Roberto Abraham Scaruffi

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What are some of Facebook's best kept secrets? Alex Wu, worked at Facebook for >4 yrs. 969 votes Not sure these are "best kept" or even "secrets," but I'll give it a shot. Nobody has an office, not even Zuck. Some execs have their own assigned meeting rooms, but thei...  Read More » Can someone explain the logic behind nCr+nCr-1= n+1Cr? (I am not looking for mathematical proof) Joe Blitzstein, Professor in the Harvard Statistics D... 23 votes See the story proofs section of Stat 110 Strategic Practice 1 at Page on harvard.edu. A nice aspect of story proofs is that they not only are proofs, but also they explain ... Read More » My PI is guilty of falsifying results. Should I report it or not? Inna Vishik, postdoctoral fellow at MIT, quantum m... 33 votes Without question, report it. When research misconduct happens, other researchers will waste time and (taxpayer) money trying to reproduce or follow up on fraudulent result... Read More » What program should every programmer have in their skill set? Scott Danzig, I've been working as a professional s... 41 votes grep ... Read More » Can you complete this sentence: You know you're a parent when ____? Christopher Pow, keeping it simple since 1974 95 votes You "escape" to the bathroom. Never fails...as soon as that bathroom door closes, I'll hear: ... Read More » Are photons real? Barak Shoshany, Graduate Student at Perimeter Institu... 36 votes Photons are real in the sense that they are a crucial part of many physical theories which have been verified experimentally to very high precision. However, all physical ... Read More » Why haven't we found a better solution to replace screws? Matt Wasserman, Taking a break from Quora 170 votes What's wrong with screws? They provide excellent grip strength. They allow you to assemble a part when you only have access to one side (which you can't do with bolts unle...  Read More » How long will demand for CS graduates and computer engineering graduates be high? Clinton Staley, CS prof and software developer for 30... 93 votes This is a very thoughtful and useful question to ask right now. I've been around long enough to see three booms in demand for software developers (counting the present one... Read More » Who would win in a fight between squadrons of F-15 and MiG-29? Gabriel Chan, reading about military aviation since... 202 votes TL;DR — assuming both sides are equally experienced, trained, and equiped for air superiority missions at the time of the encounter,the F-15s have the advantage early- and... Read More » What are some mind-blowing but simple mathematical facts that seem false at the first glance? Justin Rising, PhD in statistics 36 votes For any , there's a sequence of intervals  such that and the sum of the length of these intervals is positive but less than . ... Read More »