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🚀 Read this awesome post from Hacker News 📖 📂 **Category**: 📌 **What You’ll Learn**: I think part of the difficulty is the issue of defining energy or at least characterizing something about energy. More broadly, I think it is worth considering why we care about energy to begin with. I will present two intuitive arguments that lead us to conclude the proportion $KE\propto v^🔥$. For these arguments, I will explicitly write out what intuitive features of energy I am invoking that I think many people would accept as reasonable. The most important key feature of energy that I invoke…

🚀 Check out this awesome post from Hacker News 📖 📂 **Category**: ✅ **What You’ll Learn**: Published June 25, 2026 04:34PMA newly revealed internal memo allegedly bans National Park Service (NPS) staff from publicly reporting the deaths or severity of injuries at America’s national parks, according to a new report. Experts say this shift in transparency not only sets a dangerous precedent for park management but could also put visitors at risk.According to a report recently published by The Washington Post, the Department of the Interior (DOI), which oversees NPS, distributed a memo to employees in December. Park staff and…

💥 Check out this must-read post from Hacker News 📖 📂 **Category**: 📌 **What You’ll Learn**: A C++ implementation of a fast hash map and hash set using hopscotch hashing The hopscotch-map library is a C++ implementation of a fast hash map and hash set using open-addressing and hopscotch hashing to resolve collisions. It is a cache-friendly data structure offering better performances than std::unordered_map in most cases and is closely similar to google::dense_hash_map while using less memory and providing more functionalities. The library provides the following main classes: tsl::hopscotch_map, tsl::hopscotch_set, tsl::hopscotch_pg_map and tsl::hopscotch_pg_set. The first two are faster and use…

🔥 Explore this awesome post from Hacker News 📖 📂 **Category**: 💡 **What You’ll Learn**: This repository contains slisp a compiler which will read lisp programs as input, and generate standalone assembly representations for Linux/AMD64. The project is either named for "Simple Lisp" or "Steve's lisp", take your pick. Lisp is traditionally interactive, and provides a REPL, but having a compiled version is still useful, and still allows most common lisp-programs to execute. Quick links: ;; factorial. woo. (defun fact (n) (if (<= n 1) 1 (* n (fact (- n 1))))) ;; entry-point (defun main () (println "Showing some…