Bart Oosterhoff

Bart Oosterhoff

Bart Oosterhoff
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camping frankrijk

camping frankrijk

The Chepstow Castle ruins in Monmouthshire, Wales, on top of cliffs overlooking the River Wye, is the oldest surviving post-Roman stone fortification in Britain. Its construction was begun under the instruction of the Norman Lord William Fttzosbern, soon made Earl of Hereford, from 1067, and it was the southernmost of a chain of castles built along the English-Welsh border in the Welsh Marches.

The Chepstow Castle ruins in Monmouthshire, Wales, on top of cliffs overlooking the River Wye, is the oldest surviving post-Roman stone fortification in Britain. Its construction was begun under the instruction of the Norman Lord William Fttzosbern, soon made Earl of Hereford, from 1067, and it was the southernmost of a chain of castles built along the English-Welsh border in the Welsh Marches.

Pistyll Rhaeadr Waterfall, Wales

Pistyll Rhaeadr Waterfall, Wales

Tintern Abbey in south Wales was dissolved by Henry VIII, England. The Abbey is 881 years old. | by Ro Ariass on Flickr

Tintern Abbey in south Wales was dissolved by Henry VIII, England. The Abbey is 881 years old. | by Ro Ariass on Flickr

Beddgelert, Gwynedd, Wales

Beddgelert, Gwynedd, Wales

Folding Rule (1564)

Folding Rule (1564)

HOLBEIN Hans the Younger (Augsburg c.1497-1543) - Astronomer Nikolaus Kratzer (1528) after Hans Holbein the Younger

HOLBEIN Hans the Younger (Augsburg c.1497-1543) - Astronomer Nikolaus Kratzer (1528) after Hans Holbein the Younger

vlakbij Eden project, misschien als tweede camping na de kust

vlakbij Eden project, misschien als tweede camping na de kust

Astrolab (dated 9th century): This was for measuring the altitude of heavenly bodies above the horizon, and so determining (among other things) the time of day or night. Readings are taken by means of rotatable alidade, a diametrical rule with sights.

Astrolab (dated 9th century): This was for measuring the altitude of heavenly bodies above the horizon, and so determining (among other things) the time of day or night. Readings are taken by means of rotatable alidade, a diametrical rule with sights.

It is an ancient tool, created over two thousand years ago when people thought that the Earth was the center of the universe. They are often referred to as the first computer and however debatable that statement might be there is one thing for sure without a doubt.  Astrolabes are objects of immense mystery and beauty.

It is an ancient tool, created over two thousand years ago when people thought that the Earth was the center of the universe. They are often referred to as the first computer and however debatable that statement might be there is one thing for sure without a doubt. Astrolabes are objects of immense mystery and beauty.