abhishek parikshya's..
Friday, February 19, 2010

The Sukhoi-mki30

Posted by abhishek parikshya

The Sukhoi Su-30 MKI[3]  (NATO reporting name: Flanker-H) is a  variant   of the    Sukhoi Su-30 jointly developed by Russia's Sukhoi Corporation and India's Hindustan Aeronautics Limited (HAL) for the Indian Air Force (IAF). It is an air superiority fighter which can also act as a multirole, strike fighter jet.
                              

General characteristics
    * Crew: 2
    * Length: 21.935 m (72.97 ft)
    * Wingspan: 14.7 m (48.2 ft)
    * Height: 6.36 m (20.85 ft)
    * Wing area: 62.0 m² (667 ft²)
    * Empty weight: 18,400 kg [4] (40,565 lb)
    * Loaded weight: 24,900 kg (54,895 lb)
    * Max takeoff weight: 38,800 kg (85,600 lb)
    * Powerplant: 2× LyulkaAL-31FP turbofans with thrust vectoring,131 kN (27,557 lbf) each
Performance
    * Maximum speed: Mach 2.34 (2490 km/h) at 11,000 m (36,000 ft)
    * Range: 5,000 km (2,700 nmi) at altitude; (1,270 km, 690 nmi near ground level)
    * Endurance: 4.5 hrs (upto 10 hrs with in-flight refueling)
    * Service ceiling: 17,300 m (56,800 ft)
    * Rate of climb: >300 m/s (70,000 ft/min)
    * Wing loading: 401 kg/m² (98 lb/ft²)
    * Thrust/weight: 1.07 at loaded weight & 1.15 with 50% fuel

Wednesday, February 17, 2010

Burj Khalifa-The tallest

Posted by abhishek parikshya

Burj Khalifa (Arabic: برج خليفة‎ "Khalifa Tower"), formerly known as Burj Dubai prior to its inauguration, is a skyscraper in Dubai, UAE, and the Tallest man made structure ever built, at 828 m (2,717 ft).Construction began on 21 September 2004, with the exterior of the structure completed on 1 October 2009.

World Records

At over 800 metres (2625 feet) and more than 160 stories, Burj Khalifa holds the following records:
•  Tallest building in the world
•  Tallest free-standing structure in the world
•  Highest number of stories in the world
•  Highest occupied floor in the world
•  Highest outdoor observation deck in the world
•  Elevator with the longest travel distance in the world
•  Tallest service elevator in the world

Thursday, February 11, 2010

Optical illusions

Posted by abhishek parikshya



1. Blivet
It appears to have three cylindrical prongs at one end which then mysteriously transform into two rectangular prongs at the other end.

2.Café Wall Illusion
The café wall illusion is an optical illusion, first described by Doctor Richard Gregory. He observed this curious effect in the tiles of the wall of a café at the bottom of St Michael’s Hill, Bristol. This optical illusion makes the parallel straight horizontal lines appear to be bent. To construct the illusion, alternating light and dark “bricks” are laid in staggered rows. It is essential for the illusion that each “brick” is surrounded by a layer of “mortar” (the grey in the image). This should ideally be of a color in between the dark and light color of the “bricks”.


3.Fraser Spiral Illusion
 The illusion is also known as the false spiral, or by its original name, the twisted cord illusion. The overlapping black arc segments appear to form a spiral; however, the arcs are a series of concentric circles.
  4.Hermann Grid Illusion
The Hermann grid illusion is an optical illusion reported by Ludimar Hermann in 1870 while, incidentally, reading John Tyndall’s Sound. The illusion is characterised by “ghostlike” grey blobs perceived at the intersections of a white (or light-colored) grid on a black background. The grey blobs disappear when looking directly at an intersection.
 5.Impossible Cube Illusion
The impossible cube or irrational cube is an impossible object that draws upon the ambiguity present in a Necker cube illustration. An impossible cube is usually rendered as a Necker cube in which the edges are apparently solid beams. This apparent solidity gives the impossible cube greater visual ambiguity than the Necker cube, which is less likely to be perceived as an impossible object. The illusion plays on the human eye’s interpretation of two-dimensional pictures as three-dimensional objects.

Tuesday, February 09, 2010

Petronas towers

Posted by abhishek parikshya

Here are some interesting facts about the Petronas Towers:
-combined the towers have 1,000,000m2 of floor space;
- at the 41
st and 42nd level a skybridge connects the two towers 170m/558f above the ground.

- the towers have 32.000 windows.
- the building costs were US $ 1,2 billion.

- the whole complex was built on a former horse-racing track.
- the towers' complex includes an art gallery, an 840-seat concert hall, and an underground parking lot;
- the main occupant of the buildings is Petronas, the national oil-company;
- though completed in 1998, the buildings were officially opened on August 28th, 1999;

Tuesday, February 09, 2010

My talisman

Posted by abhishek parikshya

If you think your salary is low, how about her?
If you think you don't have many friends...
If you think you suffer in life, do you suffer as much as he does?
If you complain about your transport system, how about them?
Enjoy life how it is and as it comes
Things are worse for others and is a lot better for us
There are many things in your life that will catch your eye
but only a few will catch your heart....pursue those...










Are u still complaining???