10 Most Valuable Antique Lamps: Identification & Values Guide

Types of Antique Lamps: Identifying the Different Designs | LoveToKnow

The Historical Evolution of Lighting

Insane Northern Lights over Stonehenge last night. What looks like pure magic is actually physics stacked across the sky. Green auroras glow lowest, around 90–150 km above Earth, created when oxygen atoms are energized. Red auroras appear much higher, roughly 200–400 km up, where thinner air lets oxygen glow longer and deeper. Purple and violet tones form lower than green, about 80–100 km, caused by excited nitrogen. Blue hues emerge at the very lowest visible altitudes, near 80 km, also from ni

Wife of man who fought for 'Ancient Lights Law' recalls his efforts