Ciro Santilli $$ Sponsor Ciro $$ 中国独裁统治 China Dictatorship 新疆改造中心、六四事件、法轮功、郝海东、709大抓捕、2015巴拿马文件 邓家贵、低端人口、西藏骚乱
🔗
🔗
Often just called collimated light due to the collimator being the main procedure to obtain it.
🔗
However, you move very far away from the source, e.g. the Sun, you also get essentially parallel light.
🔗
🔗
🔗

Ancestors

🔗