Taking a train during a heat wave? Watch out for ‘sun kinks’
This story was originally published by Grist. Sign up for Grist’s weekly newsletter here. One of the iconic sensory experiences of riding a train is actually the sound of ingenuity. As steel railroad tracks heat up, they grow: 1,800 feet of rail expands by more than an inch for every 10 degrees Fahrenheit of temperature increase. So […]