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ClipConverter

Clip Converter is a free online media conversion application, which allows you to reocord, convert and download nearly any audio or video URL to common formats. Currently supported services: YouTube (720p, 1080p, 4K), Vimeo and many more. This free and fast converter allows you to watch your favorite YouTube videos offline on your PC, TV or nearly any other device.

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Contact General contact: info@clipconverter.cc Support: support@clipconverter.cc Imprint ClipConverter.cc is a project of: Lunaweb Lunaweb Ltd. Postbox 11 47 DE-85739 Garching Germany

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Ptable

Ptable is an interactive Web 2.0 periodic table. It provides dynamic layouts, property trend visualization, orbitals, thousands of isotopes, and 5 writeup sources. The application uses no Flash or images, giving all the scalability and accessibility of a normal web page (it can be viewed on any kind of computer and device).
The layout, unless differently specified by the user, automatically switch to fit the width of the screen. Using the check boxes at the top of the page allows to dynamically switch between various configurations (simple, with names, with electron configuration, and inline inner transition metals).
In addition to Wikipedia descriptions in all languages, write-ups, photos, videos, and even podcasts are offered in the first tab's dropdown. Write-up windows can even be torn off or docked to the edges to allow simultaneous use of the table while reading.
Data is acquired from primary sources and curated libraries. Layout and presentation were reviewed by the world's foremost periodic table academic, Eric Scerri. Translations and non-English element names, however, should be considered no more reliable than Wikipedia.
Search (into the box at the top right) can be performed by name, symbol, or atomic number. Advanced searches work, for example, on the atomic weight, number of orbitals, etc.
Most browsers, tablets, and phones can store the site and its data for use offline. Firefox prompts you with a notification bar at the top while Chrome and Safari directly save it.
Full descriptions in 40 languages from Wikipedia.

LearnBoost

LearnBoost’s is a free all-in-one solution allowing teachers to manage their classroom by offering a gradebook, a software for managing and creating lesson plans, tracking attendance, maintaining schedules, sharing contents with parents or students, integrating Google Apps including calendars, tagging of Common Core Standards, and more. It is available in 11 different languages.

Scratch

Scratch is a programming language that makes it easy to create animations, interactive stories, animations, games, music, and art. The outcomes can be stored and shared on the web within the Scratch system.
It is not only an ideal tool for the creation of simple and attractive interactive and/or animated learning objects, but it also serves as a learning instrument for young people. By using Scratch learners learn not only to create and share Scratch outcomes but more importantly they learn mathematical, logical and computational ideas, while also learning to think creatively, reason systematically, and work collaboratively.
Scratch is at first sight a bit difficult to learn, but there is a (short and simple) manual that helps everyone getting started within minutes. It is not a full blown animation tool but it is a lot of fun and very rewarding to work with.
Scratch is developed by the Lifelong Kindergarten Group at the MIT Media Lab, with financial support from the National Science Foundation, Microsoft, Intel Foundation, MacArthur Foundation, Google, Iomega and MIT Media Lab research consortia.

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Browser Installer available for Mac OSX 10.4 or later, Windows 2000, XP, Vista, and 7 and with Ubuntu version 9.04 and later

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