Divorced Texas parents put a lot of work into crafting their child custody arrangements, and that's just the beginning. Once their agreement is in place, they must balance their own schedules, those of their children and those of their ex to make sure that someone is always there to pick up the kids from soccer games or school. And when divorced parents have children from more than one previous relationship or begin a new relationship with a person who has children from a previous relationship, handling all the competing schedules can feel like doing advanced physics.
In fact, in a recent study, physicists tried to find an optimal solution to balance schedules in child custody arrangements. A physicist who ordinarily studies black holes started the study after he noticed the difficulty of juggling the custody arrangements for his own children with those for his partner's children. He wanted to find a way that he and his partner could routinely have all the children together at the same time on weekends.