liquid water and ice
Water molecules form highly organized crystaline structures as they freeze, which causes a relatively unique form of negative thermal expansion.
Image courtesy of P99am, via wikimedia commons (creative commons 3.0)
JD Laukkonen
JD Laukkonen turned wrenches in the north end of Seattle for a decade, so he's no stranger to the inner workings of modern automobiles. He has worked as a freelance writer since closing his shop in 2007, and he currently covers automotive technology for Lifewire.com.
