Vol. 2 No. 5 (2026)

Bright yellow popper toys with emoji icons on for happy, sad, etc gathered on a dark gray lab table

From the cover: Energy is neither created nor destroyed, but it can change form between elastic potential energy, kinetic energy, gravitational potential energy, and heat. In this issue, we use a simple spring-loaded jumping toy to test ideas about energy conservation. Cover image: Dennis Evangelista. Also check out https://www.youtube.com/watch?v=HtaMhtdMuMU and this video from Jake Croft and David Pevzner https://www.youtube.com/shorts/YfQQiB0d6-Y

Published: 2026-05-17

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