The best free AI courses and certificates for upskilling in 2026 - and I've tried them all

I've worked with AI for decades and have a master's degree in education. Here are the top free AI courses online that I recommend - and why.
Dot Physics on MSN

Finding and plotting a catenary curve | GlowScript Python tutorial

In this tutorial, we find and plot a catenary curve using GlowScript Python, walking through the math, physics, and code step by step. Learn how to model a hanging cable, visualize the curve, and ...