Wednesday, May 1, 2013

Rotating tower




1.- DESCRIPTION
  • The "Rotating Tower", the construction began in 2008 and it continue. The architect is David Fisher, is from Italy.


  • It´s located in Dubai and USA, but I do it of Dubai.
  • The "Rotating Tower" it´s a frame structure.

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  • The "Rotating Tower" is call the Dynamic Tower,too. Every tower is going to have 80 floors. Is the first building that every floor turn. The first and the second are going to be constructed in Dubai and the third in NY. The flats have from124m2 to 1.200m2. Every flat cost from3,6 millions to36 millions.

2.- WHAT ARE THE MAIN FUNCTIONS OR USES OF THE STRUCTURE?

  • We use the "Rotating Tower" for optein more wind power. In the Dynamic Tower there are hotel, houses and offices.


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3.- WHAT DIFFERENT PARTS ARE THERE? Elements of the structure...
  • Columns, pilars, beams, plates, shells, basements, catenaries, towers, cables, struts, tiles.

external image Dynamictower5.jpg








4.- WHAT DO YOU THINK IT IS MADE OF? 
  • Glass, Iron,Steel, Wrought, Cast, Composite materials, Stainless steel,Concrete, Reinforced concrete and Timber.


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5.- STRESSES IN THE STRUCTURE:


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6.- STABILITY, RIGIDITY AND RESISTANCE
  • This structure is made rigid by :iron
  • This structure is made stable by :their form
  • This structure is made resistant by :the concrete

7.- Picture Gallery
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Monday, April 22, 2013

lie detector

How does a lie detector work.?

ans:Lie detector is also known as polygraph,is generally used during interrogation by police.
   
     The instrument works by recording our physiological functions such as blood pressure,heartbeat,respiration and perspiration.A pnuemograph tube is fastened around the subject's chest and a blood pressure pulse cuff is strapped around the arm.Psycho-galvanic skin reflex and flow of current between different parts of the body are also measured.
    
    Sensitive electrodes are used to pick up the impulses which are recorded on a moving graph paper.The parameters are recorded when a suspect answers questions put to him  by an operator.The data is then used as a basis for deciding whether the person is lying or not.

   When a person lies,the graph deviates from the normal shape in one or more of the body functions.Such changes occur due to our emotional response to telling a lie.

While most of the questions asked are interrelated,some are included to improve the test's accuracy.The questions are usually answered in 'yes','no' mode only.

The modern polygraph was first constructed in 1921 by John A.Lagoon,a medical student at the university of California,along with a police officer.His instrument was capable of continuously recording blood pressure,pulse and respiration.As it recorded these conditions simultaneously it was called a polygraph.Though this has been in use since 1924,it has not developed into a complete fool-proof system and is yet to be accepted judicially

Wednesday, April 17, 2013

hair


WHY DON'T WE HAVE HAIR ON OUR PALMS?

In humans hair is present in the skin of nearly every part of the body excepting the palms of hands, the soles of the feet, the flexor surface of the digits. The structural components of the skin alone decide the generation of the appendages of the skin. Structurally the skin has two layers: the Epidermis and Dermis. Among these two layers, the epidermis has a high capacity for regeneration after damage. It continually replaces the outer dead cells and also generated the appendages of the skin, like hairs, nails, sweat and sebaceous glands.

In the two parts of the hair, namely the root and shaft, the root is the structure which emerges first during development and is called the hair follicle. It is set in between the epidermis and the superficial part of the dermis. Each hair follicle commences on the surface of the skin with a funnel shaped opening. From this opening the follicle passes inwards in an oblique or curved direction.

As the deep end of each hair follicle there is a small conical vascular eminence called papilla, which is continuous with the dermal layer of the skin. The capillaries of the papilla provide nutrients to the hair.

When any one of the layers of epidermis and dermis gets abnormal development it affects the formation of the hair follicle and also becomes an unfit layer to support the hair.

For example, in the skin of palm and soles the stratum cornium of the keratinization zone of epidermis and reticular layer of dermis are comparatively thicker than in the skin of other parts of our body.

Such a thick keratinization zone will not allow the formation of hair follicles and the thick dermis is not the ideal structure to support the germinal matrix of the hair follicles. That is why hairs do not grow on our palm of the hands and the soles of the feet.

Monday, April 15, 2013

Author

This is My First Blog...............please correct my mistakes if they are wrong......and  please give the suggestions for the improvement of this blog......................Suggestions can be send to my email id adi.adi1000@gmail.com...............This is a humble request for the page viewers and followers of this blog...

Butter--Butter Milk

 Does buttermilk contain butter?

ans: May be strange but it is a fact butter milk doesn't contain any butter.....

Rain

Why is there a peculiar smell after a shower(Rain)?

ans: The Peculiar smell immediately after a shower is due to certain volatile chemical compounds released by a group of soil-inhabiting bacteria called streptomycetes.
        
     Streptomycetes,grouped as actinomycetes,are abundant in dry warm soil,a million of them can be detected in a gram of the soil.They release compounds such as geosmin and 2methyl isoborneol when wetted by rain water after a long dry spell.That is why we get the musty odour only after the first rain of the rainy season.The smell can be felt in newly ploughed lands also...

Saturday, April 13, 2013

Depth Of Oceans

How is Depth Of Oceans measured?

ans: Ultrasonic sounds are used to measure the depth of oceans and the principle behind is known as sound navigation and ranging sensor.


     These waves are sent from a transmitter from the surface of the sea,from a ship.The sound waves are reflected  by the sea bottom are sensed by a  receiver system and recorded.With the known value of the velocity of speed in water and time taken by the sound to travel from the surface to the bottom and back,the depth is measured