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The Tomb of Atreus also known as the Treasury of Atreus is a tomb located in Mycenae, Greece built between 1250 and 1300 B.C. The face of the tomb consists of columns and has a triangle above the doorway. The tomb has an interior that is formed of a semi-underground circular room with a beehive tomb, also known as the tholos.

Tomb of Atreus

The Tomb of Atreus also known as the Treasury of Atreus is a tomb located in Mycenae, Greece built between…

"The Basilica of Maxentius has great intersecting vaults, vaulted aisles and buttresses." — Chambers, 1881

Basilica of Maxentius

"The Basilica of Maxentius has great intersecting vaults, vaulted aisles and buttresses." — Chambers,…

A coffer in architecture, is a sunken panel in the shape of a square, rectangle, or octagon in a ceiling, soffit or vault. A series of these sunken panels were used as decoration for a ceiling or a vault. The stone coffers of the ancient Greeks and Romans are the earliest surviving examples.A, from Palmyra; B, Basilica of Constantine.

Roman Ceiling Panels

A coffer in architecture, is a sunken panel in the shape of a square, rectangle, or octagon in a ceiling,…

The construction of arches and vaults did not remain confined to the interior of buildings, but imparted its own expression to the architecture of the exterior also; for the shape of openings became circular instead of square, although they were surrounded by half-columns gave a rectilinear finish to the whole.

Architecture of the Colosseum

The construction of arches and vaults did not remain confined to the interior of buildings, but imparted…

"Medieval Groins in early 12th century vaulting. A, A, groins. GROIN. In architecture, the curved intersection or arris of simple vaults crossing each other at any angle." -Whitney, 1911

Groin Vault

"Medieval Groins in early 12th century vaulting. A, A, groins. GROIN. In architecture, the curved intersection…

"Vault beneath the House of Lords associated with the Gunpowder Plot." -Foster, 1921

Gunpowder Plot

"Vault beneath the House of Lords associated with the Gunpowder Plot." -Foster, 1921

The word "parachute" comes from "para", meaning "against" or "counter" in Ancient Greek, and "chute", the French word for "fall". Some modern parachutes are classified as semi-rigid wings, which are maneuverable and can make a controlled descent to break on impact with the ground.

DrogueParachute

The word "parachute" comes from "para", meaning "against" or "counter" in Ancient Greek, and "chute",…

"A conduit or canal constructed, especially in a town or city, to carry off superfluous, water, soil, and other matters; a public drain. A, B, C, D, E forms used in London, Paris, and other European cities; F, G, H, I, J, K, L, special forms used in New York and other American cities. F shows a method of repairing with tiles at the bottom of an oval sewer. G, tile-bottomed sewer. H, barrel sewer...of wood bound with iron. I, a form used for large sewers. J, section of pipe sewer. K, half section of sewer having section similar to B, but also provided with a spandrel. L, the aqueduct form, used for large sewers only, it rests on a bed of concrete." —Whitney, 1889

Collection of Sewer Cross-Sections

"A conduit or canal constructed, especially in a town or city, to carry off superfluous, water, soil,…

A silo is a structure for storing bulk materials. Silos are used in agriculture to store grain (see grain elevators) or fermented feed known as silage.

Bulk Storage Silo

A silo is a structure for storing bulk materials. Silos are used in agriculture to store grain (see…

A sturdy box designed to protect the coffin inside of it. The body is placed within the coffin, which is then placed inside the vault. Body, coffin, and vault are buried.

Burial Vault

A sturdy box designed to protect the coffin inside of it. The body is placed within the coffin, which…

An artistic gymnastics aparatus, used by both males and female gymnasts.

Vaulting

An artistic gymnastics aparatus, used by both males and female gymnasts.

An artistic gymnastics aparatus, used by both males and female gymnasts.

Vaulting Bar

An artistic gymnastics aparatus, used by both males and female gymnasts.