Admission to DNB Post Diploma Courses through DNB PD CET 2013

The National Board of Examinations (NBE) has invited applications for aspiring students who want to join various post diploma courses in modern medicine. The Diplomate National Board Post Diploma Centralized Entrance Test (DNB PD CET) exam will be conducted in late August.

AICTE to conduct First CMAT 2014-15 in September 2013

The All India Council for Technical Education (AICTE) will be conducting the first Common Management Admission Test (CMAT) from 26 to 30 September, 2013 for admission to management programmes for the 2014 to 2015 academic session.

Space Station Illuminates Dusty Plasmas for a Wide Range of Research

One of the most frequently-used physics laboratories on the International Space Station recently completed its final set of experiments. The Plasma Kristall Experiment (PK-3 Plus) lab, a Russian-German cooperation in operation since January 2006, has provided new insight into an unusual type of matter called plasma crystals. Though the experiment runs came to a close on June 14, the research continues to open an exciting world of potential technological spin-offs in medicine, agriculture and general science.

(Side view of a plasma crystal in the laboratory. Dust particles are suspended in an argon plasma above a high-frequency electrode (bottom). The horizontal field of view is 2 cm. (Credit: Max Planck Institute for Extraterrestrial Physics))

The unique environment of microgravity allows physicists to study how these crystals form inside dusty plasmas--a type of matter with unique properties found everywhere--in ways not possible on Earth.

Imaging Electron Pairing in a Simple Magnetic Superconductor

In the search for understanding how some magnetic materials can be transformed to carry electric current with no energy loss, scientists at the U.S. Department of Energy's Brookhaven National Laboratory, Cornell University, and collaborators have made an important advance: Using an experimental technique they developed to measure the energy required for electrons to pair up and how that energy varies with direction,

Old Opportunity Mars rover makes rock discovery

Nasa's ageing Opportunity rover on Mars has just made what may be one of its most significant discoveries to date.

The nine-year-old robot has identified rock laden with what scientists believe to be clay minerals.

Their presence is an indication that the rock, dubbed Esperance, has been altered at some point in the past through prolonged contact with water.

Newton's first law

Newton's first law of motion is often stated as

An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

Forces

Forces

One of the basic features in physics is the occurrence of forces that keep matter together. There are for example, the forces that keep the cells together to build up the human body, and there is the gravitational force that keeps us on the ground and the moon in orbit around the earth. We can ourselves exert forces when we push something and, by engineering, get some of the energy content in oil to 

Relativity: The Special and General Theory by Albert Einstein

A. EINSTEIN
Part I
The Special Theory of Relativity
Physical Meaning of Geometrical
Propositions
In your schooldays most of you who read this book made acquaintance with the noble
building of Euclid's geometry, and you remember — perhaps with more respect than love
— the magnificent structure, on the lofty staircase of which you were chased about for
uncounted hours by conscientious teachers. By reason of our past experience, you would
certainly regard everyone with disdain who should pronounce even the most out-of-the-way
proposition of this science to be untrue. But perhaps this feeling of proud certainty would