Interesting Engineering on MSN

New concrete battery delivers 10x energy boost, turns buildings into giant power banks

C oncrete has long built our cities, but researchers now see it as a future power source, too. A new form of ...

4 Times More Compact Than a Regular Power Bank, This 10,000mAh Unit Is Going for Pennies on Amazon

Smartphone batteries have improved over the years, but come on: if you actually use your phone during the day, the battery ...