Roberto Abraham Scaruffi

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What is an optimal way of getting rich? Joe McCracken, CEO - entrepreneur - solutions architect - adventurer - father 1k votes From my own experience. I was driven by the desire to be financially independent and not to have to work for someone else. I hated wasting my time doing someone else's wor... Read More » How did people store fresh milk in 1700s colonial America and in 1800s frontier America? Jon Mixon, Semi-pro historian. 102 votes Milk was not a commonly consumed beverage until the 19th century and even then it was risky drinking it prior to pasteurization (heating it to kill bacteria) and homogeniza... Read More » What are some potential low-cost businesses that can be started and operated by a teenager? Kurt Heinrich, Founder of eCommHub 3k votes You should definitely start a drop-ship business and sell things online. That's what I did. I started an online shop for iPod accessories and made $17,500 during my first C... Read More » How big is Graham's number? Matthew Handy 123 votes It’s tiny. Pathetically small. Almost every positive integer is larger than Graham’s number. Indeed, it’s incredibly easy to think of numbers which are larger: there are i... Read More » Where does the money go in a recession? Geoffrey Widdison, I know exactly enough about money to be dangerous. 6k votes Here's the thing about money: money isn't real. And I'm not saying that from a hippie, anti-materialist, counter culture perspective, I mean money is a purely theoretical ... Read More » When you were a young coder, what was the most difficult thing for you to learn and what was your most common coding mistake? Carlos La Borde, Software developer 63 votes Took me a while to really understand object oriented programming. It's one of those things that's pretty easy to learn from a teacher but a bit hard to grasp yourself, even... Read More » How does π appear in formulas unrelated to geometry? Alejandro Jenkins, Caltech PhD '06 (physics), Harvard AB '01 (physics & math) 102 votes In view of the various good answers that this question has already received here, allow me to pursue a slightly different tack. Let me formulate a simple one-dimensional p... Read More » If there is one brilliant hacker who can crack into any system, would the world be in danger? Jeff Nelson, Invented Chromebook. Former Math Phd student. 89 votes Even if Adrián Lamo is himself an expxerienced hacker and a moral person, the literal answer to the question is unequivocally yes. According to one DHS estimate, a nationa... Read More » How was SR-71 able to outrun SA missiles? Tim Hibbetts, A-6E, F/A-18C pilot 385 votes It's an issue with intercept geometry. The SA-2 missile had about Mach 3.5 worth of giddy-up versus the nominal Mach 3.2 of the SR-71. That's great, but the SAM had to laun... Read More » Why do individuals or families (such as the Walton family) need or deserve millions and billions of dollars in personal wealth? Rob Weir, Renaissance Dude 637 votes We justify it every time we buy something. If you don't think Steve Jobs should have had a lot of money, then you shouldn't have bought an iPhone. His wealth was correlated... Read More »