Impact Lab

Subscribe Now to Our Free Email Newsletter
June 3rd, 2010 at 8:24 am

New Bicycle Helmet Stinks After An Impact

Odor-causing-helmet 1243

The smack n stink helmet.


Researchers at the Fraunhofer Institute for Mechanics of Materials in Germany have developed a bicycle helmet that emits a foul stench after an impact. This would inform users that the shock absorbing material inside is no longer effective and it’s time to get a new helmet…

The polymer materials or plastics produced by the process start to smell if they develop small cracks. Large cracks really cause a stink. The smell comes from odoriferous oils enclosed in microcapsules. “Cyclists often replace their helmets unnecessarily after dropping them on the ground, because they cannot tell whether they are damaged or not. The capsules eliminate this problem. If cracks form, smelly substances are released,” explains Dr.-Ing. Christof Koplin, research scientist at the IWM.

Link via DVICE | Image: Fraunhofer IWM


You must be logged in to post a comment.

How long before we reach peak ecommerce?