Dark Matter Weight:Regular weight

Dark Matter Weight:Regular weightIs 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

Electron-antineutrino

W Boson is a heavyweight particle plush but also comes in a lightweight shipping saver version which is especially nice if you live outside the U

Not just heavy

just choose that option at checkout and it will only weigh in at 2 oz

It is part of the Quark 6-pack

CATEGORY: BOSONS

Of course you won't get the full effect of the weight variations but they will be the same in every other way

Set of 36 handmade particles includes: Mini Up Quark

CATEGORY: LEPTONS

These miniature particles are replicas of the “regular” particle plushies but are about one-third the size

Approximately 5 lb (2

2 GeV and they live for a only 0