Türkiye bugünün ilk saatlerini yaşarken, ABDde bir yıldız kaydı: Steven Jobs 5 Ekim 2011 günü uzun süredir pençeleştiği kanser hastalığına yenik düştü. Bir yıldız kaydı. Bir yıldız kaydı, çünkü IT dünyasının karanlığını bir yıldız gibi aydınlattı. Bir yıldız kaydı, çünkü animasyon dünyasında çığır açtı. Bir yıldız kaydı, çünkü……… Kurucu ortağı olduğu şirket Apple’ı ve şirketin pazarlama stratejilerini pek sevmesemde; aldığı kararlar, yaptıkları ve yapamadıklarıyla Steven Jobs her zaman benim için bir idol olmuştur ve olacaktır. Steven Jobs’un yaratıcılığı ve özgür düşünce tarzı günümüzde kullandığımız bir çok teknoloji harikası ürünün yaratılmasına, belki de IT sektörünün bu kadar hızlı bir şekilde genişlemesine ve benim mesleğimi bu kadar çok sevmeme sebep olmuştur. Steven Jobs; Büyük İskender, Napolyon Bonaparte, Tim Barners, Fatih Sultan Mehmet, Martin Luther King, Adolf Hitler, Albert Einstein, Charles Darwin, Nicolas Tesla ve Mustafa Kemal Atatürk gibi Dünyanın değişmesini sağlayan insanların yanında yerini almıştır. Daha fazla sizi sıkmadan, öncelikle mezun olunca IT sektöründe çalışmak isteyen arkadaşlar için daaha sonrasında yeni mezun olmuş mühendis arkadaşlarım için bir video paylaşmak istiyorum: Steven Jobs - Stanford Üniversitesi Mezuniyet Töreni Konuşması Son olarak, Steven Jobs’un kendine hayat prensibi olarak edindiği bir çift sözü paylaşmak istiyorum: Her gününü hayatının son günüymüş gibi yaşa. Muhakkak bir gün haklı çıkacaksın. Tags: | Categories: Mühendislik
Günlük kullandığımız bir çok sayıyı tek tek düşündüğümüzde çok farklı özlliklere sahip olduklarını görebiliriz. Bunlardan bazları: (0 - 100)   0 is the additive identity. 1 is the multiplicative identity. 2 is the only even prime. 3 is the number of spatial dimensions we live in. 4 is the smallest number of colors sufficient to color all planar maps. 5 is the number of Platonic solids. 6 is the smallest perfect number. 7 is the smallest number of sides of a regular polygon that is not constructible by straightedge and compass. 8 is the largest cube in the Fibonacci sequence. 9 is the maximum number of cubes that are needed to sum to any positive integer. 10 is the base of our number system. 11 is the largest known multiplicative persistence. 12 is the smallest abundant number. 13 is the number of Archimedian solids. 14 is the smallest number n with the property that there are no numbers relatively prime to n smaller numbers. 15 is the smallest composite number n with the property that there is only one group of order n. 16 is the only number of the form xy = yx with x and y different integers. 17 is the number of wallpaper groups. 18 is the only number (other than 0) that is twice the sum of its digits. 19 is the maximum number of 4th powers needed to sum to any number. 20 is the number of rooted trees with 6 vertices. 21 is the smallest number of distinct squares needed to tile a square. 22 is the number of partitions of 8. 23 is the smallest number of integer-sided boxes that tile a box so that no two boxes share a common length. 24 is the largest number divisible by all numbers less than its square root. 25 is the smallest square that can be written as a sum of 2 squares. 26 is the only positive number to be directly between a square and a cube. 27 is the largest number that is the sum of the digits of its cube. 28 is the 2nd perfect number. 29 is the 7th Lucas number. 30 is the largest number with the property that all smaller numbers relatively prime to it are prime. 31 is a Mersenne prime. 32 is the smallest non-trivial 5th power. 33 is the largest number that is not a sum of distinct triangular numbers. 34 is the smallest number with the property that it and its neighbors have the same number of divisors. 35 is the number of hexominoes. 36 is the smallest non-trivial number which is both square and triangular. 37 is the maximum number of 5th powers needed to sum to any number. 38 is the last Roman numeral when written lexicographically. 39 is the smallest number which has 3 different partitions into 3 parts with the same product. 40 is the only number whose letters are in alphabetical order. 41 is a value of n so that x2 + x + n takes on prime values for x = 0, 1, 2, ... n-2. 42 is the 5th Catalan number. 43 is the number of sided 7-iamonds. 44 is the number of derangements of 5 items. 45 is a Kaprekar number. 46 is the number of different arrangements (up to rotation and reflection) of 9 non-attacking queens on a 9×9 chessboard. 47 is the largest number of cubes that cannot tile a cube. 48 is the smallest number with 10 divisors. 49 is the smallest number with the property that it and its neighbors are squareful. 50 is the smallest number that can be written as the sum of of 2 squares in 2 ways. 51 is the 6th Motzkin number. 52 is the 5th Bell number. 53 is the only two digit number that is reversed in hexadecimal. 54 is the smallest number that can be written as the sum of 3 squares in 3 ways. 55 is the largest triangular number in the Fibonacci sequence. 56 is the number of reduced 5×5 Latin squares. 57 = 111 in base 7. 58 is the number of commutative semigroups of order 4. 59 is the number of stellations of an icosahedron. 60 is the smallest number divisible by 1 through 6. 61 is the 3rd secant number. 62 is the smallest number that can be written as the sum of of 3 distinct squares in 2 ways. 63 is the number of partially ordered sets of 5 elements. 64 is the smallest number with 7 divisors. 65 is the smallest number that becomes square if its reverse is either added to or subtracted from it. 66 is the number of 8-iamonds. 67 is the smallest number which is palindromic in bases 5 and 6. 68 is the 2-digit string that appears latest in the decimal expansion of π. 69 has the property that n2 and n3 together contain each digit once. 70 is the smallest weird number. 71 divides the sum of the primes less than it. 72 is the maximum number of spheres that can touch another sphere in a lattice packing in 6 dimensions. 73 is the smallest multi-digit number which is one less than twice its reverse. 74 is the number of different non-Hamiltonian polyhedra with a minimum number of vertices. 75 is the number of orderings of 4 objects with ties allowed. 76 is an automorphic number. 77 is the largest number that cannot be written as a sum of distinct numbers whose reciprocals sum to 1. 78 is the smallest number that can be written as the sum of of 4 distinct squares in 3 ways. 79 is a permutable prime. 80 is the smallest number n where n and n+1 are both products of 4 or more primes. 81 is the square of the sum of its digits. 82 is the number of 6-hexes. 83 is the number of strongly connected digraphs with 4 vertices. 84 is the largest order of a permutation of 14 elements. 85 is the largest n for which 12+22+32+ ... +n2 = 1+2+3+ ... +m has a solution. 86 = 222 in base 6. 87 is the sum of the squares of the first 4 primes. 88 is the only number known whose square has no isolated digits. 89 = 81 + 92 90 is the number of degrees in a right angle. 91 is the smallest pseudoprime in base 3. 92 is the number of different arrangements of 8 non-attacking queens on an 8×8 chessboard. 93 = 333 in base 5. 94 is a Smith number. 95 is the number of planar partitions of 10. 96 is the smallest number that can be written as the difference of 2 squares in 4 ways. 97 is the smallest number with the property that its first 3 multiples contain the digit 9. 98 is the smallest number with the property that its first 5 multiples contain the digit 9. 99 is a Kaprekar number. 100 is the smallest square which is also the sum of 4 consecutive cubes.   daha fazlası için : http://www2.stetson.edu/~efriedma/numbers.html Tags: | Categories: Mühendislik
You have no life – and you can PROVE it mathematically. You enjoy pain. You know vector calculus but you can’t remember how to do long division. You chuckle whenever anyone says “centrifugal force”. You’ve actually used every single function on your graphing calculator. It is sunny and 70 degrees outside, and you are working on a computer. You frequently whistle the theme song to “MacGyver”. You know how to integrate a chicken and can take the derivative of water. You think in “math”. You’ve calculated that the World Series actually diverges. You hesitate to look at something because you don’t want to break down its wave function. You have a pet named after a scientist. You laugh at jokes about mathematicians. The Humane society has you arrested because you actually performed the Schrodinger’s Cat experiment. You can translate English into Binary. You can’t remember what’s behind the door in the engineering building which says “Exit”. You have to bring a jacket with you, in the middle of summer, because there’s a wind-chill factor in the lab. You are completely addicted to caffeine. You avoid doing anything because you don’t want to contribute to the eventual heat-death of the universe. You consider ANY non-engineering course “easy”. When your professor asks you where your homework is, you claim to have accidentally determined its momentum so precisely, that according to Heisenberg it could be anywhere in the universe. The “fun” center of your brain has deteriorated from lack of use. You’ll assume that a “horse” is a “sphere” in order to make the math easier. The blinking 12:00 on someone’s VCR draws you in like a tractor beam to fix it. You bring a computer manual / technical journal as vacation reading. The salesperson at Circuit City can’t answer any of your questions. You can’t help eavesdropping in computer stores… and correcting the salesperson. You’re in line for the guillotine… it stops working properly… and you offer to fix it. You go on the rides at Disneyland and sit backwards to see how they do the special effects. You have any “Dilbert” comics displayed in your work area. You have a habit of destroying things in order to see how they work. You have never backed up your hard drive. You haven’t bought any new underwear or socks for yourself since you got married. You spent more on your calculator than on your wedding ring. You think that when people around you yawn, it’s because they didn’t get enough sleep. You would rather get more dots per inch than miles per gallon You’ve even calculated how much you make per second. Your favorite James Bond character is “Q,” the guy who makes the gadgets. You understood more than five of these jokes. You make a copy of this list, and post it on your door (or your home page!) Tags: | Categories: Mühendislik