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The stock market works like an auction where investors who buy and sell shares of stocks. These are a small piece of ownership of a public corporation. Stock prices usually reflect investors’ opinions of what the company’s earnings will be. Traders who think the company will do well bid the price up, while those who believe it will do poorly bid the price down. Sellers try to get as much as possible for each share, hopefully making much more than what they paid for it. Buyers try to get the lowest price so that they can sell it for a profit later. How to Invest in the Stock Market Average investors can’t trade on the stock market directly. Instead, they must hire a broker-dealer to execute the trades. There’s a wide variety of choices: Fee-only financial advisers who charge an annual fee, usually 1 percent of assets. Online dealers like E-Trade, who charge a small fee per transaction.  Large banks, like Goldman Sachs or Well Fargo Advisers, provide financial planning in addition to exe

What is MRI? Magnetic Resonance Imaging (MRI) is a non-invasive imaging technology that produces three dimensional detailed anatomical images. It is often used for disease detection, diagnosis, and treatment monitoring. It is based on sophisticated technology that excites and detects the change in the direction of the rotational axis of protons found in the water that makes up living tissues. How does MRI work? MRI of a knee MRIs employ powerful magnets which produce a strong magnetic field that forces protons in the body to align with that field. When a radiofrequency current is then pulsed through the patient, the protons are stimulated, and spin out of equilibrium, straining against the pull of the magnetic field. When the radiofrequency field is turned off, the MRI sensors are able to detect the energy released as the protons realign with the magnetic field. The time it takes for the protons to realign with the magnetic field, as well as the amount of energy released, changes depen

With a myriad number of smartphones available today, it’s all a game of different designs, features, cameras, display quality, performance, battery life and numerous other things that consumers are looking for. However, what goes on beneath these mobile computing machines is equally important because if you’re knowledgeable in this aspect, then you can come close to making a purchasing decision less excruciating down the road. Looking Inside A Smartphone 1. Display Perhaps the most obvious components of a modern smartphone is its display, and while every detail you see is on the outside, it is actually an internal component of the device. Display technologies in smartphones of today come in two main types: Those based on LCDs (IPS technology and its variations) Those based on LEDs (AMOLED or Super AMOLED and its variations) LCD vs LED On an LCD-based display, there is a backlight that is shining through some polarizers, and it is shining through some filters. And by manipulating the cr

The electromagnetic (EM) spectrum encompasses all wave frequencies, including radio, visible light and X-rays. All EM waves are made up of photons that travel through space until they interact with matter; some waves are absorbed and others are reflected. Though the sciences generally classify EM waves into seven basic types, all are manifestations of the same phenomenon. Radio Waves: Instant Communication Radio waves are the lowest-frequency waves in the EM spectrum. Radio waves can be used to carry other signals to receivers that subsequently translate these signals into usable information. Many objects, both natural and man-made, emit radio waves. Anything that emits heat emits radiation across the entire spectrum, but in different amounts. Stars, planets and other cosmic bodies emit radio waves. Radio and television stations and cellphone companies all produce radio waves that carry signals to be received by the antennae in your television, radio or cell phone. Microwaves: Data and

Even if you’re familiar with Microsoft Excel, you might be surprised by the number and variety of keyboard shortcuts you can use to speed up your work and generally make things more convenient. Everyone’s needs are different, so some will be more useful to you than others. And even if you pick up a few new tricks, it’s worth it. We’ve tried to keep the list clean and simple, let’s begin… General Program Shortcuts First, let’s take a look at some general keyboard shortcuts for manipulating workbooks, getting help, and a few other interface-related actions. ·          Ctrl+N : Create a new workbook ·          Ctrl+O:  Open an existing workbook ·          Ctrl+S:  Save a workbook ·          F12:  Open the Save As dialog box ·          Ctrl+W:  Close a workbook ·          Ctrl+F4:  Close Excel ·          F4:  Repeat the last command or action. For example, if the last thing you typed in a cell is “hello,” or if you change the font color, clicking another cell and pressing F4 repeats that