Plurrrr

Thu 14 Jul 2022

Making Heatmaps

In this post, I'll walk you through building a heatmap using freely available CSV and geospatial data. This post will make use of Python, ClickHouse and QGIS, a toolchain that is both open source and free of charge.

Source: Making Heatmaps, an article by Mark Litwintschik.

A Spectre is Haunting Unicode

In 1978 Japan's Ministry of Economy, Trade and Industry established the encoding that would later be known as JIS X 0208, which still serves as an important reference for all Japanese encodings. However, after the JIS standard was released people noticed something strange - several of the added characters had no obvious sources, and nobody could tell what they meant or how they should be pronounced. Nobody was sure where they came from. These are what came to be known as the ghost characters (幽霊文 字 ).

Source: A Spectre is Haunting Unicode, an article by Paul O'Leary McCann.