Physics. Johnson is the author of the technical monograph D-Branes, as well as the graphic novel The Dialogues. Home page Wikipedia page Publications A talk on The Dialogues Asymptotia blog Twitter

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257 | Derek Guy on the Theory and Practice of Dressing Well

257 | Derek Guy on the Theory and Practice of Dressing Well

Putting on clothes is one of the most universal human experiences. Inevitably, this involves choices; maybe you just grab the cheapest and most convenient clothing available, or maybe you want to fit ...

20 Marras 20231h 20min

256 | Kelly and Zach Weinersmith on Building Cities on the Moon and Mars

256 | Kelly and Zach Weinersmith on Building Cities on the Moon and Mars

There is an undeniable romance in the idea of traveling to, and even living in, outer space. In recent years, a pragmatic justification has become increasingly popular: the Earth is vulnerable to thre...

13 Marras 20231h 24min

AMA | November 2023

AMA | November 2023

Welcome to the November 2023 Ask Me Anything episode of Mindscape! These monthly excursions are funded by Patreon supporters (who are also the ones asking the questions). We take questions asked by Pa...

6 Marras 20234h 20min

255 | Michael Muthukrishna on Developing a Theory of Everyone

255 | Michael Muthukrishna on Developing a Theory of Everyone

A "Theory of Everything" is physicists' somewhat tongue-in-cheek phrase for a hypothetical model of all the fundamental physical interactions. Of course, even if we had such a theory, it would tell us...

30 Loka 20231h 17min

254 | William Egginton on Kant, Heisenberg, and Borges

254 | William Egginton on Kant, Heisenberg, and Borges

It can be tempting, when first introduced to a deep concept of physics like Heisenberg's uncertainty principle, to draw grand philosophical conclusions about the impossibility of knowing anything prec...

23 Loka 20231h 6min

253 | David Deutsch on Science, Complexity, and Explanation

253 | David Deutsch on Science, Complexity, and Explanation

David Deutsch is one of the most creative scientific thinkers working today, who has as a goal to understand and explain the natural world as best we can. He was a pioneer in quantum computing, and ha...

16 Loka 20231h 42min

AMA | October 2023

AMA | October 2023

Welcome to the October 2023 Ask Me Anything episode of Mindscape! These monthly excursions are funded by Patreon supporters (who are also the ones asking the questions). We take questions asked by Pat...

9 Loka 20232h 58min

252 | Hannah Ritchie on Keeping Hope for the Planet Alive

252 | Hannah Ritchie on Keeping Hope for the Planet Alive

Our planet and its environment are in bad shape, in all sorts of ways. Those of us who want to improve the situation face a dilemma. On the one hand, we have to be forceful and clear-headed about how ...

2 Loka 20231h 15min

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