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 8 months 2 weeks ago • 10,061 views
The Meaning of Life
Created: 1 decade 6 years 6 months ago
Updated: 8 years 2 months 3 weeks ago
Views: 9,867
Updated: 8 years 2 months 3 weeks ago
Views: 9,867
existence is meaningless?
Displaying 1 of the 879 videos in this playlist:
1 decade 5 years 8 months 2 weeks ago • 10,061 views