Solid Starts on Instagram: "A lot of people will offer you a lot of advice when your baby is ready to start solids. But trust us on this one: Letting your baby self-feed (with spoons or hands) at 6 months is the most developmentally appropriate move. That’s because the building blocks for learning to eat are in high gear prior to 8 months of age, and then from 9 to 12 months, they start to fade. Additionally, today’s evidence shows us that when babies are exposed to a wide variety of colorful fo

Remarkable Facts on Instagram: "Follow @remarkable.facts if you want to get smarter every day. -------------- The Rubik's Cube, a revolutionary three-dimensional puzzle invented in 1974, presents a complex combinatorial problem. Initially conceived as a teaching tool for spatial relationships, this seemingly simple object comprises a series of interlocking pieces that can be rotated along three axes. The core challenge lies in its state space, a vast number of possible configurations that, for t