A hiker is missing in a Big Bend canyon and a storm is coming. You're on the search-and-rescue command team. Read the drone's motion data, keep the medical cooler cold, and solve all four locks to launch the rescue in time.
Command radios you: “Drone's back with a distance–time graph, the med-cooler is warming in the sun, and we need a route — now.” The clues you need are motion and heat. Open each piece of evidence, decide what it actually proves, and solve all four locks to send the team out safely.
Tap each piece of evidence to read it. (You can reopen them anytime.)
Solve each lock using only the evidence above.
You read the drone's distance–time graph, told speed from velocity, ruled out a tempting off-topic fact, and named thermal equilibrium so the medicine stays cold. That's the exact reasoning real search-and-rescue crews use under pressure.