It may not look impressive by modern standards.
But that little device represents a clever piece of engineering.
It took ordinary movement—the spinning of a bicycle wheel—and turned it into something useful: light.
And perhaps that is why these mystery-object challenges are worth more than a quick guess.
They remind us that behind every strange-looking object is a story.
Sometimes it is a story about engineering.
Sometimes it is a story about changing lifestyles.
Sometimes it is a story about technology we have forgotten.
And sometimes, as with this mysterious old bicycle component, the answer has been hiding in plain sight all along.
