It is suggested that the true ground state of the world has exactly vanishing vacuum energy and that the cosmological constant that seems to have been observed is due to our region of the universe being stuck in a false vacuum, whose energy is split from the true vacuum by non-renormalizable operators that are suppressed by powers of the Planck scale. It is shown that conventional invisible axi...

TedChing in substantive areas ofphnning has become increasingly calculative. Students have been taught to use techniques, but not to ask whether they are asking the right questions A new course whlch attempted to instead emphasize a meditatlve approach to transportation planning is described. A theme of exposing and criticizing assumptions-bubble bursting--lies at the heart of the course. Philo...

Where do stars come from? Human beings have thought about this question for thousands of years and have proposed many different explanations, but scientists have only had the technology to observe the places where stars are forming for a few decades. This is because stars form inside cold “dusty” clouds in space that are invisible to our eyes and invisible to telescopes that study visible light...

In this tutorial we provide an insight into Web Mining, i.e., discovering knowledge from the World Wide Web, especially with reference to the latest developments in Web technology. The topics covered are: the Deep Web, also known as the Hidden Web or Invisible Web; the Semantic Web including standards such as RDFS and OWL; the eXtensible Markup Language XML, a widespread communication medium fo...

The problem of radon in dwellings gained importance in 1984 after an incidence in Pennsylvania, USA; thereafter several measuring techniques have been developed and national survey programs were started throughout the world for monitoring radon levels by government authorities. The lots of work have done by researchers in this field throughout the world. Several developed countries have given g...

Invisible persons are seen in fiction stories only, but in the real world it is proved that invisibility is possible. This paper describes the creation of invisibility with the help of technologies like Optical camouflage; Image based rendering and Retroreflective projection. The object that needs to be made transparent or invisible is painted or covered with retro reflective material. Then a p...