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NOAA has the primary responsibility for providing tsunami warnings to the Nation, and a leadership role in tsunami observations and research.

Going around the force used by an attacker is an important part of your Aiki Jutsu Do training. That is how you can defend yourself from a 6 ft tank.

A collection of artwork for schoolkids and others that is free of copyright concerns as well as safe from inappropriate images.

Desperado - Lucas Imbiriba on acoustic guitar - Canción del Mariachi written by Los Lobos.

How to Write a Book: 13 steps from a bestselling author. Writers fail not because of their writing—but because of a lack of preparation.

PHP is a widely used general-purpose scripting language that is especially suited for Web development and can be embedded into HTML. If you are new to PHP and want to get some idea of how it works, try the introductory tutorial.

An extensive mathematical resource, provided as a free service to the world's mathematics and internet communities. Features a number of innovative interactive elements such as The MathWorld Classroom, extensive citations to books and articles.

NASA satellites give us a global view of what’s happening on our planet. You can explore how key parts of Earth’s climate system change from month to month.

The governing body for the game of tennis in the UK. News, tournaments, rankings, member clubs directory, membership information and coaching.

Natalie Imbruglia - Torn (Official Video)