JNTU Kakinada Postponed mid exams rescheduled???

Its known that that the 1st mid examinations of JNTU Kakinada were postponed on 18/08/2012 and 23/08/2012.

the rescheduled dates of those examinations have been released today, a circular from the respective university's site says.

According to it the scheduled exam on 18th has to be conducted on 25th and that on 23rd to 27th....

The link of circular is as follows.... Link:

JNTU Kakinada Mid Exam again postponed???

It has become usual to see a number of exam postpones this 

month. Once again comes te notice that tomorrow's scheduled 

exam has been postponed again!

There was a news about this in the official website. It read-

All Examinations of JNTU Kakinada scheduled on 23-08-2012 are postponed on Administrative grounds. The revised date of conduct of the examinations will be intimated later.

As a result the online exams will be cancelled. The theory exam 

will be decided at the respective colleges.

JNTU Kakinada Exam Postponed

All the examinations of JNTU Kakinada are postponed, as a news scroll was kept on the website of the university...

It read-

JNTUK - 

All Examinations of JNTU Kakinada scheduled on 18-08-2012 are postponed. 
The revised date of conduct of the examinations will be intimated later.

But the new date hasn't been announced yet...

With today's announcement 

two of the JNTU Kakinada's exams are postponed till now...

that on 18th and on 21st....

More updates will be posted soon....

Water Pressure: Has replaced Cutting Blades

Water has got tremendous pressure, and this phenomenon has got a wide range of applications. The pressure of water is applied in cutting, a new technology called "Water Jet Cutting". When water under high pressure is made to escape through a hole of minute diameter, it develops a force which can be used to cut even hard materials. The advantage is that water Jet cutting can replace the use of sharp blades consisting of expensive metals.

Robonaut: An alternative for Astronaut

NASA has developed a humanoid robot to help the astronauts work better and explore in space. Its called Robonaut built at NASA Johnson Space Center in Houston, Texas. Robonauts are developed to explore in the areas which are dangerous for humans to work. There are four Robonaut designs, and others currently in development. Robonaut 2 or R2 is developed for the International Space Station on space shuttle Discovery as part of the STS-133 mission.

In a single word "Robonaut is a Humanoid version of Astronaut!!! :)"

SmartDog: Dog has got Smarter

SmartDog

Smartdog is a robotic pet developed by Japanese Toy manufacturer, Bandai. It is a simple 

design that is based on iPhone for its control. It uses an iPhone as its brain and a free app of 

iPhone serves its functioning. It does the actions based on the commands you give to your iPhone, 

and based on Face time camera. Its available from Apr 24 in two color variants: Black and White 

and costs 78$. The iPhone app is released on 31 Mar and can be used without robotic dog.

"Man has been making his own replica with robots and the trend spread to the pets too!!!!"

Diamond has a Successor:Strongest material on Earth

When any one is asked "Which is the toughest material on the Earth?", The most expected answer will be diamond. Yes it is, Diamond is the hardest material known to man. Its an allotrope of Carbon. 

Diamond

The tetrahedral structure of diamond and the strong sp3 bonds the carbons make, is the reason why diamond is so strong. Since all the vacant valencies are satisfied in the atom, diamond is highly stable. Diamond is preferred because of its high thermal conductivity and toughness. It is used in blades of drilling machines, since its hardness can cut any type of materials.

But with the advancement of Science and Technology, together with the increasing costs of diamonds the search for tough materials other than diamond started. In this course, with the introduction of new materials that were developed from the chemical father of diamond: carbon, i.e., new isotopes of carbons the search took a pause. These were the materials of the thickness of 1 nm. Hence they were called Nano materials. Graphene was the new material developed that was tougher than diamond to consider.

Graphene Sheet

Graphene is an isotope of Graphite Carbon. It is a honey Comb lattice structure consisting of sheets of Carbon atoms of just one atom thick. The Carbons of Graphite are bonded in sp2 manner. It was made by rubbing the Graphite planes with adhesive tape!

In addition to these nano materials another rarely occurring natural substance has overcome the toughness of Diamond: it was expected to be 58% harder than diamond!!!

It was wurtzite boron nitride and mineral lonsdaleite. These were the two minerals which had the properties much better than diamond. Lonsdaleite, also called Hexagonal Diamond has 58% more stress withstanding quality than diamond. 

Structure of Lonsdaleite

But the thing is that these minerals are so rear that there is no sufficient amount of them, even to test them. In such a case, its obvious to think that Diamond is the only, so what sufficiently available toughest mineral on earth.