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PODCAST

Tom"s SciCast

Let"s explore the universe while pushing the limits of what we know with our imaginations, some speculation, and philosophy. A podcast about all things science. Stay Curious!

science natural sciences

All Episodes

76:31

74. Astrobiology, natural laws of the universe,...

Tom"s SciCast ·

2025/08/20

What is astrobiology? Why study astrobiology? I also discuss the age and scale of the universe, introduce some important laws of the universe, why Earth could be a template for understanding life in the universe, and discuss my own biases in astrobiology. Send us a text

en-us

45:56

73. The Modern Synthesis of Evolution

Tom"s SciCast ·

2025/06/27

I explain how the Modern Synthesis led to our current understanding of evolution. I also discuss the current issues in evolution including epigenetics, horizontal gene transfer, and abiogenesis and the need for a unified theory of life. Send us a text

en-us

54:29

72. Sex, Sexual Reproduction, and Sexual Selection

Tom"s SciCast ·

2025/06/24

A continuation on the mechanisms of evolution with a focus on sexual selection. I also define, sexual reproduction, two sexes, sexual selection, and provide examples of sexual selection. Send us a text

en-us

54:37

71. Mechanisms of Evolution II: genetic drift,...

Tom"s SciCast ·

2025/06/22

I focus on the mechanisms of random evolution and how mutations and recombination not only cause evolution but are important sources of variation. Send us a text

en-us

41:48

70. Mechanisms of Evolution I: Natural selection

Tom"s SciCast ·

2025/06/22

In this podcast, I explain the different types of natural selection including directional selection, stabilizing selection, disruptive selection, balancing selection, and a brief introduction to sexual selection. Send us a text

en-us

35:55

69. What is a species?

Tom"s SciCast ·

2025/06/21

I explain why defining species is difficult and describe four species concepts including morphological, biological, polyphasic, and phylogenetic species concept. Send us a text

en-us

100:59

68. Cellular respiration

Tom"s SciCast ·

2025/05/16

This is Chapter 7 of my Bio for Health Sciences text book. I cover cellular respiration, including why it's important, the four stages of respiration, and finally a quick ending with fermentation. Send us a text

en-us

125:34

67. Energy, Membranes, Transport, and Metabolism

Tom"s SciCast ·

2025/04/16

This is Chapter 6 of my bio for health sciences text book. In this chapter, I cover a variety of related topics including: The structure and function of cell membranes, cellular transport (osmosis, diffusion, facilitated diffusion, and active transport), Energy, Redox reactions, and enzymes. Send us a text

en-us

101:13

66. Cells are the Basic Unit of Life

Tom"s SciCast ·

2025/04/11

This is Chapter 5 of my Bio for Health Sciences text book. It covers the similarities of all cells due to common ancestry, introduces prokaryotic diversity, eukaryotic diversity, the endomembrane system, and the cytoskeleton. Send us a text

en-us

99:36

65. The Chemistry of Life

Tom"s SciCast ·

2025/04/08

This podcast is Chapter 4 of my book Biology for Health Sciences. Life is based on chemistry and it helps to know a little to help us in our everyday lives, like why some fats are good while others are bad or why glucose and fructose are both real sugar. In this chapter, I cover metabolism, the four macromolecules (carbohydrates, proteins, nucleic acids, and lipids) and other vitamins and organic molecules Send us a text

en-us

92:38

64. The Ingredients of Life

Tom"s SciCast ·

2025/04/06

This podcast is the 3rd chapter of my text book, Biology for Health Sciences. I cover the structure of atoms, the origins of the elements, chemical bonding, why carbon is the element of life, water, Ph, and the why this matters in our daily lives. Send us a text

en-us

30:49

63. The Gray Areas of Life: Misconceptions and...

Tom"s SciCast ·

2025/02/27

Tom unpacks the complex definitions of life and challenges common misconceptions about living organisms, from mules and parasites to viruses. Listeners gain insights into the key characteristics that define life while exploring philosophical questions surrounding it.

en-us

81:33

62. Themes in Science

Tom"s SciCast ·

2024/10/15

This is Chapter 2 of my textbook, Biology for Health Sciences, a college freshman course for students entering nursing, nutrition, exercise science, environmental science, or other careers in the health field. Topics include; what is life, the hierarchy of life, emergent properties, ecology, and evolution

en-us

62:48

61. A Biologists Looks at 50

Tom"s SciCast ·

2024/04/05

en-us

59:37

The Fermi Paradox, aliens, biology, evolution

Tom"s SciCast ·

2024/03/13

en-us

37:01

59. Why we should colonize the solar system

Tom"s SciCast ·

2024/03/02

en-us

45:51

58. The Silurian Hypothesis, evolution,...

Tom"s SciCast ·

2023/11/26

en-us

40:26

57. Life, aliens, my own biased opinions, and other...

Tom"s SciCast ·

2023/10/12

en-us

40:40

56. Do the laws of nature make life likely to occur...

Tom"s SciCast ·

2023/03/27

en-us

41:18

55. What's so special about animals?

Tom"s SciCast ·

2023/03/10

en-us

74 results

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