Blog : Doing Spy Stuff with Mathematica I was reading about the IT problems of the recently arrested, alleged Russian spies, and I wondered if they could have managed secret communications better with Mathematica. One of the claims was that they were using digital steganography tools that kept crashing. I wanted to see how quickly I could implement digital image steganography in Mathematica using a method known as “least significant bit insertion”. The idea of steganography is to hide messages within other information so that no one notices your communications. The word itself comes from a Latin-Greek combination meaning “covered writing”, from earlier physical methods that apparently included tattooing a message on a messenger’s head before letting him grow his hair back to hide it. In the case of digital steganography, it is all done in the math. The first thing that we have to do is to pick an innocent-looking image to transmit to our spy masters, perhaps via some public online forum. Here is all of that put together…
maps home page Down to: 6th to 15th Centuries | 16th and 19th Centuries | 1901 to World War Two | 1946 to 21st Century The Ancient World ... index of places Aegean Region, to 300 BCE Aegean Region, 185 BCE Africa, 2500 to 1500 BCE Africa to 500 CE African Language Families Alexander in the East (334 to 323 BCE) Ashoka, Empire of (269 to 232 BCE) Athenian Empire (431 BCE) China, Korea and Japan (1st to 5th century CE) China's Warring States (245 to 235 BCE) Cyrus II, Empire of (559 to 530 BCE) Delian League, 431 BCE Egyptian and Hittite Empires, 1279 BCE Europe Fertile Crescent, 9000-4500 BCE Germania (120 CE) Greece (600s to 400s BCE) Gupta Empire (320 to 550 CE) Han China, circa 100 BCE Hellespont (Battle of Granicus River, 334 BCE) India to 500 BCE Israel and Judah to 733 BCE Italy and Sicily (400 to 200 BCE) Judea, Galilee, Idumea (1st Century BCE) Mesopotamia to 2500 BCE Mesoamerica and the Maya (250 to 500 CE) Oceania Power divisions across Eurasia, 301 BCE Roman Empire, CE 12 Roman Empire, CE 150 Roman Empire, CE 500
Underground Cities: 3500 Years of Cappadocian Cave Homes Cities, empires and religions have risen and fallen around these unique underground havens once used by early Christians to hide from Roman armies, yet they remains occupied to this day – 100 square miles with 200+ underground villages and tunnel towns complete with hidden passages, secret rooms and ancient temples and a remarkably storied history of each new civilization building on the work of the last. The fields of architecture and urban design would do well to center their sustainable sights on this unique site – few structures outside of this area in Cappadocia have survived for so long. Some of these buildings go up to five full stories underground and date back to Roman times or beyond, though many caves were carved out by human hands long before their empire arrived. Centered in modern day Turkey, this region has passed between hands many times. While many buildings remain occupied, many more are now deserted – from homes to entire churches and underground cathedrals.
Vanishing Point: How to disappear in America without a trace Where there's water, life is possible. True, it may be very difficult and very hard to live, depending, but anyone who's driven, hiked, or camped in the American South West will have noticed that cities and ranches crop up where there's surface water or where there's been a well dug. Within the state of California, Nevada, Arizona, Utah, New Mexico, and Colorado, there are deserts, mesas, mountains, and forests where normally people never or rarely visit; not-so-secret places where there's water, access to a road within a day's hike, and where a fairly rugged individual may hide while remaining basically healthy, marginally well fed, and reasonably sane. In this section I'll look at two such environments, neither of which I would recommend, but one of which I'd suggest is a reasonable way to live in basic health while either on the run, hiding out from the law, old girl friends, the draft for an illegal war, putative wives and such. Where exactly? How I Would Do It Some Other Areas
Perseus Digital Library OkTrends Latin Poetry Podcast Abracadabra mortiferum magis est quod Graecis hemitritaeos vulgatur verbis; hoc nostrā dicere linguā non potuēre ulli, puto, nec voluere parentes. inscribes chartae quod dicitur abracadabra saepius et subter repetes, sed detrahe summam et magis atque magis desint elementa figuris singula, quae semper rapies, et cetera figes, donec in angustum redigatur littera conum : his lino nexis collum redimire memento. nonulli memorant adipem prodesse leonis. Quinctius Serenus Sammonicus, Liber Medicinalis 923-941 (ed. Vollmer in Corpus Medicorum Latinorum 3.2, Leipzig: Teubner, 1916). The work seems to date from the 2nd to the 4th centuries AD, and is usually assigned by scholars to around AD 200, based on the dubious identification of the author as Serenus Sammonicus, a scholar and moral critic of the age of Septimius Severus. Vollmer sensibly suggests linques or scribes for figes, which he believes is a corruption carried over from figura in the previous line. Here is my translation:
15 reasons Mr. Rogers was best neighbor ever Allen and Greenough's New Latin Grammar, Table of Contents Preface Part I - Words and Forms Letters and Sounds Words and Their Forms Declension of Nouns Inflection of Adjectives Inflection of Pronouns Conjugation of Verbs Particles Formation of Words Part II - Syntax Introductory Note The Sentence Nouns Adjectives Pronouns Verbs Particles Questions Construction of Cases Nominative Case Vocative Case Genitive Case Dative Case Accusative Case Ablative Case Time and Place Special Uses of the Prepositions Syntax of the Verb Moods Tenses Participles Gerund and Gerundive Supine Conditional Sentences Concessive Clauses Clauses of Proviso Clauses of Purpose Clauses of Characteristic Clauses of Result Causal Clauses Temporal Clauses Clauses with quin and quominus Substantive Clauses Indirect Discourse Intermediate Clauses Important Rules of Syntax Order of Words Prosody Quantity Rhythm Versification Early Prosody Miscellaneous