Automotive Deals HPCC Amazon Fashion Learn more nav_sap_plcc_ascpsc Lori Mckenna Fire TV Stick Sun Care Handmade school supplies Shop-by-Room Amazon Cash Back Offer angrybirds angrybirds angrybirds  Amazon Echo  Echo Dot  Amazon Tap  Echo Dot  Amazon Tap  Amazon Echo Introducing new colors All-New Kindle Oasis AutoRip in CDs & Vinyl Segway miniPro
Customer Discussions > Science forum

What's the smallest unit of matter?


Sort: Oldest first | Newest first
Showing 126-127 of 127 posts in this discussion
In reply to an earlier post on Nov 15, 2012 11:34:49 AM PST
The Weasel says:
arpard fazakas says:
Quarks (up, down, strange, charm, bottom, and top) and leptons (electrons and their neutrinos, mu electrons and their neutrinos, tau electrons and their neutrinos). These are not known to have internal structure, i.e., to contain even smaller entities.
****
Who decided that charm and strange made sense as "opposite" orientations? And don't "Top" and "Bottom" seem a little too butch considering today's political climate? After all in 48 states they still can't marry.

In reply to an earlier post on Nov 15, 2012 12:21:24 PM PST
Last edited by the author on Nov 15, 2012 12:22:06 PM PST
"Strange" was coined to describe particles that decay more slowly than expected. The term was introduced in the 1950s by Gell-Mann before quarks were thought of. Subsequently it was discovered that these particles contain quarks different than the more usual up and down quarks, so they were called strange quarks. The other terms ("charm", "top", "bottom" or "beauty") are just whimsical names added on as additional quarks became necessary to explain the particle "zoo".
‹ Previous 1 2 3 4 5 6 Next ›
[Add comment]
Add your own message to the discussion
To insert a product link use the format: [[ASIN:ASIN product-title]] (What's this?)
Prompts for sign-in
 


Recent discussions in the Science forum

 

This discussion

Discussion in:  Science forum
Participants:  31
Total posts:  127
Initial post:  Feb 22, 2012
Latest post:  Nov 15, 2012

New! Receive e-mail when new posts are made.
Tracked by 2 customers

Search Customer Discussions