/u/fishboy2000's posts
Mark as read: Add to a list
Mark as read: Add to a list
Mark as read: Add to a list
Mark as read: Add to a list
Mark as read: Add to a list
What is the maximum height a (weather) balloon can reach and why do we need such large rockets to launch something into space?
Mark as read: Add to a list
Mark as read: Add to a list