science

Zenith Flash-matic

Zenith Flash-matic is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Zenith Flash-matic rather than just read about it. In short: The Zenith Flash-Matic was the first wireless remote control for television, invented by Eugene Polley in 1955. It had only one button that was used to power on and off, channel up, channel down, and mute.

Key takeaways

Zenith Flash-matic belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Zenith Flash-matic to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Zenith Flash-matic from memory before moving on to harder problems.

Reference excerpt

The Zenith Flash-Matic was the first wireless remote control for television, invented by Eugene Polley in 1955. It had only one button that was used to power on and off, channel up, channel down, and mute. The Flash-matic's phototechnology was a significant innovation in television and allowed for wireless signal transfer previously exclusive to radio.

Design and production Earlier remotes could turn sets on/off and change channels, but were connected to the TV with a cable. The Flash-matic came in response to consumer complaints about the inconvenience of these cables running from the transmitter to the TV monitor. Earlier remotes served as the central control system for transmitting complex signals to the receiving monitor. The Flash-matic instead placed the complexity in the receiver as opposed to the transmitter. It used a directional beam of light to control a television outfitted with four photo cells in the corners of the screen. The light signal would activate one of the four control functions, which turned the picture and sound on or off, and turned the channel tuner dial clockwise or counter-clockwise. The bottom receptors received the signal to mute and power on/off, and the upper cells received signals to channel up/down. In order for the light beam to be received by the monitor, the remote control had to be directed towards one of the four photocells. The system responded to full-spectrum light so it could be activated or interfered with by other light sources including indoor light bulbs and the sun. Despite these defects, the Flash-matic remained in high demand. In September 1955, Zenith apologized for its inability to meet the consumer demand. The Flash-matic was soon replaced by better control systems. The "Zenith Space Command" remote control went into production in 1956 with aims to improve upon the Flash-matic's design.

Advertisement Campaign The Flash-matic was marketed as an interactive technology and tuning device for the television. Muting was the first control feature to be included on a remote control but unavailable on the monitor. The advertising campaign for the Flash-matic remote control emphasized its ability to "shut off annoying commercials while the picture remains on the screen." The mute button was explicitly designed for the purpose of tuning out the commercials. As a result of this new feature as well as the Flash-matic's pistol shape, the Flash-matic's ad campaigns invited viewers to "shoot" the annoying commercials or announcers that they were tired of listening to, while leaving the image present so that the viewer would know when to turn the sound back on.

See also Zenith Space Commander, mechanical ultrasonic remote control of the 1960s

References

Further reading Luplow, W.C. (2012). "Channel Surfing Redux: A Brief History of the TV Remote Control and a Tribute to Its Coinventors". IEEE Consumer Electronics Magazine. 1 (4). IEEE: 24–29. Bibcode:2012ICEM....1d..24L. doi:10.1109/MCE.2012.2207149. S2CID 34917624.

External links Owner's manual

Illustrations

Worked examples

Example 1 — a first encounter with Zenith Flash-matic

Start with the simplest possible case. Write down what Zenith Flash-matic claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Zenith Flash-matic before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Zenith Flash-matic ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Zenith Flash-matic

In research: Zenith Flash-matic appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Zenith Flash-matic in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Zenith Flash-matic is common in secondary-school and first-year university syllabi. It links to neighbouring topics Products introduced in 1955, Remote control, Television technology, so understanding it makes those chapters shorter.
In everyday life: Look for Zenith Flash-matic outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Zenith Flash-matic in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Zenith Flash-matic means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Zenith Flash-matic out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Zenith Flash-matic in simple terms?

Why does Zenith Flash-matic matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Zenith Flash-matic?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Zenith Flash-matic.