Battery Revolution: Trace batteries from Volta’s first cell to lithium-ion, sodium-ion and solid-state technologies.

Inside a Battery: Understand lithium-ion cells, their components, charging, discharging and basic battery mathematics.

Battery of Tomorrow: Explore solid-state, sodium-ion, lithium-sulfur, metal-air and flow batteries, plus recycling.

Landmarks in Space: Follow milestones from Sputnik and Apollo 11 to the ISS, black-hole imaging, James Webb and Mars.

Sun Temple, Konark: Discover how its stone wheels can measure time.

Polar Planimeter: Learn the principle of this mechanical area-measuring instrument and make a simple DIY version.

Design Your Own App: Follow seven steps to turn a real-world problem into an app idea.

Science Fiction: Read “The Lotus Eaters” by Stanley G. Weinbaum, exploring alien life and intelligence.

Mind and Matters: Practical strategies for handling heavy workloads through planning, boundaries, support and positive thinking.

Mathematics of Traffic Flow: Discover how mathematics helps understand and improve vehicle movement.

Home Lab: Measure sound frequency using resonance with a simple bottle-and-tube experiment.

Photo Essay: See how a weaver bird constructs its remarkable hanging nest.

Road Safety: Explore practical ways to reduce road accidents through safer drivers, vehicles, roads and technology.

Unasked Questions: Six thought-provoking questions linking science, history, technology, society and the future.