YT: Sometimes, against a uniform, bright background such as a clear sky or a blank computer screen, you might see things floating across your field of vision. What are these moving objects, and how are... continue reading
posted by Zawash 9 years 12 months ago • 681 views • 4:05TED talks
Created: 1 decade 7 years 3 months 1 week ago
Updated: 7 years 5 months 2 weeks ago
Views: 18,573
Updated: 7 years 5 months 2 weeks ago
Views: 18,573
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