- portal to nothing - the portal to nothing

go to the search center

find nothing in the search center
the nothing of the month
guide to nothing
add to nothing!
in the Qur'an
in international news
in Stanford Encyclopedia of Philosophy
'from none,
add none,
take one,
make none'

(Martin Creed)

go to the first page
nothing featured
   creation of anti-atoms

creation of antimatter atoms

physicists at CERN have announced that they have passed through nature's looking glass and created atoms made of antimatter, or anti-atoms, opening up the possibility of experiments in a realm once reserved for science fiction writers. such experiments, theorists say, could test some of the basic tenets of modern physics and show the way to a deeper understanding of nature.

matter and antimatter are endowed with equal and opposite characteristics such as charge and spin, so if they meet they obliterate each other, releasing a flash of energy upon contact.

scientists see the creation of antihydrogen atoms as the first step toward testing some physicists' deepest notions about nature, which hold that antimatter should look and behave identically to ordinary matter. for example, any violation of the expected symmetry between hydrogen and antihydrogen, like a slight difference in the wavelengths of the light they emit, would rock physics to its core.

by corraling clouds of antimatter particles in a cylindrical chamber laced with detectors and electric and magnetic fields, the physicists assembled antihydrogen atoms, the looking-glass equivalent of hydrogen, the most simple atom in nature. whereas hydrogen consists of a positively charged proton circled by negatively charged electrons, in antihydrogen the proton's evil twin, a positively charged antiproton, is circled by an antielectron, otherwise known as a positron. they then observed the flashes of energy when the new antihydrogen atoms annihilated themselves in collisions with ordinary matter in the walls of the chamber.

at least 50,000 antihydrogen atoms have been created since the experiment began in August, said Jeffrey Hangst, from Aarhus University in Denmark, who coordinated efforts by 39 physicists from 10 institutions in a collaboration named Athena.

in science fiction, antimatter, with its perfect convertibility to energy, is the ultimate rocket fuel, but the CERN scientists see their anti-hydrogen atoms as a ticket not across the galaxy but in effect to a different universe, in which clocks run backward, left is right, and positive is negative.

antimatter has been part of physics ever since 1927, when its existence was predicted by the British physicist Paul Dirac. the antielectron, or positron, was discovered in 1932.

according to the theory, matter can only be created in particle-antiparticle pairs. it is still a mystery, cosmologists say, why the universe seems to be overwhelmingly composed of normal matter.



| CERN: The ATHENA Experiment | ~ | CERN (Pressrelease): Thousands of cold anti-atoms produced | ~ | CERN: ATHENA Experiment Quicktime Movie [7Mb] | ~ | CERN: Antimatter | ~ | Nature: 50,000 atoms of anti-hydrogen made | ~ | Scientific American: What is antimatter? | ~ | An introduction to Particle Physics | ~ | BBC: Antimatter mystery deepens |


former featured nothings :

feature refugees are non-persons - taking photographs that could "humanise or personalise"asylum seekers has been banned by former defense minister Peter Reith's office in Australia ..." (June-02)

feature what is - and what is not? - a story about an encounter and about trying to differ between fact and non-fact ... (May-02)

feature the right not to be born - the French parliament has passed a bill that states that "nobody can claim to have been harmed simply by being born". the extraordinary bill was a response to a conviction by the French supreme court that is said to have established the right not to be born ... (April-02)

feature the 11,202,803 children - who were born out of nothing during the 31 days of Mars 2002 ... (Mars-02)

feature Nothing I Know / Something I Donít Know - by Graham Gussin ... (February-02)

feature the potent nothing of cyberspace - this virtual reality in which we now are taking part ... (January-02)

feature the active nothing of terror and response on terror; - the World Trade Center - Afghanistan and on ... (December-01)

feature Nothing at ROOSEUM, Malmö's Center for Contemporary Art, 3 November - 16 December, 2001. works by 35 artists exploring notions of invisibility, imagination and dematerialisation ... (November-01)

for every tent; the other!
- consisting of two Irish green, empty tents, one raised outside Atelier 35 in Bucharest, and one inside the gallery space ...

the hyper-metaphor; UK, raising tents
- containing, among other things, a motorway, ten tents, a text discussion and an internet diary ...


- suggestions is gratefully accepted!

foreningen av ingenting -  association of nothing
foreningen av ingenting -  association of nothing
the association of nothing

| welcome | center to nothing | nothing featured | guide to nothing  is initiated by the association of nothing, org. NO-982315999