⚡ Electricity, Magnetism & Waves
Real answers about the forces powering modern life: how electricity flows, why magnets attract, what light actually is. From AC versus DC to the colors of a rainbow to the gamma rays of distant stars.
34 topics 2–4 min avg read
🔬 Explore More Science Topics
Forces, Motion & Energy
Acids, bases, oxidation, and what's happening when stuff changes. Batteries and electrolysis are chemistry doing electrical work.
Chemistry Elements
The building blocks of all matter from hydrogen to uranium. Electron behavior is what electricity is, just at atomic scale.
Chemistry Reactions
Acids, bases, oxidation, and what's happening when stuff changes. Batteries and electrolysis are chemistry doing electrical work.
Volcanoes & Earthquakes
Eruptions, lava, plate tectonics, and Earth's violent geology. Volcanic ash clouds generate huge electrical discharges as they form.
Weather & Atmosphere
Clouds, wind, fronts, and what makes the sky do what it does. Atmospheric electricity is constantly building and discharging overhead.
Severe Weather & Storms
Tornadoes, hurricanes, lightning, and the extreme end of weather. Lightning is the most dramatic example of atmospheric electricity.
Oceans & Water Cycle
Tides, waves, currents, and the planet's biggest water reservoir. Sound waves travel four times faster underwater than in air.
Rocks, Minerals & Earth Structure
The three rock types, fossils, tectonics, and Earth's layers. Magnetite and other minerals are why Earth has a magnetic field.
How Things Work & Discoveries
Inventors, inventions, and how everyday devices function. Nearly every modern device runs on the principles in this hub.
🛠️ Free Tools & Calculators
Black Hole Weight Calculator
See what gravity does to your weight near a black hole, including the tidal forces that would stretch you into spaghetti.
Weight on Other Planets Calculator
See how much you'd weigh on every planet, the Moon, Pluto, and the Sun's crushing gravity. No signup, just answers.
Your Age on Other Planets Calculator
How old you'd be on Mercury, Mars, Jupiter, and beyond. Some surprising results waiting on Neptune.