#27 Our Bones Are 5x Stronger Than Steel
Nature is arguably the universe’s best engineer and humans are its best creation. Over the millennia, human engineers are repeatedly learning from nature’s examples through science. A human bone has an elastic modulus like concrete but 10 times stronger in its compression.
The bone is 5 times stronger than steel and a cubic inch of bone can bear a load of 19,000 lbs. However, our bones do not stay strong forever and become weaker with age and due to environmental impact.