An Interactive Introduction to Fourier Transforms.
Compute answers using Wolfram's breakthrough technology & knowledgebase, relied on by millions of students & professionals. For math, science, nutrition, history, geography, engineering, mathematics, linguistics, sports, finance, music…
An Interactive Visualization and Search Engine for the Stanford Encyclopedia of Philosophy
全球最大的中國古籍資料庫和檢索系統，將中國的古代哲學書及其相關的原典文獻加以電子化，用交叉索引等技術充分利用電腦的功能，給中外的學者提供更方便的方式來學習和研究這些古書。
Google Arts & Culture features content from over 2000 leading museums and archives who have partnered with the Google Cultural Institute to bring the world's treasures online.
The Collections database consists of entries for more than 480,000 works in the Musée du Louvre and Musée National Eugène-Delacroix.
James Webb Space Telescope
NASA.gov brings you the latest news, images and videos from America's space agency, pioneering the future in space exploration, scientific discovery and aeronautics research.
NASA's Eyes is a suite of 3D visualization applications that allows everyone to explore and understand real NASA data and imagery in a fun and interactive way. The apps are all run inside a regular web browser, so any device with an internet connection and a browser can run them.
Custom Apple Dictionary support dark mode and offline pronunciation
Tests relating to vocabulary of different languages.
全网收词量最多的离线词典，词频考纲标注（432万词条）
《语法俱乐部》- 旋元佑
一本 GPT4 生成的单词书📚，超过 8000 个单词分析，涵盖了词义、例句、词根词缀、变形、文化背景、记忆技巧和小故事 - Ceelog/DictionaryByGPT4
WantWords（原：万词王）是唯一支持中文及中英跨语言查询的反向词典系统，可以通过描述意思来查找词语。WantWords基于最先进的人工智能和自然语言处理算法实现，由清华大学自然语言处理实验室出品。
Powerful Free DeepL API, No Token Required.
