Roberto Abraham Scaruffi

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How scientifically plausible is Jurassic Park? Brett Barbaro, Ph.D. in Biological Sciences (emphasi... 26 votes I felt obligated to reply because I take issue with the current most popular reply to this question. Sorry, Matan Shelomi - it's greater than zero percent. It might be fun ... Read More » Given the following  matrix , how can I prove that there exists a positive integer  such that ? Brian Bi, software engineer and all-around nerd 114 votes Here's how you can prove this without doing any calculations. Note that ... Read More » Why are the PLA soldiers generally very skinny? What do you think of the PLA's solo combat ability? Andy Lee Chaisiri, Game Designer, Art Director, & Pokemo... 89 votes During World War 2 the average American soldier was... -5' 8" (172cm), 144lb (65kg) (info from Tailor to Millions) According to Does Size Really Matter? the average US mar... Read More » I walk into a restaurant for lunch and my check comes to π dollars. The restaurant will only accept cash for the exact amount -- nothing more, nothing less. What are my options? Ben Reimers, Aussie iOS and web developer 7.4k votes Ask to see the full bill since the one they gave you clearly doesn't contain all of the digits of Pi required for you to make proper payment. When the room fills with recei... Read More » What are basic artificial intelligence projects for beginners? Monica Anderson, Researching Holistic AGI and Deep Lea... 79 votes Take a book in electronic format like a Jane Austen book from project Gutenberg. Take the last chapter in that book. Remove all the spaces. Now write a computer program to... Read More » What's the intuition behind the equation ? Sridhar Ramesh, Logician 348 votes (In the same vein as at How would you explain why 0+1-2+3-4… equals ¼ to a ninth grader?) The sense in which 1 + 2 + 3 + 4 + ... = -1/12 is this: ... Read More » Was Christopher Columbus alone in thinking that the world was spherical? Tim O'Neill, Atheist, Medievalist, Sceptic and ama... 786 votes No, he wasn't. In fact, the idea that anyone in his time believed the earth was flat is a complete fiction, invented in 1828. There was a very minor debate in Columbus'... Read More » What are some lesser known techniques of integration? Ng Boon Leong, Maths and Physics in college, former ... 182 votes ... Read More » What can I do if I don't like my name? Ben Parr, Co-founder, DominateFund; Author, Cap... 1.8k votes Do what the actors do: use a stage name. Take this man, for example: ... Read More » What do linguists do? Marc Ettlinger, linguistics PhD @ Berkeley, neuroscie... 681 votes Linguists are often erroneously* asked, "how many languages do you speak?" when people find out they're linguists, so thank you for the chance to answer this question. But ... Read More »