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Ships within 48 hours · Estimated delivery Aug 16 - Aug 21
Booklet: 4” square (10 cm)
believed by physicists to reveal how all matter in the universe gets its mass
TAU is also part of the Lepton 6-pack
The W Boson is double-sided (it's both W- and W+)
Approximately 5 oz (142 gm)
Dark Matter proton Booklet: 4” square (10 cm)Is DARK MATTER the key to understanding what the universe is really made of and if it will expand forever, remain static, or eventually contract? Or is it just a piece of black Swiss cheese? Dark Matter is also part of the Theoreticals 3 Pack and Darkness & Light 2 Pack. No two are exactly the same. This is the heaviest particle in the Zoo. Dark Matter is a heavyweight particle plush but also comes in a lightweight shipping saver version which is
US$ 2872.50
US$ 54.99
