Author: Guest authors

LAGEOS: An Earth Science Mission Built for Enduring Precision

On May 4, 1976, a spacecraft resembling a disco ball entered orbit almost 3,700 miles (6,000 kilometers) above Earth. This shiny, two‑foot‑wide (60‑centimeter) sphere called the Laser Geodynamics Satellite, or LAGEOS, is covered with 426 retroreflectors—small mirrored prisms designed to bounce laser light directly back to where it came from. Beneath its aluminum exterior sits […]

Book Review: Class 43 Locomotives in Scotland – The High Speed Trains by Colin J. Howat

Class 43 Locomotives in Scotland illustrates their use on services throughout the country since their debut in the late 1970s.

3-day Branch Line Society tour to Scotland in June

For three days in June, the Branch Line Society is running a Class 50-hauled rail tour to Scotland; “The Lord of the Isles”.