Traffic Collision Reconstruction

A traffic reconstruction specialist uses environmental and vehicle evidence to reconstruct a collision and help determine what may have happened....

Record Player

A record player platter spins a vinyl disc with sound waves etched into grooves. A precision arm with a needle...

Solar Cell & Module

Electrons inside of solar cells absorb energy from sunlight, travel along an external circuit where they expend excess energy to...

How speakers make sound

Speakers (also called loudspeakers) push and pull surrounding air molecules in waves that the human ear interprets as sound. You...

How Hard Disk Drives Work

Hard Disk Drives (HDDs) use spinning disks (platters) to magnetically store information. Actuator Connections Logic board Platters (disks) Read/Write heads...

Inside a Jet Engine

At takeoff, a jetliner engine can move 1.25 tons of air per second. That’s enough power to suck all the...

How a Car Engine Works

Did you know that your car will take in 20,000 cubic feet of air to burn 20 gallons of fuel?...

Tarantula: Giant of the Spider World

Tarantulas can measure up to twelve inches across, with fangs up to one inch long.

How a Handgun Works: 1911 .45

The model 1911 handgun is named for the year it was formally adopted by the U.S. Army – and while...

Roland TR-808 Rhythm Composer

The Roland TR-808 is an analog, programmable drum machine that was sold from 1980-1984. 1 Input / Output switch When...

Roland RE-201 Space Echo

The “Space Echo” is a portable sound processing device used to create echo and reverb effects on audio tracks. How...

Modular synthesizer

Synthesizers modify sound waves and create unique sounds. Since modular synthesizers allow a user near infinite variations for modifying sound...

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