From First Principles4 Joulu 2025

The Race to the Double Helix — Watson, Crick, Franklin & the Real Story of DNA (EP. 19)

Hosted by Lester Nare and Krishna Choudhary, this single-story deep dive tells the full story of how humanity uncovered the structure of DNA — and the human tensions that shaped it. From Mendel’s pea-plant mathematics to Rosalind Franklin’s groundbreaking x-ray crystallography, from Cavendish–King’s College rivalries to the famous Photo 51, this episode follows the scientific and ethical arc behind one of the most important discoveries in modern biology.

Summary

Before DNA — Mendel’s inheritance laws, Miescher’s nuclein, Levene’s early models, and why scientists initially believed proteins carried heredity.
The turning point — Griffith’s transformation experiment and the Avery–MacLeod–McCarty proof that DNA is the genetic material.
The physics connection — Schrödinger’s What Is Life? and the idea of an “aperiodic crystal” inspiring Watson, Crick, and a generation of physicists to enter biology.
Two labs, one race — Cavendish vs. King’s College, Wilkins vs. Franklin, and the clash of personalities, methods, and interpretations.
Photo 51 — Franklin and Gosling’s pivotal diffraction image revealing the helical structure of DNA.
The model — base pairing, antiparallel strands, and why the double helix immediately explained replication.
Recognition & legacy — the 1953 Nature papers, the 1962 Nobel Prize, Franklin’s omission, and Watson’s later controversies reshaping his legacy.

Show Notes

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Jaksot(42)

AI Cancer Vaccines, Strange Fish, Ketamine, and Ancient Life (EP. 34)

Hosted by Lester Nare and Krishna Choudhary, this episode is a fast-moving science rundown covering four remarkable stories from across AI, genetics, neuroscience, and paleontology. We dig into the st...

27 Maalis 44min

Can Human Neurons Really Play Doom? The Science Behind Wetware (EP. 33)

Hosted by Lester Nare and Krishna Choudhary, this episode is a deep dive into one of the strangest science stories of the year: a dish of human neurons allegedly learning to play Doom. We go back to t...

24 Maalis 1h 13min

5,000-Year-Old Bacteria, Solar Storms, Dogs, and Meta’s AI War (EP. 32)

Hosted by Lester Nare and Krishna Choudhary, this is our first standalone rundown episode — a faster, looser format where we hit several stories we didn’t have room to turn into full deep dives. This ...

20 Maalis 38min

Optovolution: Teaching Proteins to Think Like Computers (EP. 31)

Hosted by Lester Nare and Krishna Choudhary, this episode is a deep dive into a new synthetic-biology breakthrough out of EPFL: OptoEvolution. The big idea is simple but powerful — traditional directe...

18 Maalis 55min

Can We Stop an Asteroid? The Physics Behind NASA’s DART Mission (EP. 30)

Hosted by Lester Nare and Krishna Choudhary, this episode is a full deep dive on planetary defense. We break down NASA’s DART mission, why the goal was never to “blow up” an asteroid but to gently nud...

16 Maalis 54min

Astrobiology’s Biggest Survival Test + A Vaccine Against Everything? (EP. 29)

Hosted by Lester Nare and Krishna Choudhary, this episode starts in astrobiology with a fresh experimental challenge to one of the biggest objections to lithopanspermia: can life actually survive the ...

12 Maalis 2h 4min

Dark Galaxies, Fuzzy Dark Matter, and an Alzheimer’s Breakthrough (EP. 28)

Hosted by Lester Nare and Krishna Choudhary, this episode has two main stories: an astrophysics update on a candidate “dark galaxy” in the Perseus Cluster (a halo that’s ~99.9% dark matter), and a maj...

4 Maalis 1h 51min

Dream Engineering, the Proton Radius Puzzle, and an ALS Breakthrough (EP. 27)

Hosted by Lester Nare and Krishna Choudhary, this episode has three main stories: interactive dream engineering (yes, two-way “communication” during lucid dreaming), the proton radius puzzle finally g...

26 Helmi 2h 12min