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Mathematics, Nature & Formal Sciences

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Software

  1. open source/GPL: GNU Octave
  2. oss/GPL: Sagemath
  3. Maple (free trial)
  4. MathLab (need to register with email)
  5. Mathematica (at cost)
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Blogs, Docs & Websites

  1. Deutsch, M. lernen: mathepedia.de, matheguru, studyflix.de/math, matheretter.de/wiki/
  2. math.libretexts.org, math formulae: cuemath.com
  3. Eric Weisstein´s World of Science: mathematics, physics, chemistry, astronomy, biographies
  4. khanacademy.org - physics
  5. de: openHPI: das Hasso-Plattner-Institut über Quantenalgorithmen, Baysian Data Analysis, Programmierung
  6. de: studyflix.de/ingenieurwissenschaften
  7. the ABC of nuclear science - Lawrence Berkeley National Laboratory
  8. Organic Chemistry Help
  9. WiredChemist: Instructional
  10. IAPWS: Int. Assoc. on Properties of Water and Steam, technical guides
  11. dmishin.blogspot.com: Random Thoughts and Fancy Math
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Online Calculators, Misc

  1. Online Calculator - math, finance, chemistry, measure conversion, etc.
  2. Greek Alphabet
  3. Periodic Table: the chemical elements
  4. WolframAlpha: find formulae by text search
  5. kiddle/kpedia: science lexicon for kids
  6. TI Calculators: ticalc.org/pub, some more TI-82 progs
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  1. scholar.google.com - scientific article search
  2. BASE | Bielefeld Academic Search Engine
  3. OpenKnowledgeMaps - create a knowledge map on a specific science topic
  4. oasis.geneseo.edu - find open access books and resources
  5. pubmed.ncbi.nlm.nih.gov: 34 million citations for biomedical literature from MEDLINE, life science journals, and online books
  6. DOAJ: directory of open access journals and articles
  7. ask authors for article: ResearchGate, shadow services: Sci-Hub, LibGen
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Journals, Conferences, Organizations

  1. Chemistry Conferences, org-links
  2. PLOS Public Library of Science - open access publisher
  3. CCSE: Journals (Canadian Center Sci. & Edu.), Asian Journal of Chemistry
  4. MDPI - open access journal publisher
  5. WiredChemist: Links: Journals, Opportunities, Instructional, Databases
  6. ALPO: Association of Lunar & Planetary Observations
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News, Reading & Images

  1. all disciplines: Scientific American, Spektrum.de,
  2. Quanta Magazine - physics, mathematics, biology, computer science
  3. popular science: newscientist.com
  4. National Geographic
  5. nature
  6. phys.org - physics news
  7. ScienceDaily - latest research news
  8. physics central
  9. NASA: visible earth
  10. NASA astronomy picture of the day archive
  11. crossref: News in English - Science & Technology🗞


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