A database tracks comprehensive K-12 school shooting incidents, including all instances of guns being fired, brandished, or bullets hitting school property. The database encompasses various scenarios like gang violence, domestic incidents, sports event shootings, and accidents, documenting the full scope of gun-related incidents on school grounds.
An analysis debunking claims about extremely high IQ scores (160+) reveals that such measurements become increasingly unreliable and meaningless at higher ranges. Historical genius figures like Einstein likely had more modest IQs around 120-130, with test scores being highly variable and practice-dependent. The correlation between IQ and real-world outcomes diminishes significantly beyond certain thresholds.
A developer shares their experience building a minimalist compiler called TinyCompiler for a custom programming language 'wend' over a weekend. The project aims to translate 'wend' code into GNU assembly while maintaining a codebase of around 500 lines of Python, serving as an educational exploration of compiler theory.
PAROL6 is an open-source, 3D-printed desktop robotic arm designed to match industrial robot standards in mechanics, control, and usability. The project provides comprehensive documentation, building instructions, and control software under GPLv3 license, enabling users to build and operate their own 6-axis robot for educational and small-scale automation purposes.
Jane Street introduces Figgie, a fast-paced trading simulation game that teaches market dynamics while providing entertainment value.
A Denver couple transformed discarded plastic cups from Hasbro into a global sport phenomenon called 'Sport Stacking', investing their life savings of $43,000 in 1998. Through strategic marketing, school demonstrations, and competition infrastructure, they built Speed Stacks LLC into a successful business that reached thousands of schools worldwide and garnered mainstream media attention.
A comprehensive guide outlines best practices for clear mathematical handwriting, focusing on distinguishing between similar-looking characters across Roman letters, numbers, and Greek alphabet. The recommendations emphasize specific modifications and writing techniques to prevent ambiguity in technical notation, particularly important for engineering, science, and mathematics students.
Research comparing arithmetic skills between Indian children working in markets and those attending school reveals a stark divide in mathematical abilities, with working children excelling at complex real-world calculations but struggling with basic academic math, while school children show the opposite pattern. Working children demonstrated superior mental arithmetic and problem-solving in market contexts, but only 32% could solve basic written division problems, highlighting a critical gap between practical and academic mathematics education.