Mar 26, 2008

What is Computer Vision Syndrome (CVS)?


“Computer Vision Syndrome” has been one of the major side effects of using computers and CVS is generally used for the vision related symptoms caused due to spending more than two hours on a computer each day. Headaches, dry or aching or tired or burning eyes, general eyestrain, focusing difficulties, double vision, blurred vision, light sensitivity, neck and shoulder pain are the well-known symptoms of CVS.

Causes

Mainly due to decreasing of the blinking rate of eye while working significant effective number of hours with computer screens leads to this phenomenon for anyone irrespective of the age. According to the Medical confirmations, the normal blinking rate in human eyes is 16-20 per minute. It has shown that the blink rate would be caused to decrease to as low as 6-8 blinks per minute for persons dealing with the computer screens regularly.

Computer monitor makes all the graphics and pictures using a large number of prime elements called “pixels”. The video display terminal (VDT) basically the monitor of the computer totally consists of those pixels and different combinations of them would draw these visible pictures on the VDT. Each pixel is brightest in the center, with the brightness decreasing toward the outer edges. This makes very much difficult to maintain the eye focus on them just because the human focusing system would not well response to those kinds of effects. This is the main reason for tiredness of the naked eye.

This leads to dry eyes and eye- tiredness as near focusing effort would strain on ciliary muscles of the eye frequently. After specific time duration, some would suffer with inability of properly focusing on near objects too which can be seen in people aged around 30-40 yrs , leading to a decrease in the accommodative focusing mechanisms of the eye.



Solutions and Suggestions

Look away from the computer screen to reduce the eye-strain hourly. One of the catch phrases is the "20-20-20 rule"……. every 20 minutes, focus the eyes on an object 20 feet (6 meters) away for 20 seconds. This basically gives a convenient distance & time-frame for a person to follow the advice from the ophthalmologist. Otherwise, the patient is advised to close his eyes (which has a similar effect) for 20 seconds, at least every half hour or even more frequently.




Glare screen filters or anti-reflective coated (AR Coated) lenses of glasses may be helpful for some to control this matter but it will not solve the computer vision problems because they only affect glare from the computer screen.




Proper lighting can reduce eyestrain and glare. Glare is created by glare on walls and other surfaces, reflections from the computer screen, bright light coming in from outside, and bright light inside. To decrease light and reflections from external light, close drapes or blinds. When using computers, lighting should be about half of that used in most offices.



Place your monitor directly in front of you, not off to one side. It should be about 20 to 26 inches away from you. Make sure your monitor is just right for you, not too high and not too low. And keep your arms in parallel to the floor when you type. Finally, maintain good posture at your desk like, keep your back straight and your shoulders back. Adjust the contrast between the background and the characters on the screen by adjusting the brightness on your computer screen.



Finally.........

This has been happening everywhere to each person to whome dealing with computers overall the world with or without the prior knowledge, hence please make sure to protect your eyes just because, your eyes is absolutely required to continue your life properly, than your computer. :)




and....... BE HEALTHFUL & ENJOY A HAPPY COMPUTING.. ....





Mar 24, 2008

"TATA-NANO " - one lakh car



TATA Motors is the largest automobile company in India who produces a revenues of more than 7 billion US $ ( in 2006-2007) and who is..
  • the leader in commercial vehicles and the second largest in passenger vehicles,
  • the world's fifth largest medium, heavy truck manufacturer and
  • the second largest heavy bus manufacturer.
Along with those achievements, TATA has been succeeded with a new invention in the car-industry with her new little boy “TATA-NANO” sometimes referred to as "one lakh car"




Technical Specification

Manufacturer : Tata Motors

nick names :The People's Car; the little bug

Production : 2008–present Assembly Singur, West Bengal

Class : City car Body style(s) 4-door kei car

Layout : RR layout

Engine : 2 cylinder, multi-point fuel injection (single) all aluminium

Transmission : 4 speed synchromesh with overdrive in 4th

Wheelbase : 2,230 mm (87.8 in)

Length : 3.10 m (122 in)

Width : 1.50 m (59.1 in)

Height : 1.60 m (63 in)

Curb weight : 580 kg (1,300 lb)-600 kg (1,300 lb)

Fuel capacity : 15 L




Fuel-efficient engine is increased by the rear-wheel drive, all-aluminum, two-cylinder, 623 cc, 33 PS, multi point fuel injection petrol engine. This is the first time that a two-cylinder gasoline engine is being used in a car with single balancer shaft and an especially dedicated electronic engine management system is being used to control the Performance.

The more comfortable passenger compartment, sheet-metal body and other features such as crumple zones, intrusion-resistant doors, seat belts, strong seats and anchorages, and the tailgate glass are making a top class safety environment inside the NANO.

In terms of overall pollutants, it has a lower pollution level than two-wheelers being manufactured in India today. The high fuel efficiency also ensures that the car has low carbon dioxide emissions




This 1 Lakh price tag is for the standard car, which does not have air conditioning. The two deluxe models will cost more.
Tata expects to sell 500,000 units of the Tata Nano, and this brand new car will go on sale in the second half of 2008.



Mar 18, 2008

The fastest growing city in the world - Dubai


  • Country : United Arab Emirates
  • Emirate : Dubai
  • Incorporated (town) : June 9, 1833
  • Incorporated (emirate) : December 2, 1971
  • Area : 3′885 km²
  • Population (2008) : 1,679,272
  • Nationality : 43.3% Indian, 15% Emirati, 13.4% Pakistani

This is "Dubai 2007"


Above is the social and environmental evolution of Dubai from 1991, due to the top level development of Building construction and the exposure to the high class newest technology. For example 15% of all building constructions during last 10 years in the world were done in Dubai. And also about 15 to 25% of the cranes of the world have been playing with 70 billion € have been currently invested in building projects there…



Tourism has been one of the major factors for this kind of rapid development on Dubai and all the facilities and other underlying services have been perfectly provided. The number of tourists was evaluated to be about 6 million in 2005 and 15 million are expected for 2010.


Incredible Technological achievements and top level construction projects, such as Skidome , Marina, The World, Burj Al Arab, Burj Dubai Tower have added a new mean to Dubai, making it the world's fastest growing city.


Mar 17, 2008

How Nuclear Bombs Work…

Nuclear bombs involve the forces, strong and weak, that hold the nucleus of an atom together, especially atoms with unstable nuclei. There are two basic ways that nuclear energy can be released from an atom:

* Nuclear fission - You can split the nucleus of an atom into two smaller fragments with a neutron. This method usually involves isotopes of uranium (uranium-235, uranium-233) or plutonium-239.
* Nuclear fusion -You can bring two smaller atoms, usually hydrogen or hydrogen isotopes (deuterium, tritium), together to form a larger one (helium or helium isotopes); this is how the sun produces energy

In either process, fission or fusion, large amounts of heat energy and radiation are given off.

To build an atomic bomb, you need:

* A source of fissionable or fusionable fuel
* A triggering device
* A way to allow the majority of fuel to fission or fuse before the explosion occurs (otherwise the bomb will fizzle out)




Atomic Structure
Before we talk about the physics of atomic bombs, it’s a good idea to go over the basic properties of atoms.

Atoms are incredibly small — the smallest is about 10-8­ cm in diameter. For an idea of how small this really is, think of a baseball. The diameter of a baseball is about 7 cm. If an atom were the size of a baseball, an actual baseball would be about 3044 miles high.

An atom is made up of three subatomic particles — protons, neutrons and electrons. The center of an atom, called the nucleus, is composed of protons and neutrons. Protons are positively charged, neutrons have no charge at all and electrons are negatively charged. The proton-to-electron ratio is always on­e to one, so the atom as a whole has a neutral charge. For example, a carbon atom has six protons and six electrons.




An atom’s properties can change considerably based on how many of each particle it has:

* The number of protons in an atom determines the type of element. Elements are classified by their atomic number, which is simply the number of protons in an atom’s nucleus. Some common elements on Earth are oxygen, carbon and hydrogen. You can see the elements on the periodic table here.­
* There are different types of atoms called isotopes. These isotopes look and act the same in nature — the only difference is the number of neutrons in the nucleus.
* You can calculate the “mass” of an atom by counting the number of protons and neutrons inside the nucleus. This number is called the ­atomic mass. Carbon has three isotopes, for example — carbon-12 (six protons + six neutrons), carbon-13 (six protons + seven neutrons) and carbon-14 (six protons + eight neutrons).




Mar 14, 2008

Art by the "murderous blocks" - Missilles

Here there are some snap shots of Missiles Firing out not to kill people but to make them amused and pleased. How nice the weapons were created only for this purpose??











Mar 11, 2008

Peugeot Moovie Concept

In the third edition of the Peugeot Design Competition, all the auto mobile designers around the world were invited to design a dream-future-Peugeot. Finally, a Portuguese designer, AndrĂ© Costa, won the competition with his project called “Moovie”, designed to function as an "agile and environmentally friendly city car".












Technical Specification

Length: 2.33 m
Width: 1.80 m
Height: 1.54 m
Estimated weight: 500 kg
LED lighting




The Moovie production process was held with the administration of the Peugeot Style Centre, according to criteria normally used for the construction of vehicles intended for a Motor Show. Three months’ work was required




This may be you in the future......


Mar 3, 2008

Blood Transfusion…

Blood

Blood acts as the transportation medium of the body letting out a systematic way for the activeness of elements, by means of deliveries and pickups. As blood circulates throughout the body, it delivers oxygen and nutrients to all the places they’re needed. Blood also collects waste products, such as carbon dioxide, and carries them to the organs responsible for making sure the wastes leave the body.

Blood is a mixture of cells and liquid and mainly consists of the following,

* Red blood cells carry oxygen to the body’s tissues and remove carbon dioxide. Red blood cells make up about 40% to 45% of a person’s blood and live for 120 days.
* White blood cells are part of the immune system, and its main defense against infection. White blood cells make up less than 1% of a person’s blood.
* Platelets are cell fragments that clot, which helps to prevent and control bleeding. They are about 5% of our blood.
* Plasma is a yellowish mixture of water, proteins, electrolytes, carbohydrates, cholesterol, hormones, and vitamins. About 55% of our blood is plasma.


Blood type and Rh

How many people have it?

O +

40 %

O -

7 %

A +

34 %

A -

6 %

B +

8 %

B -

1 %

AB +

3 %

AB -

1 %

According to a Japanese institute that does research on blood types, there are certain personality traits that seem to match up with certain blood types. How do you rate?

(1) TYPE O

You want to be a leader, and when you see something you want, you keep striving until you achieve your goal. You are a trend-setter, loyal, passionate, and self-confident. Your weaknesses include vanity and jealously and a tendency to be too competitive.

(2) TYPE A

You like harmony, peace and organization. You work well with others, and are sensitive, patient and affectionate. Among your weaknesses are stubbornness and an inability to relax.

(3) TYPE B

You’re a rugged individualist, who’s straightforward and likes to do things your own way. Creative and flexible, you adapt easily to any situation. But your insistence on being independent can sometimes go too far and become a weakness.

(4) TYPE AB

Cool and controlled, you’re generally well liked and always put people at ease. You’re a natural entertainer who’s tactful and fair. But you’re standoffish, blunt, and have difficulty making decisions.


What are the Blood Types that you can transfer in/out ?

You Can Receive

If Your Type Is

O-

O+

B-

B+

A-

A+

AB-

AB+

AB+

YES

YES

YES

YES

YES

YES

YES

YES

AB-

YES


YES


YES

YES



A+

YES

YES



YES

YES



A-

YES




YES




B+

YES

YES

YES

YES





B-

YES


YES






O+

YES

YES







O-

YES