The 
Elder Wand and Resurrection Stone may still be locked away in J. K. Rowling’s imagination, but the third Deathly Hallow made a rare appearance on stage in Long Beach this week.
Baile Zhang, an assistant professor of physics at Nanyang Technological University in Singapore, showed off his “invisibility cloak” on Monday at the TED2013 talks in Long Beach.
Chris Morris: Journalist 