Young's modulus is a crucial mechanical property in engineering, as it defines the stiffness of a material and tells us how much it will deform for an applied stress. In this video I take a detailed ...

On her first full day of preschool, Alexander Lane's 3-year-old daughter stayed in the car for an hour at drop-off because she didn't want to go inside. On the second day, she entered class in tears.

Brookline, Massachusetts — Like most people with autism, 19-year-old Viraj Dhanda of Brookline, Massachusetts, came into this world disguised as a typical baby. Until he was about 18 months old.