[QUOTE=Batalov;304606]Yes but think for a second about the %packet loss![/QUOTE]Clearly only suitable for short-haul simplex

[url]http://www.reddit.com/r/Physics/comments/wgqki/lets_get_this_right_the_higgs_boson_does_not_give/[/url]

Some redditer is pissed off about "Higgs gives us all mass", pointing out that 99% of the proton mass is the strong force, not the Higgs mechanism.


PS: If the quarks were massless, they'd be moving at the speed of light, so it wouldn't be possible for them to be bound in any way, right? So even though proton mass isn't directly due to the Higgs mechanism, without it there'd be no such thing?

[QUOTE=Dubslow;304633][url]http://www.reddit.com/r/Physics/comments/wgqki/lets_get_this_right_the_higgs_boson_does_not_give/[/url]

Some redditer is pissed off about "Higgs gives us all mass", pointing out that 99% of the proton mass is the strong force, not the Higgs mechanism.


PS: If the quarks were massless, they'd be moving at the speed of light, so it wouldn't be possible for them to be bound in any way, right? So even though proton mass isn't directly due to the Higgs mechanism, without it there'd be no such thing?[/QUOTE]That reddit link seem to be in agreement with this [URL="http://axelmaas.blogspot.com/2011/10/mass-from-strong-force.html"]Mass from the strong force[/URL][QUOTE]The electrons actually get their mass from the Higgs, so that is alright. But they make up less than 0.05% of the mass of the atoms. Thus, one can forget about them for this purpose. Then there are the nuclei. They are made up out of protons and neutrons. These in turn consist out of quarks. But the quarks are rather light, and make up not more than one percent of the mass of the protons and neutrons, and thus of the nuclei. So where does all the remaining mass comes from?

Well, this comes this time from the strong nuclear force, QCD[...][/QUOTE]Accepting that quarks are less than 1% of the mass of a nucleon, it is interesting to know that the lightest quark gets most of its mass from the strong force too:[QUOTE]There is another thing you may wonder about. The quarks have all very different masses due to the Higgs effect. Is the contribution due to the strong interaction also very different for the different quarks? The answer to this is actually no, the contribution from the strong force is about the same for all quarks. Thus, it makes up about 99% of the mass of the light quarks, but less than half a percent for the heaviest one. Thus, while the Higgs makes a difference between the different quark (and lepton) species, the strong force does not. Why this is the case is also yet unknown, and one of the bigger mysteries. Since the different quarks and leptons are also called different flavors of quarks and leptons, it is said that the strong force is flavor-blind, it makes no difference between different flavors. On the other hand, the Higgs makes a different between different flavors.[/QUOTE]
So, your question about massless quarks would would require hypothesizing a particle that ignored both Higgs and strong force effects. I really parrot what I read in lay material about these things. Perhaps Xilman or a couple of other illuminati might pitch in. QCD isn't going to let a quark fly off without making at least one more quark, I believe, from the forces of pulling them far apart, but the talk of fleeing hadrons and asymptomatic freedom is above my pay grade.

[QUOTE=only_human;304638]So, your question about massless quarks would would require hypothesizing a particle that ignored both Higgs and strong force effects.[/QUOTE]Like the photon and graviton perhaps?

[QUOTE=xilman;304642]Like the photon and graviton perhaps?[/QUOTE]
O, Illuminati, three quarks for Muster Mark; he was asking about if quarks were suddenly massless. Still a palpable hit and I should have been more careful. I definitely could have mentioned the photon as meeting that criterion. The graviton though, the only thing I know about it without checking is that it is supposed to be spin 2.

[url]http://www.slate.com/articles/sports/fivering_circus/2012/07/_1936_olympics_rowing_the_greatest_underdog_nazi_defeating_american_olympic_victory_you_ve_never_heard_of_.html[/url]

Here's a slightly scary one.

[url]http://www.foxnews.com/scitech/2012/07/24/is-mars-one-serious-about-suicide-mission-to-red-planet/[/url]

[QUOTE=Dubslow;306143]Here's a slightly scary one.

[url]http://www.foxnews.com/scitech/2012/07/24/is-mars-one-serious-about-suicide-mission-to-red-planet/[/url][/QUOTE]
Um, SLIGHTLY scary? You either lack imagination or are as tough as nails psychologically.

[QUOTE=jasong;306188]Um, SLIGHTLY scary? You either lack imagination or are as tough as nails psychologically.[/QUOTE]
When you read enough SF, the scary becomes less so. That's one of the many points of literature, and one of the main points of SF: extend and exercise the imagination. In retrospect, it was only a matter of time until somebody got interested enough to leave our planet before their time.


__________________________________________________________



It just occurred to me that
[url]http://www.wheresgeorge.com/[/url]
is probably something that would interest some people here. There are [URL="http://en.wikipedia.org/wiki/Currency_bill_tracking#Popular_currency_bill_tracking_websites"]international equivalents[/URL] as well.

[QUOTE=Dubslow;306200]When you read enough SF, the scary becomes less so. That's one of the many points of literature, and one of the main points of SF: extend and exercise the imagination. In retrospect, it was only a matter of time until somebody got interested enough to leave our planet before their time.
[snip]
It just occurred to me that
[url]http://www.wheresgeorge.com/[/url]
is probably something that would interest some people here. There are international equivalents as well.[/QUOTE]
You might like this then because it combines the tracking idea with books.
They use a catch and release meme. So instead of spending money, "release" a book somewhere and check it gets caught.
[url]http://www.bookcrossing.com/[/url] [QUOTE]if you love your books, let them go
- The New York Times
an unlikely global sociology experiment
- Book Magazine
a modern-day message in a bottle
- San Francisco Chronicle[/QUOTE]

[url]http://www.bbc.com/news/technology-19018930[/url]

[url]http://www.bbc.co.uk/news/magazine-19004818[/url]