Browser extension and API for finding legal open-access versions of scholarly papers.
PDF Drive is a free online platform that provides access to downloadable PDF eBooks across categories including drawing, comics, science and health. It offers faster previews, a personalized experience, and the ability to convert files to EPUB or MOBI format, with options to send downloads to email or Kindle. A premium account option is also available.
Sci-Hub is a platform that provides access to academic research literature, with a database of over 88 million documents covering most papers published up to 2022 in major academic outlets. It also offers Sci-Bot, a question-answering tool that uses its database to generate cited, scientifically grounded responses to research questions.
JSbooks is a showcase of free ebooks about JavaScript. It lists popular free JavaScript books and resources, letting visitors browse publications for learning the language without spending money. Visitors can filter by skill level and add books through GitHub.
SKiDL is a Python module for describing the interconnections of electronic circuits and components. The resulting Python program performs electrical rules checking and outputs a netlist used as input to a PCB layout tool.
Av8n.com hosts the site of John S. Denker, including See How It Flies, a work on the perceptions, procedures, and principles of flight with 20 chapters and over 200 illustrations. It also offers more than 100 physics-related documents, additional flying-related documents, and notes on vision and image processing.
iNaturalist is a free, nonprofit social network for naturalists where users record observations of plants, animals, and fungi, share them with friends and researchers, and get identification suggestions confirmed by a global community. Observations become open data used by scientists and conservationists.
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PDF Drive is a free online platform that provides access to downloadable PDF eBooks across categories including drawing, comics, science and health. It offers faster previews, a personalized experience, and the ability to convert files to EPUB or MOBI format, with options to send downloads to email or Kindle. A premium account option is also available.
Sci-Hub is a platform that provides access to academic research literature, with a database of over 88 million documents covering most papers published up to 2022 in major academic outlets. It also offers Sci-Bot, a question-answering tool that uses its database to generate cited, scientifically grounded responses to research questions.
JSbooks is a showcase of free ebooks about JavaScript. It lists popular free JavaScript books and resources, letting visitors browse publications for learning the language without spending money. Visitors can filter by skill level and add books through GitHub.
SKiDL is a Python module for describing the interconnections of electronic circuits and components. The resulting Python program performs electrical rules checking and outputs a netlist used as input to a PCB layout tool.
Av8n.com hosts the site of John S. Denker, including See How It Flies, a work on the perceptions, procedures, and principles of flight with 20 chapters and over 200 illustrations. It also offers more than 100 physics-related documents, additional flying-related documents, and notes on vision and image processing.
iNaturalist is a free, nonprofit social network for naturalists where users record observations of plants, animals, and fungi, share them with friends and researchers, and get identification suggestions confirmed by a global community. Observations become open data used by scientists and conservationists.
