Understanding Car Crashes: When Physics Meets Biology

Updated in 2020.
Why do some car crashes produce only minor injuries? How can a single crash of a car into a wall involve three separate collisions? Griff Jones, award-winning science teacher, returns to the Insurance Institute for Highway Safety's Vehicle Research Center to answer these questions and to examine the laws of nature that determine what happens to the human body in a crash.
Jones reviews levels of organization in the body and explains how body cavities house and protect major internal organs. Through creative experiments, he explores how the third collision can cause injuries to organs. He introduces the concepts of stress and strain. He demonstrates how shockwaves can damage tissue and what happens at the cellular level.
Tools from the field of injury biomechanics, like biofidelic crash test dummies, help doctors and engineers determine what works to reduce injuries and deaths in crashes. The key to preventing injuries in any type of crash, whether it's in a race car or a family sedan, is to reduce forces on occupants. Extending impact time, keeping the occupant compartment intact, and tying occupants to the compartment are what keep people safe in car crashes when physics meets biology.
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[@rohitvk5308]

The IIHS videos are very helpful to understand and even revise the basics!

[@ZENITHTheRobloxPlayer]

why are there no comments? this deserves way more recognition!

[@marywillis1630]

Agreed!

[@bruh_moment294]

it's because the video was posted again as a newer version. the older version has many more views and comments.

[@MatthewTheCCMA]

These are wonderful films, I still remember watching the teen driver film when I first got my drivers license and I feel like it made me think more about driving safely as a youth

[@solomonchristudhas777]

IIHS, Keep up the awesome work, all efforts are fruitful. Let's work together

[@iihs-hldi]

Explore more crash science with hands-on activities and demonstration
videos, perfect for learning at home or at school. Check out IIHS-HLDI
in the Classroom: classroom.iihs.org/

[@magicmajufin4988]

my drivers school still uses the old one

[@rainswth]

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[@luckyluke5638]

12:37 "It was later published in a medical journal and has contributed to the debate"
Scientists who believe the other theory: "It is important to note that no single test can accurately represent real world crashes, and our theory rigorously comply with government scientific research standards."

[@muhammedshah4582]

Amazing work

[@sci-filover7541]

How to deactivate the airbag?

[@zox40]

Кто от Асафьева Стаса?

[@victoriakleiner6428]

4:05 3:42

[@sethflorentz4809]

All of this work... For 200 likes

[@victoriakleiner6428]

4:5

[@victoriakleiner6428]

3:57 4:05

[@victoriakleiner6428]

3:42 4:5

[@filepz629]

❤️‍🔥IIHS❤️‍🔥