But the wind slides eastward over its opaque surface in vain, till it reaches the living surface beyond.
This is made possible by technology and the Internet, which is used to connect buyers and sellers worldwide and bring information (world commodity prices) to the far reaches of the globe.
From this point the " return " pipe drops, usually at the same rate as the flow pipe rises; and in due course the water reaches its starting point, the boiler, and is again heated and again circulated through the system.
Within French territory; the highest elevation therein, the Vignemale, in the centre of the range, reaches 10,820 ft.
Below Orleans it takes its course towards the south-west, and lastly from Saumtir runs west, till it reaches the Atlantic between Paimbceuf and St Nazaire.