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Slate is a fine-grained, foliated, homogeneous, metamorphic rock derived from an original shale-type sedimentary rock composed of clay or volcanic ash through low ...
The world's biggest consumer of slate is France, followed by the UK, USA and Germany. In 2012, Spain produced more than 580,000 tonnes (570,000 long tons; 640,000 short tons) of slate worth about $380 million. This made it the largest slate producer in the world, followed by China and Brazil. [3]
Slate has been quarried in north Wales for almost two millennia with the Segontium Roman fort at Caernarfon being roofed by local slate in the late second century. Export of slate has been carried out for several centuries, which was recently confirmed by the discovery in the Menai Strait of the wreck of a 16th-century wooden ship carrying finished slates.
The Greaves Welsh Slate Company produces roofing slates and other slate products from Llechwedd, and work also continues at the Berwyn Quarry near Llangollen. The final large-scale underground working to close was Maenofferen, associated with the Llechwedd tourist mine, in 1999: part of this site, now effectively amalgamated with Votty / Bowydd ...
BSc meteorologist Janice Davila tells Bored Panda that one of the most unknown facts from her field of expertise is that weather radars are slightly tilted upward in a half-degree (1/2°) angle.
The Slate Industry in the Nantlle Valley was the major industry of the area. The Nantlle Valley is the site of oldest slate quarry in Wales at Cilgwyn, and during the nineteenth and twentieth centuries it was a major centre of the Slate industry in Wales. The quarries of the area are a World Heritage Site. [1]
With home prices still on the rise in every region of the U.S., 63% of homeowners say they'd rather remodel their homes than move to renovated homes, according to an October survey by Clever Real...
Image credits: amazing_facts_259 “Any activity that engages your cognitive skills can be called a brain exercise. These activities stimulate the brain and help develop memory skills,” explains ...