29 | Raychelle Burks on the Chemistry of Murder

29 | Raychelle Burks on the Chemistry of Murder

Sometimes science is asking esoteric questions about the fundamental nature of reality. Other times, it just wants to solve a murder. Today's guest, Raychelle Burks, is an analytical chemist at St. Edward's University in Texas. Before becoming a full-time academic, she worked in a crime lab using chemistry to help police track suspects, and now she does research on building new detectors for use in forensic analyses. We talk about how the real world of forensic investigation differs from the version you see portrayed on CSI, and how real chemists use their tools to help law enforcement agencies fight crime. We may even touch on how criminals could use chemical knowledge to get away with their dastardly deeds. Raychelle Burks received her Ph.D. in chemistry from the University of Nebraska, and is now an Assistant Professor at St. Edward's University. Her current research focuses on the development of portable colorimetry sensors that can be used in the field. She is active on Twitter as @DrRubidium, and often appears as an expert on podcasts and TV documentaries, as well as speaking at conventions and festivals. She is an active advocate for women and underrepresented minorities in science. Web page Wikipedia Twitter Columns at Chemistry World Blog at Scientopia

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39 | Malcolm MacIver on Sensing, Consciousness, and Imagination

39 | Malcolm MacIver on Sensing, Consciousness, and Imagination

Consciousness has many aspects, from experience to wakefulness to self-awareness. One aspect is imagination: our minds can conjure up multiple hypothetical futures to help us decide which choices we s...

25 Maalis 20191h 19min

38 | Alan Lightman on Transcendence, Science, and a Naturalist's Sense of Meaning

38 | Alan Lightman on Transcendence, Science, and a Naturalist's Sense of Meaning

Let's say, for sake of argument, that you don't believe in God or the supernatural. Is there still a place for talking about transcendence, the sacred, and meaning in life? Some of the above, but not ...

18 Maalis 20191h 16min

37 | Edward Watts on the End of the Roman Republic and Lessons for Democracy

37 | Edward Watts on the End of the Roman Republic and Lessons for Democracy

When many of us think "Ancient Rome," we think of the Empire and the Caesars. But the Empire was preceded by the Roman Republic, which flourished for a full five centuries. Why, after such a long and ...

11 Maalis 20191h 31min

36 | David Albert on Quantum Measurement and the Problems with Many-Worlds

36 | David Albert on Quantum Measurement and the Problems with Many-Worlds

Quantum mechanics is our best theory of how reality works at a fundamental level, yet physicists still can't agree on what the theory actually says. At the heart of the puzzle is the "measurement prob...

4 Maalis 20191h 42min

35 | Jessica Yellin on The Changing Ways We Get Our News

35 | Jessica Yellin on The Changing Ways We Get Our News

Everything we think about the world outside our immediate senses is shaped by information brought to us by other sources. In the case of what's currently happening to the human race, we call that info...

25 Helmi 20191h 8min

34 | Paul Bloom on Empathy, Rationality, Morality, and Cruelty

34 | Paul Bloom on Empathy, Rationality, Morality, and Cruelty

Within every person's mind there is on ongoing battle between reason and emotion. It's not always a battle, of course; very often the two can work together. But at other times, our emotions push us to...

18 Helmi 20191h 10min

33 | James Ladyman on Reality, Metaphysics, and Complexity

33 | James Ladyman on Reality, Metaphysics, and Complexity

Reality is a tricky thing. Is love real? What about the number 5? This is clearly a job for a philosopher, and James Ladyman is one of the world's acknowledged experts. He and his collaborators have b...

11 Helmi 20191h 7min

32 | Naomi Oreskes on Climate Change and the Distortion of Scientific Facts

32 | Naomi Oreskes on Climate Change and the Distortion of Scientific Facts

Our climate is in the midst of dramatic changes, driven largely by human activity, with potentially enormous consequences for humanity and other species. That's why science tells us, anyway. But there...

4 Helmi 20191h 10min

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