If Camera Lenses are Round, Why are the Pictures Rectangular?

If Camera Lenses are Round, Why are the Pictures Rectangular?

Electronics
Its a bright and sunny day, most probably you and your friends are heading out to the sea and possibly one among your friends is a photographer who goes out taking a lot of pictures of you and the nature. Suddenly out of the bloom from the crowd, comes this kid and asks them, "If the camera lenses are round, how come the pictures are rectangular?"  Now the real fun begins, none of the grown up adults know or probably few of us know about it but no one among the gang of friends knew about this, probably not even the photographer. So for all those of you I thought I will explain you about the technology behind it. Its quite obvious from the structure of a camera that the…
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The Communication @ 60 Ghz

The Communication @ 60 Ghz

Wireless
Hello my dear readers, I couldn't resist writing about this topic so this is a back to back posts and it will be a continuation of the previous posts where we saw about the 60 Ghz range, why it is important and who are the key players in this frequency band. This post introduces more about it and specifically we will see about IEEE 802.11 ad which is an amendment to the existing 802.11 standard. We will see about the how this standards new novel techniques helps in highly directional communication than the omni-directional communication that was used in the previous standards. But before getting into it, we will see about the directional communication in detail. DIRECTIONAL COMMUNICATION : We have already seen that the 60 Ghz spectrum suffers from…
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Is 60Ghz a Myth or a Reality?

Is 60Ghz a Myth or a Reality?

Wireless
Hello my dear readers and as the continuation from the previous posts which talked about the fast world of Internet, this post will focus more on the technology behind the fast wifi and what made fast wifi choose this particular frequency band. The ISM bands are the reserved portions of radio spectrum for the use of radio frequency for Industrial , scientific and medical purposes; most of the ISM bands frequencies are available worldwide and some band of frequencies are available according to regions. Many of these bands have already been used and the next frequency targeted is the 60 Ghz band. There is a huge amount of unlicensed spectrum in the 60 Ghz band. They have been used because of the availability of the unlicensed spectrum, and for the…
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Introduction to Fast World of Internet

Introduction to Fast World of Internet

Wireless
Hello again and as the continuation of my previous post, this post will talk about an interesting topic which I have chosen for talking about standards. The topic which I have chosen is based on the Ultra Fast Wifi Connectivity. This is really the W word these days, no body can live without internet or more precisely without accessing their Facebook. If the internet connection that you are getting gets super fast enabling you to do stuff at super speeds, why not read about the technology that goes into making it. But before getting into the topic we will see about the various standards that evolved before to give an overall perspective of the previous Wifi version. The primary reason for developing the wireless LAN standards is to serve the…
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Hola! Wireless Standards

Hola! Wireless Standards

Wireless
"We cannot have islands of excellence in a sea of slovenly indifference to standards.” - John W. Gardner “Without a standard there is no logical basis for making a decision or taking action.” - Joseph M. Juran “Standardization should be optimistic: There is always room for improvement and a better future.” - Shigeru Nakamura “There can be no improvements where there are no standards.” - Masaaki Imai “Standards must be observed, but they are only the starting points for further improvements.” - Shigeru Nakamura   Hello to my readers, welcome to my new series of posts related to what we call the Standards. If you are probably wondering about why I have put few quotes on top and who are these guys? Well even I dont know who these guys are,…
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Silicon Photonics – New Era of Chip Design

Silicon Photonics – New Era of Chip Design

Electronics
Ever heard about Photonics? Photonics is the process of generation, emission, transmission and various processes that deals with light. It is the next generation of chip processing that will be much efficient, low power consuming, higher bandwidth and smaller the size of components involved. Though it is still in the research level and not yet ready for a commercial process, photonics still stand for the future. Silicon Photonics is one of the fast growing research area in this topic and IBM has claimed to have advanced the technology a significant step by integrating a silicon photonic chip on the same package as a CPU. With the need for much faster computing process, silicon photonics could help us scale to exascale computing operations. Bert Offrein, manager of the Photonics group at IBM…
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India’s Daughter – BBC’s Documentary

India’s Daughter – BBC’s Documentary

Blog
Anything that happens in today's world, will be known to all because of the social media, and this was the hottest soup that was sold last week "India's Daughter" - Nirbhaya Rape Case. I was so curious to know what this documentary was all about that people talks because anything that BBC makes will have a big impact. It started with the an inspiring speech by Jyoti's father (the Victim's dad) and her tutor and mentor. The way she led his life and the struggle an average Indian family faces when they have to raise a Girl Child. It was all inspiring and motivational, how a girl does part time job, slept for just three four hours a day and still was able to complete her Medicine Course. Then the…
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CoeLux : New Way of bringing Sunlight to Home’s

CoeLux : New Way of bringing Sunlight to Home’s

Electronics
There are many researchers in the world who has tried to replicate the sun's light and eventually failed only by 400,000 miles. We are now in the era of technology and this new Italian Start up company called the CoeLux has invented a new technology by its name incorporating Nano technology and the power of conventional LED's to replicate Sunlight. CoeLux fixtures use traditional LEDs, calibrated to the same wavelengths as the sun. However, accurately recreating sunlight also requires mimicking subtle variations caused by the atmosphere, which varies in thickness and composition depending upon where you are on earth. CoeLux uses a milimeters-thick layer of plastic, peppered with nanoparticles, that does essentially the same thing in your living room. CoeLux’s inventor, Professor Paolo Di Trapani hasn’t made any disclosures about how the…
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Optical Interconnects – VCSEL’s

Optical Interconnects – VCSEL’s

Electronics
VCSELS - This is one of Surface Emitting lasers where in the light is emitted in a direction perpendicular to the active region. When we speak of optical interconnect, light source is one of the important thing to be kept in mind as they constitute the essential part in an optical Circuit. VCSEL's pronounced as (VIXEL) is one such light source which emits light vertically and because of this fact more number of lasers can be fit in single 3" Wafer. The best part about the VCSEL is that it can be tested at the wafer form itself thus eliminating the further manufacturing process if in case the design structure went wrong. The structure of a VCSEL is as follows. A pair of Bragg Mirror act as a reflectors which…
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4K Television Set/ Ultra HD Television/3d Television

4K Television Set/ Ultra HD Television/3d Television

Electronics
Its the latest among all the techie person or the electronic gadget lovers, big screen tv with a huge price tag on top of it - yeah am talking about the "New hero" in town the 4K TV's and the UHD TV's. I thought I will explain you clearly the differences and explain you what the big buzz is all about. WHAT IS 4K TV's? 4K Ultra HD TVs (also known as UHD TVs) deliver four times as much detail as 1080p Full HD — that's eight million pixels compared to two million pixels. What that means in terms of potential image clarity is more fine detail, greater texture and an almost photographic emulsion of smoothness. But this is just for starters. Prior to a roll-out of TV services, broadcasters…
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