Explore 25 science experiments that defied the laws of physics, revealing mind-bending phenomena that challenge intuition.

CHICAGO — You might think scientists would have figured out by now the answers to such basic questions as why water droplets splash, why sand castles collapse and what makes shaving cream so creamy.

Humans have been making fire using friction for thousands of years, with evidence of its use found in archaeological records across different cultures worldwide. Fire by friction is a testament to ...