Recently discovered, the earliest dated English scientific instrument is going under the hammer at Christie's auction house in London on Wednesday. The palm-sized copper-alloy "horary quadrant," which ...

You just never know what you've got in the shed. This horary quadrant was found in a bag of old pipe fittings in a shed on a farm in Queensland, Australia, forty years ago. Last year the owner of the ...

One side of the device was used to tell the date of Easter Sunday. Christie's Images LTD. 2023 Billed as the “earliest dated English scientific instrument,” a 700-year-old medieval device used to tell ...

This time-telling instrument was one of the first devices capable of dividing a day into 24 equal hours – but for 20 years, it languished in a bag of pipe fittings in Queensland. In the Seventies, its ...