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A Dutch door with the top half open, in South Africa Woman at a Dutch Door, 1645, by Samuel van Hoogstraten Old half-door in East Crosherie, Wigtownshire, Scotland. A Dutch door (American English), stable door (British English), or half door (Hiberno-English) is a door divided in such a fashion that the bottom half may remain shut while the top half opens.
Earmuffs cover a person's ears for thermal protection. Earmuffs consist of a thermoplastic or metal head-band, that fits over the top of the head, and a pad at each end, to cover the external ears. Earmuffs were invented by Chester Greenwood in 1873. [199] 1873 Silo. Two farm silos. A silo is a structure for storing bulk materials.
Other sheathings of various sizes in bronze show this was a universal method adopted to protect the wood pivots. In the Hauran in Syria where timber is scarce, the doors were made of stone, and one measuring 1.63 by 0.79 m (64 by 31 in) is in the British Museum; the band on the meeting stile shows that it was one of the leaves of a double door ...
Here’s what those little doors in old houses were for! What People Think the Doors For. ... and it would’ve made since to be able to stow a card table in a hall closet.
Although glass was made at Jamestown, production was soon suspended because of strife in the colony. A second attempt at Jamestown also failed. Later attempts to produce glass were made during the 1600s; glass works in New Amsterdam and the Colony of Massachusetts Bay had some success. In the 17th century, at least two New Amsterdam glass ...
A revolving door in Turkey (counter-clockwise rotation) A revolving door typically consists of three or four doors that hang on a central shaft and rotate around a vertical axis within a cylindrical enclosure. To use a revolving door, a person enters the enclosure between two of the doors and then moves continuously to the desired exit while ...
Image credits: Downey, Jack,, photographer. Many of us love using black-and-white filters on our photos today, but back in the day, that was the only option! Imagine a world where every photo was ...
c. 20,000 BC — Nile Valley, Ishango Bone: suggested, though disputed, as the earliest reference to prime numbers as also a common number. [1] c. 3400 BC — the Sumerians invent the first so-known numeral system, [dubious – discuss] and a system of weights and measures.