
Lenticular clouds

Earth as seen from Saturn, 898 million miles away
(http://www.jpl.nasa.gov/spaceimages/details.php?id=PIA17171)

The largest gathering of hot air balloons in the world in Chambley, France


I am the first pig to fly.
“In 1909, in a jokey attempt to prove that pigs can take flight, the pioneer aviator Baron Brabazon of Tara, better known to his friends as John Theodore Cuthbert Moore Brabazon, took a piglet aloft in his private biplane, strapped into a wastepaper basket.”
(Quote source http://www.phrases.org.uk/meanings/pigs-might-fly.html)
(Image source http://i.imgur.com/xY2lhBy.jpg)
(Via http://www.reddit.com/r/pics/comments/1klm18/i_am_the_first_pig_to_fly_4th_november_1909/)

Cross section of a fragmentation grenade
(wiki http://en.wikipedia.org/wiki/Fragmentation_grenade)