TGINSIGHT SIMILAR POSTS
Source channel @githubtrending · Post #14822 · Jun 12
#typescript#anki#chatgpt#deepseek#electron#evernote#knowledge_base#local_first#markdown#note_taking#notes_app#notion#obsidian#ocr#ollama#openai#pdf#s3#self_hosted#webdav SiYuan is a privacy-first personal knowledge management tool. It allows you to organize your thoughts and notes in a secure way, even offline. You can use features like block-level references, Markdown editing, and mathematical formulas. It also supports AI tools and has apps for Android, iOS, and HarmonyOS. SiYuan is open source and free for most features, making it a great choice for managing your personal knowledge securely. https://github.com/siyuan-note/siyuan
Search: #ancientscience
@googlefactss · Post #40236 · 12/02/2025, 07:04 AM
🌍 Over 2,200 years ago, the Greek mathematician Eratosthenes calculated Earth’s circumference using only a stick and his brain — and he was almost exactly right! 📏 By observing shadows in two cities, he calculated the Earth was about 40,000 km around. Ancient genius at its finest! [Source] @googlefactss#AncientGreece#ScienceHistory#Eratosthenes#EarthCircumference#AncientScience