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The World’s Quietest Room
Scientists at Minneapolis’ Orfield Labs created their own soundless room, an anechoic chamber. Their studies have found that when putting subjects within the chamber, they begin to hallucinate within 30 minutes. 
With an average quiet room having a sound level of 30 decibels, the anechoic chamber’s sound level is -9 decibels. The ceiling, floor, and walls of the chamber absorb sound rather than have it bounce off as normal objects do. The chamber is so quiet that the subjects can even hear their own organs functioning.
Although extremely interesting, the experience is rather unpleasant. Not one subject has spent more than 45 minutes in the chamber alone. Leaving a person to only their thoughts, the chamber could drive them insane.

The World’s Quietest Room

Scientists at Minneapolis’ Orfield Labs created their own soundless room, an anechoic chamber. Their studies have found that when putting subjects within the chamber, they begin to hallucinate within 30 minutes. 

With an average quiet room having a sound level of 30 decibels, the anechoic chamber’s sound level is -9 decibels. The ceiling, floor, and walls of the chamber absorb sound rather than have it bounce off as normal objects do. The chamber is so quiet that the subjects can even hear their own organs functioning.

Although extremely interesting, the experience is rather unpleasant. Not one subject has spent more than 45 minutes in the chamber alone. Leaving a person to only their thoughts, the chamber could drive them insane.

(Source: megssxo, via thenextmadness)

— 1 month ago with 121656 notes
demonagerie:

Copenhagen, The Royal Library, Thott 290, p.91. Hans Thalhofer. Alte Armatur und Ringkunst Bavaria, 1459. This page is from Konrad Kyeser’s Bellifortis

demonagerie:

Copenhagen, The Royal Library, Thott 290, p.91. Hans Thalhofer. Alte Armatur und Ringkunst Bavaria, 1459. This page is from Konrad Kyeser’s Bellifortis

— 10 months ago with 66 notes
demonagerie:

Bibliothèque nationale de France, Supplément turc 242, detail of f. 30v (Pisces). Seyyid Mohammed b. Emir Hasan el-Suudî, Matâli’ al-sa’âdet. Istanbul, 1582.

demonagerie:

Bibliothèque nationale de France, Supplément turc 242, detail of f. 30v (Pisces). Seyyid Mohammed b. Emir Hasan el-Suudî, Matâli’ al-sa’âdet. Istanbul, 1582.

— 11 months ago with 123 notes

The alchemist who has achieved illumination.
from Andrea de Pascalis, Alchemy: The Golden Art. 

The alchemist who has achieved illumination.

from Andrea de Pascalis, Alchemy: The Golden Art. 

(Source: copticlight, via eurhydice)

— 12 months ago with 6173 notes
tagaoth:

A monster from Cosmographia by Sebastian Münster ~16th century 

tagaoth:

A monster from Cosmographia by Sebastian Münster ~16th century 

(via thehiddenscience)

— 1 year ago with 35 notes
demonagerie:

Dijon - BM - ms.0562, f. 115 (Minotaur in the Labyrinth). Histoire ancienne jusqu’à César. Latin Kingdom of Jerusalem, c. 1260-1270.

demonagerie:

Dijon - BM - ms.0562, f. 115 (Minotaur in the Labyrinth). Histoire ancienne jusqu’à César. Latin Kingdom of Jerusalem, c. 1260-1270.

— 1 year ago with 23 notes
demonagerie:

British Library, Royal 14 D I, detail of f. 376v (St Augustine and demons). Augustine, De civitate dei, books 1-10, in French translation by Raoul de Presles. Netherlands, S. (Bruges?), last quarter of the 15th century.

demonagerie:

British Library, Royal 14 D I, detail of f. 376v (St Augustine and demons). Augustine, De civitate dei, books 1-10, in French translation by Raoul de Presles. Netherlands, S. (Bruges?), last quarter of the 15th century.

— 1 year ago with 221 notes