Facts about Antimatter

1. 08

   In 1995, CERN scientists created the first atoms of antimatter by combining antiprotons with positrons, producing nine antihydrogen atoms that survived for forty billionths of a second.

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2. 07

   Antimatter was theoretically predicted by physicist Paul Dirac in 1928, four years before its experimental discovery, through his relativistic quantum mechanics equations.

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3. 06

   Antiprotons trapped at CERN's Antiproton Decelerator can be stored for months inside Penning traps using combined electric and magnetic fields, allowing researchers to study antimatter properties with unprecedented precision.

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4. 05

   CPT symmetry, a fundamental physics principle, predicts that antimatter and matter have identical masses and opposite electrical charges, a prediction confirmed experimentally to within one part per billion.

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5. 04

   Antimatter particles decay almost instantaneously when created, with antiprotons surviving only milliseconds before annihilating with surrounding matter in laboratories.

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6. 03

   At CERN's Large Hadron Collider, scientists create antimatter by smashing protons together at 99.9999% the speed of light, producing antiprotons that they trap in electromagnetic fields for study.

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7. 02

   One gram of antimatter annihilating with one gram of matter releases energy equivalent to 43 kilotons of TNT, the yield of the Hiroshima bomb.

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8. 01

   The first antimatter particle, the positron, was discovered by Carl Anderson in 1932 using a cloud chamber to detect cosmic rays.

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