https://www.pistack.xyz/tags/units/ Recent content in Units on Pi Stack Hugo en-us Sun, 28 Jun 2026 00:00:00 +0000 https://www.pistack.xyz/posts/2026-06-28-cpp-units-of-measurement-libraries-mp-units-nholthaus-boost-units/ Sun, 28 Jun 2026 00:00:00 +0000 https://www.pistack.xyz/posts/2026-06-28-cpp-units-of-measurement-libraries-mp-units-nholthaus-boost-units/ <h2 id="introduction">Introduction</h2> <p>In 1999, NASA lost the $125 million Mars Climate Orbiter because one team used metric units (newton-seconds) while another used imperial units (pound-seconds). The spacecraft entered the Martian atmosphere at the wrong altitude and disintegrated. Twenty-five years later, unit conversion errors still cause bugs in everything from medical device firmware to financial trading systems.</p>