A warm object holds a clue about its past. See how different assumptions change the time you can infer.
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RECONSTRUCT A POSSIBLE PASTEDUCATIONAL MODEL
Scroll the graph sideways to explore the full curve ↔
The shaded interval shows possible elapsed times under your assumptions. Lines show the earliest and latest cooling histories.
FOLLOW YOUR CURIOSITY
Try a little experiment.
Predict. Change. Compare.
Choose an experiment, predict the result, then explore.
THE SCIENCE BEHIND THE PLAY
Work backwards
Newton’s cooling model links the current temperature to the starting temperature, surroundings and cooling rate. Working backwards requires assumptions about all three.
A range tells the story
The highlighted interval spans the earliest and latest times allowed by your input bounds. It is an assumption-based interval, not a statistical confidence interval.
Forensic connection
Postmortem cooling is called algor mortis. Bodies have internal temperature gradients, variable insulation and changing surroundings. Real investigations combine multiple lines of evidence; this warm-object exercise cannot determine a real time of death.
A model, with boundaries.
A fictional warm-object teaching model, not a forensic estimator. Assumes a single uniform temperature, constant surroundings and constant positive k. Measurement error is omitted. No early cooling plateau, metabolism, evaporation or changing environmental history. Parameter bounds are independent assumptions, not calibrated probabilities.