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Season guide

The Nature of Things: Season 4

11 episodes Premiered May 5, 1964 Updated Oct 3, 2026
Previously on The Nature of Things

Season 4 Lore Primer

Key plot threads, lore context, and character stakes you need to remember before diving into this season.

  • ⚡ Directly follows the overarching narrative developments of The Nature of Things Season 3.
  • ⚡ Faction dynamics and core character alliances shift under escalating external stakes.
  • ⚡ Crucial mysteries introduced previously reach key turning points and narrative reckonings.
  • ⚡ Sets up serialized story arcs that build directly toward the climactic season finale.
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Season 4 Episodes

Episode Guide

🛡️ SPOILER SHIELD

Season 4 Progress Shield

Future titles & synopses blurred. Tap "Reveal" on any card to peek.
Binge Efficiency Engine

Season 4: Filler vs. Essential Canon

Filter episodes by narrative weight. Focus on essential mytharc and skip standalone side quests.

27%
73%
Mytharc (3): Crucial lore & season climaxes
Core (8): Character development & subplots
Side Quest (0): Standalone / filler
S4·E1 Mytharc

Einstein, Man & Mathematician

May 5, 1964

An examination of personality and achievement of Albert Einstein. Dr Jacob Bronowski of Salk Institute for Advanced Biological Studies at La Jolla, California.

S4·E2 Core

About The Size Of It

May 12, 1964

Scientist and broadcaster William Whitehead and Dr WE Swinton, Director of Royal Ontario Museum discuss how size differences in animal kingdom are result of their environment and t

S4·E3 Core

Standards For Comparison

May 19, 1964

Universal standards of measurements are explained in laymen's terms by Dr Patterson Hume and Dr Donald Ivey of University of Toronto.

S4·E4 Core

Excursion Into Hell

May 26, 1964

Centuries ago, people in warmer parts of earth believed a dread disease was contracted from unhealthy air generated in swamps.

S4·E6 Core

Science In Sports

Jun 9, 1964

Host Lister Sinclair and guest Lloyd Percival, sports authority, discuss and demonstrate how various sporting activities can now be precisely measured and how they can thus be impr

S4·E7 Core

Lasers

Jun 30, 1964

Dr Patterson Hume and Dr Donald Ivey explain recent developments of laser beam since 1960, how it works, and its potential uses in medicine, war and communications.

S4·E8 Core

Blood, Sea And Tears

Jul 7, 1964

Man still carries around in him an isolated pool of early Palaeozoic ocean that fed his plankton ancestors.

S4·E9 Core

Cartography

Jul 14, 1964

Host and writer Lister Sinclair talks about map projection, and problems of taking a spherical object, earth.

S4·E10 Mytharc

The World Of Water

Jul 21, 1964

In this program Donald Crowdis, Director of Nova Scotia Museum of Science, talks about water.

S4·E11 Mytharc

Immunology

Jul 28, 1964

In this program Donald Crowdis, Director of Nova Scotia Museum of Science, talks about transplants and new study of immunology.

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