On mornings around the winter solstice a beam of light penetrates the roof box and travels up the 19 metre passage and into the chamber.
Roof box newgrange.
Newgrange is best known for the illumination of its passage and chamber by the winter solstice sun.
The term was coined by professor michael o kelly during his excavation of the newgrange passage cairn at brú na bóinne ireland.
Freeman marr explores the unique archaeological feature of newgrange known as the roof box which was rediscovered after the excavations carried out at the site in the 1960s by.
It is well known that newgrange has a roof box through which the winter solstice sun light penetrates up to the chamber of newgrange.
This window through which the sun shines on the chamber floor is at present times trapezium formed because the light is blocked by.
The roof box sits above the passage tomb entrance resting partially on top of two different roof slabs.
A roofbox is a specially contrived opening above a doorway usually built for some astronomical significant event.
The ritual origins of the roof box at newgrange the thesis by laura e.
The elaborate structure above and behind the entrance to newgrange which the excavator professor m j.
This baffling orifice held a great surprise for those who unearthed it.
From the scrape marks on the rocks archaeologists were able to tell that these rocks had been used to block or open the hole just like a window.
Above the entrance to the passage at newgrange there is a opening called a roof box.
It was built with carefully crafted baffles that restricted the entry of light to the time of the winter solstice and also so that the light only came.
In front of the roof box is the first roof stone of the passage rs 1.
The roofbox was built directly above the entrance door to the passage.
Above the entrance to the passage of the mound there is a opening called a roof box.
Below the decorated lintel is what o kelly called the back corbel and behind that is roof stone 2 rs 2.
Its purpose is to allow sunlight to penetrate the chamber on the shortest days of the year around december 21st the winter solstice.
The view through the roof box slit after sunrise on the winter solstice.
This was done in order to to let in the light at the right time of the year and to conceal the opening otherwise.
Key piece of the newgrange design was a roof box or light box which controlled the way light came into the passage.
O kelly termed the roof box is one of the most celebrated features of the passage tomb at newgrange.