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A LITTLE SOMETHING WORTH KNOWING

A small discovery. Yours to pass on.

HistoryOne small ahaInvention or discovery

Early radio · the kind of signals it transmitted

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HistoryOne small aha
Your new ahaWireless signals.

Radio soon became a mass medium for news, music, sport, and emergency communication. Source: Radio ↗

ahamoraReference ↗

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More from Inventions & Discoveries

A few more worth knowing.

  1. 42Jacquard loom · purpose of its punched cardsRECALL
    To control woven patterns.

    The idea of instructions encoded on cards later influenced computing history.

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  2. 43Transistor · the two key electronic functions it made compact and reliableRECALL
    Small, reliable switching and amplification.

    Transistors replaced bulky vacuum tubes in many devices and helped enable modern computing.

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  3. 44Telescope · the objects it made easier to observe in astronomyRECALL
    Distant celestial objects.

    Telescopes changed astronomy by revealing moons, planets, nebulae, galaxies, and more.

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