Web Tools:

• Wikipedia: Hebrew and English

• Wolfram Alpha: http://www.wolframalpha.com/ (online advanced calculator based on Mathematica)

• Google Translate: http://translate.google.com/

• Pixlr OnLine PhotoEditor: http://pixlr.com/editor/

• Image Converter: https://convertio.co/webp-jpg/ 

• Icon creation and image conversions:  https://www.icoconverter.com/ 

• Flip Hebrew and Gibberish to Hebrew converters: www.pixiesoft.com/flip/

• Nakdan - adding Hebrew reading  marks: https://www.nakdan.com/Default.aspx 

• Web Colors - Tables and RGB Values: https://en.wikipedia.org/wiki/Web_colors 

• Video Downloaders and Converters : עזרה:ויקישיתוף/העלאת קבצים/העלאת סרטונים 

• Adobe On-Line Video Tools: trimmer (time domain),  cropper (spatial domain)

LaTeX:

LaTeX is a powerful open-source tool for writing well-designed professional scientific documents and books. 

• The LaTeX project: https://www.latex-project.org/

• LaTeX Help Manuals: Writing Math, (Long) List of Symbols and Introduction Manual

• WikiBooks LaTeX:  https://en.wikibooks.org/wiki/LaTeX

• LaTeX Stack Exchange – online LaTeX community, forum and lots of Q&A: https://tex.stackexchange.com/

• Hebrew in LaTeX (files): source code in TEX and how it looks in PDF

• Hebrew in LaTeX: https://tex.stackexchange.com/questions/403781/2017-hebrew-in-latex-for-windows

• Looking for a certain LaTeX symbol? Why not just draw it?

• Online LaTeX equation editors:  https://latex.codecogs.com/eqneditor/editor.php   and   https://latexeditor.lagrida.com/ 

• MiKTeX – open-source LaTeX engine and compiler for Windows: https://miktex.org/

Python:

Python is a programming language with great support in scientific programming (complex numbers are built in!) and many useful packages.

• Python official website: https://www.python.org/

• Visual Studio Code - Python editor and integrated development environment: https://code.visualstudio.com/ 

• NumPy (mathematics, arrays and matrix operations package) : https://numpy.org/

• SciPy (exact sciences and engineering package, based on NumPy): https://www.scipy.org/ 

• MatPlotLib (for creating graphic plots and visualize data): https://matplotlib.org/ 

• Pandas (data science): https://pandas.pydata.org/ and 10 minutes tutorial

• SymPy (symbolic mathematics): https://www.sympy.org/en/index.html 

• TensorFlow (for deep learning): https://www.tensorflow.org/ 

• List of awesome Python packages: https://github.com/vinta/awesome-python 

• StackOverflow Q&A: https://stackoverflow.com/questions 

• Tutorials by w3schools: Python , NumPy  , Pandas 

• Pandas tutorials: https://www.learndatasci.com/tutorials/python-pandas-tutorial-complete-introduction-for-beginners/ 

Mathematics:

• Tel Aviv University and TAU School of Mathematics main-page

• Wolfram Alpha: http://www.wolframalpha.com/ (online calculator based on Mathematica)

• MathStackExchange: http://math.stackexchange.com/ (Mathematics Q&A)

• MathOverflow: http://mathoverflow.net/ (Mathematical Research Q&A)

• Wolfram MathWorld: http://mathworld.wolfram.com/ (a free online Mathematics encyclopedia)

• GadiAl.net : a blog in Hebrew about Mathematics and Computer Science by Dr. Gadi Alexandrovich

YouTube channels about STEM - Science, Technology, Engineering and Mathematics:

• Veritasium: a YouTube channel about science (especially physics) and math

• 3Blue1Brown: a YouTube channel with visualizations and animations about mathematics, physics, and computer science

• Michael Penn:  a YouTube channel with short lectures (with a blackboard and colorful chalks) about mathematics 

• PhysicsWithElliot: a YouTube channel with lessons in Physics and Mathematical Physics

• Mind Your Decisions: a YouTube channel  with worked-out riddles and math problems

• Nancy Pi: a YouTube channel by a pretty cute MIT graduate who gives tutorials in basic calculus

Mathematical Humor:

• Mathematical Humor: Math Jokes Collection by Andrej and Elena Cherkaev

• Carl Friedrich Gauss Facts: amusing facts about probably the greatest mathematician

• MathStackExchange Collection: Fake Mathematical Proofs

• Jokes from Wolfram MathWorld: The Pizza Theorem

• A true story: Mathgen paper accepted! (That's Mathematics! Blog, September 2012)

• A true story: Court of Appeal DESTROYS teacher candidates who argued math is racist (YouTube)

• Piled Higher and Deeper: PhD Comics

• Fox Trot by Bill Amend: https://www.foxtrot.com/ 

• AI tried to create inspirational quotes and it went hilariously wrong: BuzzWorthy

Friends' and Colleagues' Websites:

• Dr. Naomi Oppenheimer:  GoogleSite Homepage and Research Group Website @ Wix

• The Lab podcast: three talks with Dr. Naomi Oppenheimer about Soft Matter Physics and Her Research (audio in Hebrew)

• MathKnight: User page at the Hebrew Wikipedia and GoogleSite

• Prof. Mikhail Borovoi: Academic Homepage at Tel Aviv University

• Dr. Thomas R. Holtz Jr. : Academic Homepage, Dinosaurs 104 and Dinosaurs News

• Ben-Dror Yemini: Facebook and GoogleDocs

• Oz Rittner's Israel's Nature Site

• Triceratops Facebook Page: https://www.facebook.com/Triceratops6 

• Crocodilians Hebrew Facebook page: https://www.facebook.com/CrocodiliansTaninim/ 

• Oxalis pes-caprae Facebook page: https://www.facebook.com/Oxalis-pes-caprae-חמציץ-נטוי-116274056593380 

Israel – Defense, Security, Politics and Actual Affairs:

Actual affairs

• • Israeli News Flashes from all the Israeli Media: https://news.fresh.co.il/  (in Hebrew)

  • Ben-Dror Yemini (journalist, publicist and lecturer): Facebook and GoogleDocs

  • Kalman Liebskind (journalist, publicist and investigative reporter): Facebook

  • Times of Israel: English, Hebrew, Arabic and French

  • Mida - Israeli Liberal-Conservative Magazine: https://mida.org.il/ (in Hebrew)

  • Galey Israel Radio: On-Line Radio and Soundcloud

Israel Defense and Security Forces

• • Israel Defense Forces  –  צבא ההגנה לישראל, צה"ל – IDF: Website Hebrew and English and Facebook Hebrew and English

  • IDF Combat Engineering Corps – חיל ההנדסה הקרבית: Facebook, Instagram and Palas Engineers Veterans Association 

  • Israeli Security Agency – שירות הביטחון הכללי – Shabak (Shin-Bet): Hebrew and English

  • Israeli Police – משטרת ישראל:  Official Website and Official Facebook

  • Israel Border Police – משמר הגבול:  Official Website and  Official Facebook

  • Israel's Counter-Terrorism Unit – ימ"מ – YAMAM: Official page in the Police website ,  Instagram and Unofficial Fan Page

Politicians, Ministers and Members of the Knesseth 

• • Naftali Bennett (New Right / Yemina), Prime Minister of Israel: Official Website, Facebook - Hebrew and English, 

  • Ayelet Shaked (New Right / Yemina),  Minister of Internal Affairs, f. Minister of Justice):  Facebook

  • Dr. Anat Berko (Ph.D, criminologist, terrorism researcher and scholar): Facebook

  • Prof. Arieh Eldad (M.D., medical doctor, physician, writer, publicist and satirist): Facebook

Other Websites:

Dinosaurs

• • Triceratops Facebook Page:  https://www.facebook.com/Triceratops6 

  • Dr. Thomas R. Holtz Jr. : Academic Homepage, Dinosaurs 104 and Dinosaurs News

  • GEOL 104: Dinosaurs - A Natural History: Video Lectures on YouTube by Dr. Thomas R. Holtz Jr.

  • Dr. Matt Wedel and Dr. Mike Taylor: SVPOW - Sauropod Vertebra Picture of the Week 

  • Scott Hartman's Skeletal Drawing: website of Dinosaurs diagrams

  • Paleoart by Raul Martin: https://www.raulmartin-paleoart.com/ 

  • Paleoart by Mohamad Haghani:  https://www.deviantart.com/haghani 

  • Paleoart by Julius Csotonyi: http://csotonyi.com/ 

  • Paleoart by Nobu Tamura: http://spinops.blogspot.com/ 

  • Dinosaur ASCII art: https://www.asciiart.eu/animals/reptiles/dinosaurs 

Miscellaneous

• • Tel Aviv University and TAU School of Mathematics main-page

  • The Academy of the Hebrew Language: https://hebrew-academy.org.il/ (Hebrew and English)

  • Israel's Wild Flowers ("צמח השדה"): Hebrew and English

  • Oz Rittner's Israel's Nature Site

  • National Geographic Society: https://www.nationalgeographic.com/ 

  • Biology Stack Exchange (Q&A forum): https://biology.stackexchange.com/

  • Maccabi Haifa Football Club: Official Homepage and Facebook and YouTube

  • Galitz Photography School: https://www.galitz.co.il/ 

  • "Maot" (Hebrew for "Money") Finances Lexicon: http://www.maot.co.il/ 

  • Agadmator's Chess Channel on YouTube: https://www.youtube.com/user/AGADMATOR 

  • Windows 10 Spotlight Images: https://windows10spotlight.com/ 

  • Amir Moyal - Humor, Linguistic Fun and Word Games: https://www.facebook.com/amir.moyal1 

  • Nature Picture Library: https://www.naturepl.com/blog/ 

Photo Credits: 

Triceratops - Zachi Evenor, Sideshow Triceratops - Hung Nguyen,  Creative Beast's Triceratops - Creative Beast Studio,  Argentinosaurus - Nobu Tamura,  Supersaurus - Steve Oc 86, Apatosaurus -  Sideshow Collectibles,  Triceratops - Sideshow Collectibles,  Styracosaurus - FafnirX,  Ankylosaurus - Papo Toys, Tyrannosaurus - RJ Palmer