Aerogel is the least dense substance ever created, and is used in NASA space suits, and to make the world's lightest ping-pong ball...
posted by arvana
1 decade 5 years 6 months 1 week ago • 10,060 views
The Meaning of Life
Created: 1 decade 6 years 3 months 2 weeks ago
Updated: 8 years 1 week ago
Views: 9,811
Updated: 8 years 1 week ago
Views: 9,811
existence is meaningless?
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1 decade 5 years 6 months 1 week ago • 10,060 views