Everything Everywhere Daily: History, Science, Geography, & More The Science of Swimming
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Feb 4, 2026 A deep dive into why swimming times plunged and which innovations drove the leaps in speed. The conversation covers drag, technical swimwear and the polyurethane suit controversy. It explores goggles, caps, pools, starting blocks and the rise of the underwater dolphin kick. Tech, technique and equipment evolution take center stage.
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Records Improved In Big Leaps
- Swimming performance gains happened in sudden leaps rather than gradual progress over the last century.
- Technological shifts, not just training or diet, drove many of those dramatic improvements.
Century-Scale Time Comparisons
- Gary Arndt contrasts Johnny Weissmuller's 1924 100m freestyle time of 59 seconds with modern times around 46.4 seconds.
- He also cites women's 1924 gold at 1:12 versus Sarah Sjöström's 52.16 to show century-scale gains.
Drag Dominates Swimming Performance
- Drag is the primary enemy in swimming because water is far denser and more viscous than air.
- Small factors like hair or suit material substantially affect speed due to increased drag at higher velocities.