If you're out shopping for a computer, depending on your needs, you can pick a desktop PC, a notebook, a netbook, or even a tablet. Now, as if to complicate things further, you'll also find something known as a Chromebook-a lightweight, portable device that's been launched by Google and its hardware partners.

SO WHAT IS A CHROMEBOOK?

A Chromebook is like a netbook. It lacks an optical disc drive and is designed for use on the internet. In some ways, it's also like a tablet and comes with its own web store the carries over 30,000 apps. These are powered by the Chrome OS, developed by engineers at Google. 

WHAT CAN YOU DO WITH A CHROMEBOOK?

If, you spend all your time on the internet, then the Chromebook will work for you. this device relies on cloud-based services-that is, apps on the internet- for most of common computer tasks. This means you have to carry( like, to use Docs for word processing, Pixlr Editor for image editing and so on) Google drive.

When it comes to storage, the Chromebook has only 16GB, or a 32GB solid state drive(SSD), because it relies heavily on virtual storage available on Google Drive.

WHAT CAN'T YOU DO WITH IT?

You can't use apps designed for Windows or Mac OS platform. So no browser life Firefox, no VLC, no Photoshop, no Microsoft Office. Its not a right choice to go with this machine if you are a tough gamer playing demanding 3D games like Call of Duty or Grand Theft Auto.

Due to its internal storage, it can't store hundreds of videos. And, it can't play DVDs. But it can play media from a pendrive or an external mass storage. MKV, FLV, WMV files may not run. Also, support of cameras and smartphones is limted.

DOES IT REQUIRE 24x7 INTERNET CONNECTION TO WORK?

Throughout the discription you might have felt that 'No internet, No Chromebook'. But that's not the case. You can access your mailbox offline, create documents using Google  Drive.You can use offline apps, and even play some games. But without net, this device has limited utility.

BOTTOMLINE?

If you're the one concerned with Boot time then this must be your foremost preference. But to run intensive apps, games and software, pick a Windows Laptop.

Specifications

• 14'' 200 nit display with 16:9 aspect ratio
• 1.85 kg, 21 mm thin
• Up to 9.5 hours of active use1
• New Intel Processor
• 100 GB Google Drive Cloud Storage2 with 16GB Solid State Drive

Bluetooth®4.0 Compatible

• Built-in dual band Wi-Fi 802.11 a/b/g/n, 3G modem (opt)
• HP TrueVision HD Webcam
• 2x USB3.0, 1x USB2.0
• Full size HDMI Port

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Hey Guys…. This is our first post and we wanted it to be something special. So as science lovers we started off with an interesting topic of the 4^th dimension and the famous theory that deals with it the Space-Time continuum.

In 1906, soon after Albert Einstein announced his special theory of relativity, his former college teacher in mathematics, Hermann Minkowski, developed a new scheme for thinking about space and time that emphasized its geometric qualities. In his famous quotation delivered at a public lecture on relativity, he announced that,

"The views of space and time which I wish to lay before you have sprung from the soil of experimental physics, and therein lies their strength. They are radical. henceforth, space by itself, and time by itself, are doomed to fade away into mere shadows, and only a kind of union of the two will preserve an independent reality."

This new reality was that space and time, as physical constructs, have to be combined into a new mathematical/physical entity called 'space-time', because the equations of relativity show that both the space and time coordinates of any event must get mixed together by the mathematics, in order to accurately describe what we see.  Because space consists of 3 dimensions, and time is 1-dimensional, space-time must, therefore, be a 4-dimensional object. While we have the ability to control our experience of first three dimensions(height, width and length) but we do not seem to have the ability to manipulate our experience of time, eventhough physics tells us that it is merely a dimension like others. For humans, time seems to be a one-way street with a strict speed limit.

It is believed to be a 'continuum' because so far as we know, there are no missing points in space or instants in time, and both can be subdivided without any apparent limit in size or duration. So, physicists now routinely consider our world to be embedded in this 4-dimensional Space-Time continuum, and all events, places, moments in history, actions and so on are described in terms of their location in Space-Time. Space-Time does not evolve but just exists.

When we examine a particular object from the stand point of its space-time representation, every particle is located along its world-line. This world-line exists as a complete object which helps us see where a particle is located in space at a particular instant. Once you determine the complete world line of a particle from the forces acting upon it, you have 'solved' for its complete history.  You can slice it here and there to examine what the geometry of space looks like at a particular instant. This Space-Time continuum has proved to be real and a very useful concept.

 This is a series of images showing tesseract in Space-Time.

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