World Wide Web
First time I realized that world wide web found by the European at CERN, the world’s largest particle physics laboratory, was when I read “Angels and Demons”. Time ago I still thought that it was found by the American, just like most of people guessed.
Twenty years ago this month at CERN, Tim Berners-Lee handed a document to his supervisor Mike Sendall entitled “Information Management : a Proposal”. “Vague, but exciting” is how Mike described it, and he gave Tim the nod to take his proposal forward. The following year, the World Wide Web was born.
The basic idea of the “triple w” was to merge the technologies of personal computers, computer networking and hypertext into a powerful and easy to use global information system. And now, “triple w” played an important role in popularizing use of the internet, can you imagine how this life could be without internet?
Microscopic Black Holes
Talking about CERN, from the email I’ve received lately which discussed about time traveler, said that CERN had found the black hole concept in its laboratory in 2001, later this concept becomes the main idea of the invention of time machine. Because of my curiosity and lack of science information, I’ve read some articles on the internet about the creation of micro black hole but it turns my head down, hehe..
It says that micro black holes was created by the Large Hadron Collider (LHC), which can achieve an energy that no other particle accelerators have reached before, but nature routinely produces higher energies in cosmic-ray collisions. What’s difference between the micro balck hole and the nature forms black holes? The nature one happened when certain stars, much larger than our Sun, collapse on themselves at the end of their lives. They concentrate a very large amount of matter in a very small space.
Whereas, speculations about microscopic black holes at the LHC refer to particles produced in the collisions of pairs of protons, each of which has an energy comparable to that of a mosquito in flight. Astronomical black holes are much heavier than anything that could be produced at the LHC. The LHC Safety Assessment Group (LSAG) was formed to review the safety at LHC and its report has been reviewed and endorsed by CERN’s Scientific Policy Committee.
According to the well-established properties of gravity, described by Einstein’s relativity, it is impossible for microscopic black holes to be produced at the LHC. Inversely, speculative theories predict that the production of such particles can be done at the LHC but decay rapidly, even hypothetical stable black holes can be shown to be harmless by studying the consequences of their production by cosmic rays.
Can anyone guarantee that no stable black hole is created? I mean, even atomic bombs cannot utterly destroy the earth, but maybe we can consider that micro black hole could be the one thing that can in fact destroy everything. Who knows? But a lot scientist said that LHC is safe.