conceivably
71Molecular nanotechnology — Part of a series of articles on Molecular Nanotechnology …
72One-time pad — Excerpt from a one time pad In cryptography, the one time pad (OTP) is a type of encryption, which has been proven to be impossible to crack if used correctly. Each bit or character from the plaintext is encrypted by a modular addition with a bit …
73Physical constant — A physical constant is a physical quantity that is generally believed to be both universal in nature and constant in time. It can be contrasted with a mathematical constant, which is a fixed numerical value but does not directly involve any… …
74Poltergeist — Audio|De poltergeist.ogg|Poltergeist (from German poltern , meaning to rumble or make noise, and Geist , meaning ghost , spirit , or embodiment ) denotes a demonic spirit or ghost that manifests itself by moving and influencing… …
75Protagoras — Infobox Philosopher region = Western Philosophy era = Pre Socratic philosophy color = #B0C4DE image caption = Bust of Protagoras name = Protagoras (Πρωταγόρας) birth = ca. 490 death = 420 BC school tradition = Ionian Philosophy main interests =… …
76Radio Row — The phrase Radio Row is a nickname for an urban street or district specializing in the sale of radio and electronic equipment and parts. Radio Rows arose in many cities with the 1920s rise of broadcasting and declined after mid century when… …
77Scientific method — …
78Spam (electronic) — An email box folder littered with spam messages A typical spam m …
79AGM-48 Skybolt — The Douglas GAM 87A Skybolt was an air launched ballistic missile (ALBM) developed during the late 1950s. It was intended to provide a mobile basing for the USAF s ICBM missile force by mounting them on heavy bombers rather than in fixed missile… …
80Solar sail — Solar sails (also called light sails or photon sails, especially when they use light sources other than the Sun) are a proposed form of spacecraft propulsion using large membrane mirrors. Radiation pressure is about 10 5 Pa at Earth s distance… …
