Added: Jan 16, 2008

From: stevebd1

Duration: 10:51

Clip 4 from a 43 minute lecture, 'The Mystery of Empty Space: Higgs Bosons, Vacuum Energy and Extra Dimensions', May 2001. Full lecture- http://www.ucsd.tv/library-science.asp?detail=02&showID=5551 Blog summarizing the cosmological constant problem- http://blog.myspace.com/index.cfm?fuseaction=blog.view&friendID=120129993&blogID=333420532&Mytoken=798CBF07-AC6C-494D-BB0A560BDF54B07093375407

Channel: Tech

Tags: boson  dark  energy  field  higgs  mechanism  string  theory  vacuum 

Rating: 5.00 (12 ratings)    Views: 360    Comments: 8

OperationNautilus Says:

Jan 16, 2008 - please upload more from this lecture, it is very interesting and Mr. (/Doctor/Professor??) Giest explains it very well.

superfisto Says:

Jan 16, 2008 - Everybody is hyped on the Higgs field and the mysterious Higgs boson (at 120 times the weight of a proton!?!?!)

Arianive Says:

Jan 17, 2008 - I find this guy hard to believe.. the whole concept of all that extra matter just vanishing seems a bit odd. maybe with more experimental data the holes in the story will get filled.

chanplaypool Says:

Jan 17, 2008 - matter isn't vanishing. If it's just matter, the universe would be contracting right now (or maybe it will contracting in some future). But the universe is expanding (not at a phenomenal rate due to the vacuum energy) at a moderate rate. This moderate rate is a result of the cancellation of the vacuum field (by a negative energy field ad-hoc field), leaving a mass of about a proton per cubic foot.

chanplaypool Says:

Jan 17, 2008 - The Standard Model has been very successful at predicting everything else. It also predicted the Higgs boson. It's very tempting to look for it.

Arianive Says:

Jan 17, 2008 - Yeah I understand that part. But the whole initial explanation about tons of extra matter killed off by negative energy leaving this teeny amount we see today. That part. Sounds contrived. Maybe its just not explained well or its a condition of the math used.

hunterbender Says:

Jan 18, 2008 - if energy is not created or destroyed, than...how does that explain this vacuum energy? anyways, you are still awesome for uploading this ^^

urquiza78 Says:

Jan 25, 2008 - Negative vacuum energy. Always wondered like... Really great lecture thanks for sharing.