Best about the Spin Cone is the low-tech approach.

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Aaron Jesse, 47, said he had left work early for a round with friends at Westlake Golf Course and saw the low-flying plane hit a tree, spin around 180 degrees and land surprisingly gently.

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When a spinning ball hits a low friction surface such as grass, it will continue to spin.

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That's a great trade for the parent, says Joseph Cornell, who publishes Spin-Off Research from Chicago: Sell high, buy low.

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But the format, which also has a successful celebrity spin-off, has been criticised by some commentators as low-grade television and even cruel.

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Trott should have been dismissed on 13 when he prodded forward to the probing left-arm spin of Shakib, but debutant Jahurul Islam spilled a reasonably straightforward low chance at short leg.

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The smooth and immediate low-speed power delivery also makes the Electric Defender adept at climbing obstacles without having to spin its wheels unnecessarily, which can damage the environment.

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In reality the central bank will point to recent pockets of positive economic news, already low yields, which would arguably mitigate much of any lead they might take to encourage borrowing and might even spin the positive impact of the U.S. credit-rating downgrade.

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