Jim Sanborn's new piece, "Terrestrial Physics," reproduces early experiments in splitting the atom. Sanborn is the creator of Kryptos, discussed previously.
Christopher Farmer of Opord Analytical has just posted his solution (PDF) to part 4 of the much studied "Kryptos" cipher. He's recently cracked Zodiac Killer ciphers thought unsolvable for nearly 40 years and has a theory (PDF) about the Zodiac Killer's possible identity that is hard to be ignored. Mr. Farmer freely shares his many discoveries on his website's forum board.
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.