MythBusters · Video summary

The Most Dramatic Final Results | Mythbusters

MythBusters explores physics and psychology myths, revealing that contagious yawning is confirmed and lightning strikes can indeed be fatal when using modern phones or showering.

MythBusters · April 18, 2026 · 30-min episode · 5-min read

The Most Dramatic Final Results | Mythbusters

Key takeaways

🎯Attempting to cool a beer by setting it on fire is ineffective; the heat generated warms the beer, making it undrinkable.01:50
🚀Avoid attempting to cool beverages by setting them on fire, as it will heat them up and make them undrinkable.01:50
💡Dry ice can make a coil too cold, freezing beer on contact, while a mixture of ice and salt around a coil cools beer to 46°F in 30 seconds, which is not ideal.04:32
📈Liquid nitrogen can rapidly cool a beer, but if not handled carefully, it can freeze the beer or cause excessive foaming, resulting in only a partial serving at around 43°F.07:08
🔍The myth of contagious yawning is confirmed, with a statistically significant increase in yawning when subjects are exposed to yawning, especially with a larger sample size and controlled conditions.15:33
⚡Modern phones and wiring do not prevent lightning strikes; electricity can arc through a phone's mouthpiece to a user, and showering during a thunderstorm is also extremely dangerous due to plumbing acting as a conductor.18:05

Chapters

0:00🎯 Intro and Beer Cooling Attempt
1:50🧪 Failed Fire-Cooling Method
2:07🧊 Designing a Faster Chill Machine
3:42🔬 Testing the Cooling Devices
7:22🥶 Results of DIY Chilling Methods
7:50😴 Yawning Contagion Experiment
9:53🤔 Results and Conclusions on Yawning
15:48⚡ Electromagnetic Pulse and Lightning Tests
20:08🚿 Shower During a Storm Test
25:32🔊 Breaking Glass with a Voice
29:10🎶 First Unassisted Human Voice Glass Break
29:52🏆 Conclusion and Results

The digest

High Level Overview

This compilation of MythBusters experiments showcases some of their most dramatic final outcomes across diverse myths, from unconventional beer cooling methods to contagious yawning, lightning safety, and the legendary ability to shatter glass with the human voice. Each experiment is presented with clear scientific reasoning and practical demonstrations, providing detailed insights into physical phenomena and human behavior. These findings matter to anyone interested in accessible, evidence-based debunking or confirmation of popular beliefs and urban legends.

Keep reading in The Digest

The full 5-minute article, 8 more sections, and every new episode from MythBusters and the creators you follow.

Cooling Beer by Fire: Myth Busted (0:00–1:53)
Rapid Beer Chilling Devices: Dry Ice Funnel vs. Liquid Nitrogen Heat Sink (1:54–7:30)
Contagious Yawning Experiment: Large Field Study Confirms Plausibility (7:31–15:39)
Lightning Safety Myths: Phone Use and Shower Danger (15:40–23:11)
Glass Shattering by Voice: First Confirmed Unamplified Vocal Break (23:12–29:59)
Key Frameworks and Mental Models
Practical Implications & Takeaways
Action-Oriented Summary

Read the full digest — free