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Answer for the clue "Great 25, one joining 10 27 21? ", 10 letters:
antiproton
Alternative clues for the word antiproton
Word definitions for antiproton in dictionaries
The Collaborative International Dictionary
Word definitions in The Collaborative International Dictionary
antipartticle \an`ti*part"ti*cle\ ([a^]n`t[i^]*[aum]r"t[i^]*k'l), n. (Physics) A fundamental particle which has the same mass as one of the common fundamental particles, but which has an opposite charge, and for which certain other of the properties ...
WordNet
Word definitions in WordNet
n. an unstable negatively charged proton; the antiparticle of a proton
Wikipedia
Word definitions in Wikipedia
The antiproton , , (pronounced p-bar ) is the antiparticle of the proton . Antiprotons are stable, but they are typically short-lived since any collision with a proton will cause both particles to be annihilated in a burst of energy. The existence of the ...
Wiktionary
Word definitions in Wiktionary
n. (context physics English) The antiparticle of the proton, having a negative electric charge.
Usage examples of antiproton.
Once that state has been achieved, they are collided with heavy nuclei, resulting in a spray of elementary particles that includes antiprotons, antielectrons, and antineutrons.
And when a proton annihilates an antiproton, it produces a pi-zero meson one-third of the time, and a charged pion, a muon, and a neutrino two-thirds of the time, after which the pions and neutrons promptly break down to electrons and positrons, photons and neutrinos.
In properly tuned drives, however, the antiprotons should have been completely consumed, so that their radiation pressure could add to the thrust.
In addition to the usual system of Diracs for the production of the force field, the Cyclops was equipped with an antimatter projectile cannon, which enabled it to shoot off antiprotons simultaneously in any and all directions.
The gas of antiprotons roared without noise around the stump of his wrist.
Grant, he spared a half second to look at the section of inner bulkhead that had been sluiced away by the antiproton beam.
If we go ahead with an antiproton massacre, not one can possibly live through such a hell, if any of them are still alive.
But CERN has now broken ground on its new Antiproton Decelerator-an advanced antimatter production facility that promises to create antimatter in much larger quantities.
Even a millionth of an ampere blast should be avoided, if it was an antiproton current.
He could try other more energetic transmissions, bursts of positrons, muons, gamma rays, or antiprotons that might attract attention to the Bridgehead.
We have evidence from cosmic rays that the same is true for all the matter in our galaxy: there are no antiprotons or antineutrons apart from a small number that are produced as particle/ antiparticle pairs in high-energy collisions.
The antiprotons can be captured, slowed down, and stored in magnetic storage rings.
One by-product of the big particle accelerators at Fermilab in Illinois, at IHEP in Novosibirsk in the Soviet Union, and at CERN in Switzerland, is a supply of antiprotons and positrons.
Antiprotons and water were squirted into a plenum chamber at a three-to-one mix ratio.