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Orientation on the seas and oceans. Travel Tips

Tourist tips

Directory / Tourist tips

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Как navigate the seas and oceans?

The appearance of a diver - a cormorant and a common aurelia jellyfish near unfamiliar shores warn of the proximity of reefs.

In the Bering Sea, orientation to large bird colonies.

The common tern is no more than 20 miles away from the tropical islands of the Pacific Ocean (1 nautical mile = 1852 m), the brown fulmar 30 miles, the white tern -100 miles.

When these birds quickly, without deviating anywhere, fly high above the sea to the shore before the evening hours, a storm should be expected.

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High-voltage ultra-bright LED drivers from IR 18.06.2007

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An external high-level bootstrap circuit controls the operation of the key flyback stage at frequencies up to 500 kHz. The low level driver is used when the synchronous rectifier is running. The IRS254x series ICs compensate for variations in LED parameters to implement control devices with improved accuracy and high internal stability.

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