Thursday 16th November 2023
    Difficulty: Medium

    Inventions (Quiz #363)

    Photo by <a href="https://unsplash.com/@cartega?utm_content=creditCopyText&utm_medium=referral&utm_source=unsplash">Jon Cartagena</a>
    Photo by Jon Cartagena (Unsplash)

    1. Several people, including Samuel B. Fay, Erlman J. Wright, and Johann Vaaler have been credited with inventing one of the most-used items of all time. What is it?

    2. Which company were the first to develop a digital camera, but were reluctant to promote the new technology because they feared it would damage their core business?

    3. What did Percy Spencer notice, while working on a radar set, that led him to invent the microwave oven?

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