Energy density: How it’s all packed in

Solid black cube radiating glowing energy, sitting on a broken wooden table with shattered legs, surrounded by a spilled coffee mug, tipped plant pot, and scattered papers in a cozy room.

Energy density reveals how much power we can pack into a given space or weight, shaping everything from the batteries in our gadgets to the fuels powering transportation. It’s the key to understanding efficiency, innovation, and the energy choices that drive our world.

Electric charge: From balloons to batteries

Children at a birthday party, their hair standing up from static electricity due to electric charge.

Electric charge is one of the fundamental forces shaping our world, influencing everything from the way atoms bond to the power that keeps your devices running. Whether it's the static electricity that makes your hair stand up or the complex movement of electrons fueling technology, electric charge plays a vital role in our everyday lives.