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Here I am Introducing best resources for computer programming... We have attached links to all the resources here... We have a list of top 30 Resources for programming... Online Classes 1.  Khan Academy Their online courses offer tons of subjects (as their front page says, “You can learn anything”), including many on computer programming. A few courses are offered for younger kids, too. Topics taught: JS, HTML/CSS, SQL, much more 2.  Ruby Monk Entirely free, though you have the option to donate. Based on interactive tutorials, where you read a lesson and type in code. Lastly, “run” it. RubyMonk has one beginner course option, two intermediate, and one advanced. 3.  Code Academy CodeAcademy is where most people who are new to coding get their start. The platform revolves around interactive learning; that is, you read a little, type you code right into the browser, and see results immediately. Topics taught: HTML & CSS, JavaScript, PHP, Python, R...

Hey there this is Aman and you are on SciTech Revel. So today we will be discussing about GPUs or so-called graphics card. Let’s start with full form – GPU stands for Graphics Processing Unit. As the name suggests it is a processing unit for graphics. So, what does it processes? To view a image a monitor has to turn on and off variable arrays(pixels) at some rate which may be described as No. of times a pixel is turned on or off in a second. You may have witnessed it written on your monitor box it looks something like 60Hz or 70Hz. Here that Hertz define the no. of times a pixel is called by the processor. A picture is also defined by its resolution; that resolution suggests the grid that particular picture file uses to show you an image. Resolutions of an image are encoded into the meta data of your image file, the image viewer program extracts data from that and calculates it to use a grid of pixels available on the monitor to show that. Moving on to playing videos, whe...

What is a Tensor? Tensors, defined mathematically, are simply arrays of numbers, or functions, that transform according to certain rules under a change of coordinates. In physics, tensors characterize the properties of a physical system, as is best illustrated by giving some examples (below).  A tensor may be defined at a single point or collection of isolated points of space (or space-time), or it may be defined over a continuum of points. In the latter case, the elements of the tensor are functions of position and the tensor forms what is called a tensor field. This just means that the tensor is defined at every point within a region of space (or space-time), rather than just at a point, or collection of isolated points.  A tensor may consist of a single number, in which case it is referred to as a tensor of order zero, or simply a scalar. For reasons which will become apparent, a scalar may be thought of as an array of dimension zero (same as the order of the tensor)...

What Are Gravitons? In a contest for the least contentious statement a person can make, “What goes up must come down” is surely a strong contender. Of the four known fundamental forces—gravity, the electromagnetic force, and the strong and weak nuclear forces—we have the most intuitive understanding of gravity. From our first experiments dropping Cheerios from our high chair, we spend our lives coming to grips with the limitations that gravity imposes on us. Main Document:- In the late 1600s, Isaac Newton devised the first serious theory of gravity. He described gravity as a field that could reach out across great distances and dictate the path of massive objects like the Earth. Newton’s theory was stunningly effective, yet the nature of the gravitational field remained a mystery. In 1915, Albert Einstein’s theory of general relativity gave theorists their first look “under the hood” of gravity. What we call gravity, Einstein argued, is actually the distortion of space and tim...

Definition - What does  Kernel  mean? A kernel is the core component of an operating system. Using interprocess communication and system calls, it acts as a bridge between applications and the data processing performed at the hardware level. When an operating system is loaded into memory, the kernel loads first and remains in memory until the operating system is shut down again. The kernel is responsible for low-level tasks such as disk management, task management and memory management. Sci Tech  Revel explains  Kernel :- A computer kernel interfaces between the three major computer hardware components, providing services between the application/user interface and the CPU, memory and other hardware I/O devices. The kernel provides and manages computer resources, allowing other programs to run and use these resources. The kernel also sets up memory address space for applications, loads files with application code into memory, sets up the execution stack f...

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This illustration shows the gravitational waves thought to be produced by two orbiting white dwarf stars in a binary system called J0651, according to an August 2012 study. Credit: NASA As predicted by Albert Einstein's  theory of general relativity  in 1916, a massive object like Earth distorts space-time around it like a bowling ball dropped on a trampoline. The larger the object, the more that space-time is distorted by that object. If a marble were circling around the bowling ball on the dimpled trampoline, the marble would fall inward, toward the bowling ball, like a rock in space circling a planet. Gravitational waves are ripples in space-time that travel outward from a source. [ VIDEO: Gravitational Waves Simply Explained with a Cube and a Marble ] Scientists think that powerful gravitational waves are created when two extremely dense objects — like two neutron stars, two black holes, or a black hole and a neutron star — orbit one another in binary pair...