New SI Units Set to Redefine Kilogram and Others Based on Nature's Constants

Tragic End for the Boy in the Bubble After Hopeful Transplant Operation

US Dominates 1976 Nobel Prizes Across All Categories Except Peace Award

One hundred and sixteen young children died on this day when an avalanche of coal tip waste and debris thundered down a hillside and engulfed their school.

Revolutionary Trimline Telephone Transforms Communication with Stylish Design and Convenience

Revolutionary Photocell Device Debuts in 1925, Transforming Object Detection and Door Automation

Historic 1915 Radiotelephone Tests Connect U.S. and France, Paving Way for Global Communication

Revolutionary Liquid Air Technology First Reported in 1895: Insights from New Book

Edison's Breakthrough: The First Durable Electric Light Bulb Revolutionizes Home Lighting

On October 21, 1861, Union troops suffer a devastating defeat in the second major engagement of the Civil War.