How It Works IRL

Host Shana explores the incredible three-pound supercomputer inside your head, explaining how 86 billion neurons communicate using electricity and chemicals, and what different brain regions do. She covers how memory works (short-term vs long-term), how emotions are created in the limbic system, and why sleep is essential for brain health. By the end you'll understand how your brain processes thou...

Host Shanna breaks down the differences between DSLR and mirrorless pro cameras, explaining how each type captures images, how viewfinders work, and what the moving parts do. She covers pros and cons like battery life, speed, size, autofocus, video performance, and lens availability. By the end you'll know which camera suits sports, weddings, travel, and filmmaking, and what future camera tech (li...

Host Shanna dives into how LEGO bricks are manufactured and why pieces from decades apart still fit perfectly, focusing on clutch power, precision injection molding, studs and tubes, and consistent color. The episode also highlights temperature testing, advanced building techniques like SNOT, LEGO’s real-world uses (NASA, robotics, art), and the move toward sustainable plant-based plastics.

Host Shanna explains how GPS uses a constellation of satellites, precise timing, and signals measured by your phone to determine location. The episode covers how at least four satellites are used for accuracy and time synchronization, why atomic clocks matter, and what limits GPS—like buildings, tunnels, and water. It also describes how phones combine GPS with cell towers, Wi‑Fi, and Bluetooth, li...

Join Shana on How It Works IRL for a simple, no-jargon breakdown of how ChatGPT works — from predicting the next word like super-powered autocomplete to learning patterns from millions of texts and human feedback. Understand why it sometimes makes things up, its limits (outdated info, no true understanding), and how to use it best for brainstorming, writing help, and learning — while always double...