Get new Wikipedia articles popular on Hacker News - one email per week.
No spam. Unsubscribe anytime. · Privacy
A light pillar or ice pillar is an atmospheric optical phenomenon in which a vertical beam of light appears to extend above and/or below a light source. The effect is created by the reflection of light from tiny ice crystals that are suspended in the atmosphere or that compose…
A light pillar or ice pillar is an atmospheric optical phenomenon in which a vertical beam of light appears to extend above and/or below a light source. The effect is created by the reflection of light from tiny ice crystals that are suspended in the atmosphere or that compose…
Get new Wikipedia articles popular on Hacker News - one email per week.
No spam. Unsubscribe anytime. · Privacy