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Media / Video
The NOVA series has hundreds of videos in various topics in the Natural Sciences. Use the search box to find relevant material.
Science Search Engines
Although you can try searching Google for your topic, you will probably find the following web search engines provide more relevant and accurate results.
Science Research searches over 300 databases in real time. This helps you to avoid outdated articles and spam. Also, many science databases are not indexed by Google. This search can search those as well.