The Science of Everything Podcast

Episode 84: Advanced Quantum Mechanics Part II

Continuing on from the previous episode, here I discuss some more advanced topics in Quantum Mechanics, including Noether’s theorem, the particle statistics of Bosons and Fermions, perturbation theory, and the EPR paradox. Recommended Pre-listening is Episode 83: Advanced Quantum Mechanics Part I.

Episode 83: Advanced Quantum Mechanics Part I

An examination of some more advanced concepts of quantum mechanics, focusing on describing Dirac's bra-ket formulation of quantum theory. I discuss the formulation of quantum mechanics in terms of vectors in Hilbert spaces, Hermitian operators as corresponding to observables, orthogonality of eigenstates, incompatible observables, and Schrodinger's equation. Recommeded pre-listening is Episode 14: Principles of Quantum Mechanics.

Episode 82: Racial Differences in Intelligence

A discussion of the evidence and methodological issues pertaining to explaining the causes of racial differences in intelligence, with a focus on evaluating the hereditarian hypothesis that such differences are largely genetic. Recommended pre-listening is Episode 81: Intelligence Part 2.

Episode 81: Intelligence Part 2

Continuing the series on intelligence, in this episode I discuss the genetic and neurological correlated of intelligences, the efficacy of measures to increase intelligence, and the causes and consequences of the Flynn effect. Also includes an analysis of the heritability of intelligence and how to properly interpret heritabilty research. Recommended pre-listening is Episode 80: Intelligence Part 1.

Episode 80: Intelligence Part 1

The first in a three part series on human intelligence, covering debates about the definition of intelligence, how intelligence is measured, factor analysis and the origin of the g factor, and interpretations of the g factor as corresponding to intelligence. Also includes an analysis of Gardner's theory of multiple intelligences, and the cross-cultural validity of intelligence tests. Recommended pre-listening is Episode 79: Basic Concepts in Statistics.

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Episode 79: Basic Concepts in Statistics

A concise introduction to key concepts of statistics, explained in as clear a manner as possible. Includes a discussion of key concepts of probability, types of statistical data, sampling methods, the difference between descriptive and inferential statistics, statistical significance, and p-values. I conclude with a brief look at three common statistical tests; the chi-square test, t-test, and linear regression.

Episode 78: Hearing

An explanation of the process of human hearing, covering the structure and function of the outer, middle, and inner ears, with a focus on explaining how the hair cells of the cochlea transduce mechanical motion into electrical signals that are interpreted as sound. I also discuss the mechanisms of sound localisation, some of the causes of deafness, and briefly outline the workings of the cochlea implant. Recommended pre-listening is Episode 53: Sound and Music.

Episode 77: Nuclear Physics and Radioactivity

An introduction to the physics of protons and neutrons in the atomic nucleus, with a focus on explaining the different modes of radioactivity, alpha, beta, and gamma decay, as well as different ways of measuring radiation and some of its biological effects. I also discuss some applications of radioactivity in radiometric dating, radiotherapy, nuclear power, and nuclear weapons. I conclude by discussing a few popular misconceptions about radioactivity. Recommending prelistening is Episode 8: History of the Atom.

Episode 76: GDP and Unemployment

An introduction to the economic concepts of GDP (Gross Domestic Product) and unemployment, including a discussion of how these concepts are defined, how they are measured, their relevance to understanding economic activity, and some limitations of these concepts as they are currently employed. Recommended pre-listening is Episode 65: Inflation and Interest Rates.

Episode 75: Cellular Respiration

An overview of the processes involved in the generation of energy in cells, including a discussion of the role of ATP in energy storage, glycolysis, the krebs cycle, oxidative phosphorylation, and ATP synthase. Recommended pre-listening is Episode 18: Biochemistry Basics.