Codex on the Flight of Birds of a kite as seeking a wind current. When the winds are high, one will see the bird very high in the sky, but when the winds are low, the bird stays closer to the ground. Leonardo describes how a bird rests in the air, after flapping its wings to gain altitude, by gliding downward to the ground. Folio 6 contains multiple diagrams of birds flying and their bone structure, and all of the commentary is on flight and how birds fly the way that they do. Leonardo starts off by describing how a bird ascends or descends in different
Twitter Delphin (known on Twitter as @zzap) and a Scandinavian developer, Magnus Holm, both claim to have modified a related exploit found by another user (possibly Masato Kinugawa) who was using it to create coloured Tweets. Kinugawa, a Japanese developer, reported the XSS vulnerability to Twitter on August 14. Later, when he found it was exploitable again, he created the account 'RainbowTwtr' and used it to post coloured messages. Delphin says he exposed the security flaw by tweeting a JavaScript function for "onMouseOver", and Holm later created and posted the XSS Worm that automatically re-tweeted itself. Security firm Sophos reported that