Roberto Abraham Scaruffi

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How did Olena Petrosyuk manage to visit 80+ countries? Olena Petrosyuk, Startup enthusiast and insane traveller (80+countries) on round-the-world trip 356 votes Ok, here goes the story. It all started with my dad. The most inspirational person I have ever met in my life. Born in a tiny village in Ukraine he had a big dream. To tr... Read More » Why is Hermione never attracted to Harry? Why Ron? Pallavi Chalasani 1.2k votes Thinking from hermoine's point of view- 1. She's too serious: Ron makes her laugh 2. She takes her self too seriously at times: he makes fun of her, kind of grounds her, b... Read More » Why does the USAF need the F-35 when the F-22 has not been used in combat? Preston Timms, Student, Military technology enthusiast, wanna-be Android developer 303 votes You can't have your bombs and drop them too.  You're probably thinking, what? What's kind of an answer is that? ... Read More » How do I become a more interesting person? Manoj Memana Jayakumar, Productivity Hacker 5k votes Did you know that a trivial thing like extending a sentence can make you attractive? Let me give you an example. ... Read More » What are some of the greatest examples of presence of mind? Kapil Singh Rautela, love to be the precise one rather than being suitable,music freak, a doer,Rejuvenation admirer !! 5.3k votes Interviewer(while keeping his finger towards the table) : Underneath this bowl on the table there is piece of sweet which you have to eat without touching the bowl and u wi... Read More » What business model would you try to capitalize on if you had $25,000? Brian Roemmele, Alchemist & Metaphysician 311 votes A Worthy Business Model I was asked to answer this by Anonymous and I will assume they want a business idea to invest in. I can think of about 20 really good ideas and pe... Read More » Can you prove that [math](\tan\theta - \sin\theta) ^2 + (1 - \cos\theta) ^2 = (1 - \sec\theta) ^2[/math]? Alexander Farrugia, Mathematics PhD student (spectral graph theory) 57 votes Yes I can. [math]\tan\theta-\sin\theta \equiv \frac{\sin\theta}{\cos\theta}-\sin\theta \equiv \sin\theta(\frac{1}{\cos\theta}-1)\equiv\sin\theta(\sec\theta-1).[/math] ... Read More » How do I start a business from scratch with no money, no credit and no expert friends to help? M.W. Bloom, Founder, CEO, CRIMEWATCH Technologies 369 votes This is an interesting delima that stops countless entrepreneurs. So let me tell you how I overcame this obstacle. First, let me paint the picture. I was a new single fath... Read More » What are some growth hacks for B2B saas companies? Ashli Do, Perma-learner 341 votes Companies everywhere, particularly startups, are always experimenting with growth tactics. You can start by copying them and build your own from there. For inspiration, h... Read More » Why did Facebook rescind Aran Khanna's internship offer? Parke Muth, Founder, Parke Muth Consulting, former Associate Dean and Director of International Admission 1.6k votes The best thing I have read about this comes from Gawker: "On the afternoon of the 29th, three days after my initial posts, Facebook phoned me to inform me that it was res... Read More »