MythBusters · Video summary

Myths That Turned Into Engineering Marvels | Mythbusters

Mythbusters explores "pyramid power", the physics of bullets underwater, and the feasibility of a "border slingshot". Science debunks myths and reveals surprising truths about physics.

MythBusters · April 16, 2026 · 30-min episode · 5-min read

Myths That Turned Into Engineering Marvels | Mythbusters

Key takeaways

🎯The popular notion of "pyramid power" preserving objects like fruit or sharpening razors is scientifically unfounded and likely stems from misinterpretations of natural preservation processes or flawed experimental setups.01:52
🚀When evaluating claims of unusual phenomena (like "pyramid power"), critically examine the experimental setup and look for alternative, scientific explanations for observed effects.01:52
🚗Talking on a cell phone while driving can be as dangerous as driving under the influence of alcohol, significantly impairing reasoning, memory, and reaction times, leading to a higher failure rate in driving tests.13:44
📝Recognize that distracted driving, including cell phone use, carries risks comparable to driving impaired, and prioritize full attention when operating a vehicle.13:44
💡A core principle of ballistics in water is rapid deceleration. Supersonic bullets, like the .223 rifle and .50 caliber rounds, disintegrate or lose almost all their kinetic energy within a few feet of entering water, rendering them non-lethal at relatively close underwater distances.17:31
🔧Apply the principle of rapid deceleration in fluid dynamics to understand how projectiles behave differently in water, impacting their effective range and lethality.17:31

Chapters

0:03🎯 Introduction and Pyramid Power Test
0:52🧪 Milk and Apple Rottenness Experiment
2:58🔬 Microscope Analysis of Razor Blades
3:52✂️ Sharpness Test of Razor Blades
5:36🍎 Whole Apple Microbial Load Test
6:05🔎 Stone and Cube Power Tests
9:40🚗 Driving and Cell Phone Safety Tests
10:12🍺 Alcohol and Driving Simulation
15:19💥 Ballistic Tests with Firearms
17:43🎯 High-Powered Rifle and Bulletproof Glass Tests
24:58🚀 Cannonball and Mechanical Launch Tests
29:12🎬 Final Conclusion and Myth Busting

The digest

This content investigates popular myths that have influenced engineering ideas or beliefs, rigorously testing their validity with experiments ranging from “pyramid power” effects on preservation and razor sharpness to the dangers of cell phone use while driving, underwater bullet lethality, and the feasibility of a border-crossing slingshot. The exploration offers insight into how myths persist, what scientific evidence reveals, and the extent to which these myths translate into practical engineering or safety truths. The material is valuable for educators, engineers, safety advocates, and curious professionals seeking empirically grounded evaluations of enduring popular myths.

Testing “Pyramid Power” and Its Claims of Preservation (00:01–06:40)

The team examines whether pyramids possess mystical powers—specifically, if they can preserve organic materials like fruit and razor blades longer than normal conditions. Using apples, milk, flowers, and razor blades inside a pyramid structure versus control samples, subtle differences were observed: apples inside the pyramid rotted slower and retained more color, while milk transformed controversially (not conclusively preserved).

An Egyptologist clarified that no ancient Egyptian evidence supports pyramids themselves as preservation instruments—instead, mummification played the key role.

Advanced analysis under electron microscopes showed no meaningful difference between pyramid-stored and control razor blades in sharpness or edge condition. A human test of razor sharpness confirmed that pyramid blades were blunt and ineffective, undermining claims of pyramid power sharpening.

A follow-up experiment, using sterilized whole apples and adding cube-shaped storage for comparison, revealed no appreciable preservation difference between pyramid and open-air samples, while cube storage was detrimental. The initial promising apple result was attributed to contamination differences, not mystical effects.

Conclusion: The myth of pyramid power for preservation and sharpening is busted.