That nonsensical expression is a palindrome, and anyone tickled by it might also be excited to learn we’re in the midst of a real-life “palindrome week.” Beginning on Monday, May 10, and running through Tuesday, May 19, every single day as written in the uniquely American month/day/year format will be a palindrome. Check it out: 7. What did the alien say when he heard that Tarzan raised Desi Arnaz’ rat? “Tah tdra, ehehneh wyasne ilaeh tdidt ahw.” 8. And, what may be the longest palindrome in the world, developed by computer scientist Peter Norvig, at 17,826 words and 74,633 letters: Eco-Friendly Corrugated Roof Sheets A man, a plan, a cameo, Zena, Bird, Mocha, Prowel, a rave, Uganda, Wait, a lobola, Argo, Goto, Koser, Ihab, Udall, a revocation, Ebarta, Muscat, eyes, Rehm, a cession, Udella, E-boat, OAS, a mirage, IPBM, a caress, Etam, FCA, a mica, Ojai, Lebowa, Yaeger, a barge, Rab, Alsatian, a mod, Adv, a rps, Ileane, Valeta, Grenada, Hetty, Fayme, REME, HCM, Tsan, Owena, Tamar, Yompur, Isa, Nil, Lorrin, Riksdag, Mona, Ronn, O’Conner, Kirk, an okay, Nafl, Lira, Robi, Rame, FIFA, a need, Rodi, Muharram, Ober, a coma, carri, Hwang, Taos,...