Jim Sanborn's new piece, "Terrestrial Physics," reproduces early experiments in splitting the atom. Sanborn is the creator of Kryptos, discussed previously.
If you work at Langley and you need a break from actual intelligence gathering, you can always try to crack the code to the sculpture right outside the cafeteria window. Kryptos is a sculpture by James Sanborn located on the CIA grounds which contains a four-part coded message: sections 1-3 have been solved (with Sanborn admitting he made a typo in section 2). Perhaps you'd like to join Elonka (and the hive mind) in having a go at section 4.