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Contains a Graviton
For Feynman fridge magnets
Mini Z Boson
Booklet: 4” square (10 cm)
For ages 5 and up as it contains glued-on/small parts
Antineutron everyday matter Contains a GravitonThe ANTINEUTRON is the antiparticle of the Neutron. Also part of the Antiparticle 14 pack. Approximately 5 oz (142 gm); 3. 5 inches (12 cm) across. For ages 5 and up as it contains glued on small parts. CATEGORY: ANTIPARTICLES > ANTI NUCLEONS
US$ 12.69
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