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IgnisDivine Says:

May 20, 2013 - Wow! Exellent video! Thanks for taking the time to explain something so interesting as this.

Christian1m1 Says:

Nov 6, 2012 - Hey, anglophone people! Fin = The End ;) Excellent video btw bro!

WaterPocket Says:

Jun 5, 2012 - ...but its still fun :-)

WaterPocket Says:

Jun 5, 2012 - Yeah learning can be fun for sure. But in order to really learn something, you will need to "to get your hands dirty" and work with the subject. Noone "learns" anything from simply watching a movie. its just a passive one-way flow of information. Learning is a lot of hard work, there is no way around it...

Andy Winfield Says:

Jun 5, 2012 - I learnt a lot from this video. why shouldn't learning by fun?

WaterPocket Says:

May 30, 2012 - its a nice little video. But I hope and pray real education never degenerates into entertainment. Students and pupils still needs to work with the stuff first hand to learn. Its essential. Going to school should not be as going to the movies. Thats not how you learn stuff. Sorry, but life is hard....

WaterPocket Says:

May 30, 2012 - Neutrinos is not mass-less particles. the are chargeless particles. So the interact via gravitation, but not via electromagnetism. But even massless AND chargeless particles can in fact interact with regular matter. Think of light/photons for example. So the reason neutrinos are interacting so weakly as they are is not because they are chargeless, as explained in this little video. Unfortunately it is much more complicated. Blame Mother Nature if you like.

t2d25 Says:

Mar 16, 2012 - Great explanation

Casey O'Hara Says:

Mar 12, 2012 - also - they do change! as they fly through space, they shift between three different "flavors" - electron neutrino, muon neutrino (what the IceCube telescope is most interest in), and tau neutrino. There are also antimatter neutrinos of each flavor, just to keep it interesting :)

Casey O'Hara Says:

Mar 12, 2012 - great question - not at all dumb! when Wolfgang Pauli first figured they must exist, he didn't think they would ever be proven. But they do have a tiny bit of mass (I don't think physicists know exactly how much yet... but more than zero!) and they can interact with other objects through what's called a "weak interaction" (which is why they rarely interact, it's weak!)

Luci57flavors Says:

Mar 12, 2012 - I know this may sound dumb but if a neutrino has no mass and can pass through everything how does it crass with the nucleus? Can the neutrino be changed and become a mass object? (anti neutrino?)

Luci57flavors Says:

Mar 12, 2012 - Yep. I agree. Good job schmasey.

Andy Winfield Says:

Feb 10, 2012 - this is how science should be taught in schools and universities. simple yet profound. well done and thank you.

Andytk33 Says:

Jan 3, 2012 - Nice work, must have been hard. But You though me something it would have taken me days to find out :) Thank You Sir

S0uRxCHAMPAGNE Says:

Dec 12, 2011 - well done, very interesting!

Sam Harms Says:

May 5, 2011 - awesome clip lad

GabrielGrewal Says:

Apr 17, 2011 - Ha! I love the "time passing" sound while the electrons orbit!

Casey O'Hara Says:

Feb 18, 2011 - I had a lot of fun making this video, and a great time during my late 2009 trip to the IceCube project at the South Pole. I realize there are a few errors in here, especially the numbers. Now that they have just finished the construction, there are actually a total of 86 strings plus IceTop cosmic ray detectors.

Casey O'Hara Says:

Feb 18, 2011 - thanks for all the kind comments!

lousy91 Says:

Feb 14, 2011 - Extremely Creative !

radiac93 Says:

Jan 16, 2011 - Good job, very clear and interesting!

Aargh28 Says:

Dec 24, 2010 - Thanks, great info, and sounds like a great project.

karkelkhan Says:

Dec 22, 2010 - Excellent video

mathththththth Says:

Dec 2, 2010 - I must precise that ice (or water) is not really the detector but is a part of it.

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