Today I Learned …

Rubber bands last longer when refrigerated.

If you encounter a bag of rubber bands in a friend’s fridge, they’re not storing them as a tasty snack. Rubber bands actually last longer and get stretchier at cooler temperatures.

While most materials expand when heated and contract when cooled, the polymer structure of rubber actually produces the opposite effect. Rubber molecules are grouped in chains like “tangled spaghetti.” When the long chains get hot, they shorten and contract, while colder temps make them relax and expand. 

 (Source: Ranker)