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Tips On Choosing Blue Tooth Enabled GPS Devices ... Blue Tooth provides a way to connect and exchange information between personal devices such as mobile phones, laptops, PCs and PDAs over a secure, globally unlicensed short-range radio frequency... Generally, Blue Tooth is a standard and communications protocol primarily designed for devices that require low power consumption and short range communication... Since Blue Tooth is a wireless technology, it allows devices to exchange information with each other without the need for messy and unwieldy wires....

How prone poor Humanity is to dam up the minutest remnants of its freedom, and build an artificial roof to prevent it looking up to the clear blue sky.
—E.T.A.W. (Ernst Theodor Amadeus Wilhelm)

He’s under a haycock
Fast asleep.
Will you wake him?
No, not I,
For if I do,
He’s sure to cry.
—Mother Goose (fl. 17th–18th century. Little Boy Blue (l. 7–12)

The sky was as full of motion and change as the desert beneath it was monotonous and still,—and there was so much sky, more than at sea, more than anywhere else in the world. The plain was there, under one’s feet, but what one saw when one looked about was that brilliant blue world of stinging air and moving cloud. Even the mountains were mere ant-hills under it. Elsewhere the sky is the roof of the world; but here the earth was the floor of the sky. The landscape one longed for when one was away, the thing all about one, the world one actually lived in, was the sky, the sky!
—Willa Cather (1873–1947)