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19th century rolling ball chronometer
Unlike the popular pendulum clock 200 years ago, inventor William Congreve's clock measured time by the movement of a small ball.
A Roll
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Articles about A Roll
4 published items.
Animal world
How many legs does a rolling roller really have?
The slide - some places called 'centipedes' - are not worms and are not insects. Insects only have six legs, and obviously the mats have more legs than that. So how many…
Archeology
Unearthed a piece of gold carved a magic call to the devil in Serbia
Maybe it was just magic calling rain to water the plants but also, it opened a hell gate to summon demons, no one was sure of anything.
