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A telegraph key, an electric motor, and a light bulb grouped together under a lightning bolt symbol.

Think you know what sparked the world? Take the ZapRush and prove your battery.

Endless Mode

Zap Pool

107

Think your brain is wired for electric inventions? Prove it. This ZapRush session fires off breakthroughs from light bulbs to lithium-ion without a pause. Keep your streak alive or watch the circuit break. One wrong move and it's lights out. How long can you stay powered up?

Endless trivia - one wrong answer and it's over

Sign in or create an account, 5 free runs daily

ZapStacks in Electric Inventions

A horseshoe magnet surrounds a copper wire coil wound around a central shaft.
Electric Motor
25 Zaps · Hard
A vintage radio, microphone, vacuum tube, and lightning bolt are arranged with a small human figure.
Radio
20 Zaps · Medium
A telegraph key, a spool of wire, a ceramic insulator, and a roll of paper tape with Morse code.
Telegraph
20 Zaps · Hard
A vintage rotary telephone with its handset, internal copper coils, and a baseball bat.
Telephone
20 Zaps · Hard
A stylized vintage television with rabbit-ear antennas, a rotary phone dial, and a waveform symbol.
Television
22 Zaps · Hard

More ZapRush in Electricity & Magnetism

A minimalist graphic of a resistor, coil, capacitor, and glowing light bulb connected by black circuit lines.
A stylized orange lightning bolt, a cream-colored cloud, a gold circle, and a black rectangular bar.
A horseshoe magnet with magnetic field lines, a compass, and two cube magnets labeled N and S.
A large copper coil, a light bulb, a lightning bolt, and an electric motor component are positioned in front of a silhouette of a person.