A clear, evergreen explainer on how electricity travels from a power plant through transformers, transmission lines, substations and local distribution systems to reach homes.
A clear, evergreen explainer on how touchscreens detect your finger using capacitance, sensor grids, controllers, software and gesture recognition.
A clear explainer on how a microwave heats food using electromagnetic waves, dielectric heating, water molecules, magnetrons, turntables and safe cooking practices.
A clear explainer on how refrigerators keep things cold by moving heat using refrigerant, evaporation, compression, condensation and expansion.
