The in/visible
Edited by Clare Birchall
Invisible Web
Dirk Lewandowski & Philipp Mayr
'Exploring the Academic Invisible Web'
Jayant Madhavan, Loredana Afanasiev, Lyublena Antova & Alon Halevy
‘Harnessing the Deep Web: Present and Future’
Makeuseof
The Invisible Web refers to the part of the WWW that’s not indexed by the search engines. Most of us think that that search powerhouses like Google and Bing are like the Great Oracle”¦they see everything. Unfortunately, they can’t because they aren’t divine at all; they are just web spiders who index pages by following one hyperlink after the other.
But there are some places where a spider cannot enter. Take library databases which need a password for access. Or even pages that belong to private networks of organizations. Dynamically generated web pages in response to a query are often left un-indexed by search engine spiders.
Search engine technology has progressed by leaps and bounds. Today, we have real time search and the capability to index Flash based and PDF content. Even then, there remain large swathes of the web which a general search engine cannot penetrate. The term, Deep Net, Deep Web or Invisible Web lingers on.
To get a more precise idea of the nature of this “˜Dark Continent’ involving the invisible and web search engines, read what Wikipedia has to say about the Deep Web. The figures are attention grabbers ““ the size of the open web is 167 terabytes. The Invisible Web is estimated at 91,000 terabytes. Check this out – the Library of Congress, in 1997, was figured to have close to 3,000 terabytes!
How do we get to this mother load of information?
That’s what this post is all about. Let’s get to know a few resources which will be our deep diving vessel for the Invisible Web. Some of these are invisible web search engines with specifically indexed information.
'10 Search Engines to Explore the Deep Web'
Black Holes
Ted Jacobson and Thomas P. Sotiriou
‘Might Black Holes Reveal their Inner Secrets?’
Alberto Sesana, Jonathan Gair, Emanuele Berti, Marta Volonteri
‘Reconstructing the Massive Black Hole Cosmic History through Gravitational Waves’
J.Hillis Miller
Boustrophedonic Reading: Black Holes
Invisibility Cloak
Xianzhong Chen, Yu Luo, Jingjing Zhang, Kyle Jiang, John B. Pendry and Shuang Zhang
‘Macroscopic Invisibility Cloaking of Visible Light’
Yangbo Xie, Huanyang Chen, Yadong Xu, Lin Zhu, Hongru Ma, and Jian‐Wen Dong
‘An invisibility Cloak Using Silver Nanowires’
Huanyang Chen and Che Ting Chan, Shiyang Liu and Zhifang Lin
‘A Simple Route to a Tunable Electromagnetic Gateway’
Jason Valentine, Jensen Li, Thomas Zentgraf, Guy Bartal and Xiang Zhang
'An Optical Cloak Made of Dielectrics'
Shuang Zhang, Dentcho A. Genov, Cheng Sun, Xiang Zhang
Dark Matter
Vincenzo Vitale, Aldo Morselli
H. L. Helfer
‘On the Interpretation of the Local Dark Matter’
M. Rondcadelli
Cosmos Video News Release
Stealth
F.P. Neele, M. Wilson, & K. Youern
David Hambling
Gene Poteat
'Stealth, Countermeasures and ELINT 1960-1975'
Trevor Paglen
Youtube
'YF-22 and YF-23 - Stealth Technology'
Seeing and Unseeing
Holly C. Miller, Rebecca Rayburn-Reeves, and Thomas R. Zentall
'What Do Dogs know about Hidden Objects?'
Gary Lupyan & Michael J. Spivey
‘Making the Invisible Visible: Verbal but Not Visual Cues Enhance Visual Detection’
Michael Wolf
Geraint Rees
Microscopic
Willard Wigan
Z. Wang, W. Guo, L. Li, B.S. Luk'yanchuk, A. Khan, Z. Liu, Z. Chen, M. Hong
'Optical Virtual Imaging at 50 nm Lateral Resolution with a White Light Nanoscope'