Watching the Watchers
· hackaday.com · popularity 20/100 · 0 similar stories today
Read the original at hackaday.com →
Summary
Although it used to be a much more rare event, now almost any time at dawn or dusk, provided clear weather, a human observer can walk outside, look up, and …read more
Found in: Hackaday. Rating basis: single outlet; outlet tier 2 (unlisted); 1 feeds; feed position 3.