What is the smallest possible thing in the universe?

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Offline Emc2

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Offline waytogo

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Re: What is the smallest possible thing in the universe?
« Reply #1 on: 22/09/2012 23:10:45 »
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Offline neilep

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Re: What is the smallest possible thing in the universe?
« Reply #2 on: 23/09/2012 06:00:25 »
Interesting article....


http://www.bbc.co.uk/news/science-environment-19434856


RELATED TO THE ABOVE:

BBC's Horizon here in the UK did produce a fascinating programme...here's a link to it's page..not too sure iof it available to non UKers !...but it has some nice clips http://www.bbc.co.uk/programmes/b01mmrc0
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Offline CliffordK

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Re: What is the smallest possible thing in the universe?
« Reply #3 on: 23/09/2012 11:49:55 »
Looking at the fundamental particles.

They are all pretty damn small.  The photon is near the bottom of the list, listed as having a "Mass" of <110−18 eV/c2

The Gluon is listed with a "Mass" of < 0.0002 eV/c2  (of course, it is defining a range, and not an exact value).

The Electron Nutrino is listed as the mass simply being "Small but non-zero".

So, do we know the photon is the smallest particle discovered so far?