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Old 09-08-2011, 07:51 PM   #281
mash20
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I'm 90% sure this is the project Mashalah20 has been working on
CRESST team finds new 'evidence' of dark matter
http://www.physorg.com/news/2011-09-...ence-dark.html
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Originally Posted by DylloS View Post
that would be awesome. That dude seems to know what he's doing.
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That's because he's almost done with his PhD in astrophysics
I'm actually part of the XENON dark matter experiment (which is in the same lab as CRESST), I've passed by their experiment a million times on the way to ours lol. So, my thoughts on the matter....they have some expected backgrounds which are very large (~40 events or something), much higher than the expected backgrounds from XENON or CDMS (the other big dark matter experiments) which are ~2 events. They have some excess of events that can be attributed to dark matter interactions at either of 2 mass and cross section areas. If you look at the paper cited in the article, it's Fig. 13. The main region they claim has been excluded by XENON and CDMS, basically our results say they're wrong.

The other region is kind of consistent with claims of dark matter detection from CoGeNT and DAMA (two other dark matter experiments that say they saw something). To me, that's the really interesting part. I'm still very skeptical of their results, but more experiments are needed to probe these low mass regions. Another big issue is that the LHC has basically said that dark matter shouldn't exist with masses below ~200 GeV, well above the claims of CRESST, CoGeNT, and DAMA....

(Also, I just got my PhD on Tuesday )
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Old 09-09-2011, 10:23 AM   #282
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Originally Posted by mashalah20 View Post
I'm actually part of the XENON dark matter experiment (which is in the same lab as CRESST), I've passed by their experiment a million times on the way to ours lol. So, my thoughts on the matter....they have some expected backgrounds which are very large (~40 events or something), much higher than the expected backgrounds from XENON or CDMS (the other big dark matter experiments) which are ~2 events. They have some excess of events that can be attributed to dark matter interactions at either of 2 mass and cross section areas. If you look at the paper cited in the article, it's Fig. 13. The main region they claim has been excluded by XENON and CDMS, basically our results say they're wrong.

The other region is kind of consistent with claims of dark matter detection from CoGeNT and DAMA (two other dark matter experiments that say they saw something). To me, that's the really interesting part. I'm still very skeptical of their results, but more experiments are needed to probe these low mass regions. Another big issue is that the LHC has basically said that dark matter shouldn't exist with masses below ~200 GeV, well above the claims of CRESST, CoGeNT, and DAMA....
I can't wait to be able to fully understand what you/the paper are saying. And just FYI, you're living my dream right now: Living in a foreign country and getting paid to conduct research, pretty much my plan once I get back to school.

Quote:
(Also, I just got my PhD on Tuesday )
Congrats man. I can't imagine how good that must feel. Post-doc program in the future?


I have no idea what satellite this is or why they're so close, but this picture is awesome
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Old 09-12-2011, 02:07 PM   #283
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I came across this last night and listened to a few of their podcasts. I figure anyone following this thread would be interested
http://www.radiolab.org/series/podcasts/
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Old 09-12-2011, 02:14 PM   #284
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pffftt....everyone knows astrology is all BS...I never believed in all that "whats your sign" business anyways...
of course astrology is bs. It's astronomy we're talking about around here.

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Originally Posted by mashalah20 View Post
I'm actually part of the XENON dark matter experiment (which is in the same lab as CRESST), I've passed by their experiment a million times on the way to ours lol. So, my thoughts on the matter....they have some expected backgrounds which are very large (~40 events or something), much higher than the expected backgrounds from XENON or CDMS (the other big dark matter experiments) which are ~2 events. They have some excess of events that can be attributed to dark matter interactions at either of 2 mass and cross section areas. If you look at the paper cited in the article, it's Fig. 13. The main region they claim has been excluded by XENON and CDMS, basically our results say they're wrong.

The other region is kind of consistent with claims of dark matter detection from CoGeNT and DAMA (two other dark matter experiments that say they saw something). To me, that's the really interesting part. I'm still very skeptical of their results, but more experiments are needed to probe these low mass regions. Another big issue is that the LHC has basically said that dark matter shouldn't exist with masses below ~200 GeV, well above the claims of CRESST, CoGeNT, and DAMA....

(Also, I just got my PhD on Tuesday )

congrats man.
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Old 09-12-2011, 02:21 PM   #285
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of course astrology is bs. It's astronomy we're talking about around here.
------sarcasm--------





-----solly's head------
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Old 09-12-2011, 02:26 PM   #286
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------sarcasm--------





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+1
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Old 09-12-2011, 02:27 PM   #287
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I was talking with a guy about my interest in implementing a fly by light control system that would be immune to EMF, well he told me about an up and coming company he was looking to invest in, it's very cool stuff.

http://lasermotive.com/

My motto recently has been why use electrons when you've got photons?
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Old 09-12-2011, 02:29 PM   #288
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I can't wait to be able to fully understand what you/the paper are saying. And just FYI, you're living my dream right now: Living in a foreign country and getting paid to conduct research, pretty much my plan once I get back to school.

Congrats man. I can't imagine how good that must feel. Post-doc program in the future?
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congrats man.
Thanks guys! I actually haven't been back to Italy in about a year and a half, but I might end up back there again sometime this coming year. I'm doing a Postdoc right now with the same group (at UCLA) but we'll see where I end up afterwards.
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Old 09-12-2011, 02:29 PM   #289
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I was talking with a guy about my interest in implementing a fly by light control system that would be immune to EMF, well he told me about an up and coming company he was looking to invest in, it's very cool stuff.

http://lasermotive.com/

My motto recently has been why use electrons when you've got photons?
Correct me if I'm wrong, but wouldn't you always need a line of sight in order to flight by light? EM waves dont necessarily need that.

edit: After watching their video, I see they beam power over a laser; I thought you were talking about controlling (sending info) via a laser. I had read about these guys awhile back when they were working on the NASA prize, very cool stuff.
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Old 09-12-2011, 02:43 PM   #290
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------sarcasm--------





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+1
hahhaa I was like omggg what is this guy talking about lol
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Old 09-12-2011, 03:06 PM   #291
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Well fvck me. I've been toying with this idea for a year or so now. I first started thinking about it when I read about the tests proving that an electron can exist in multiple places at once and the fact that no electron is unique; turns out I wasn't the first.
http://en.wikipedia.org/wiki/One-electron_universe
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Old 09-12-2011, 03:13 PM   #292
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Correct me if I'm wrong, but wouldn't you always need a line of sight in order to flight by light? EM waves dont necessarily need that.

edit: After watching their video, I see they beam power over a laser; I thought you were talking about controlling (sending info) via a laser. I had read about these guys awhile back when they were working on the NASA prize, very cool stuff.
Well the wireless stuff is cool, but what I was hinting at was using this sort of tech with fiber optics as a carrier within the craft. It would be completely emf resistant, rather than fly or drive by wire, why not do it by light? That was my initial plan and then to only have electric wiring to act as a current carrier, but if you also used lasers for energy transmission it mitigates the need for that current wire.
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Old 09-13-2011, 04:30 PM   #293
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Old 09-13-2011, 04:48 PM   #294
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Have you ever seen the movie Moon?
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Old 09-13-2011, 05:41 PM   #295
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Have you ever seen the movie Moon?
i thought that movie was awesome
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Old 09-13-2011, 05:50 PM   #296
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That comic reminded me of the premise
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Old 09-13-2011, 06:46 PM   #297
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Scott i didn't see that photo of the satellite until now, holy snap that's an awesome photo/angle. that hardly even looks like it's in orbit. I could only imagine the velocity necessary to maintain an orbit at that altitude.
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Old 09-13-2011, 06:54 PM   #298
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Well fvck me. I've been toying with this idea for a year or so now. I first started thinking about it when I read about the tests proving that an electron can exist in multiple places at once and the fact that no electron is unique; turns out I wasn't the first.
http://en.wikipedia.org/wiki/One-electron_universe
That sounds like time travel....

Anyhow, I love the world we live in .

Everything changes so much now, nothing remains constant.
As opposed to 1500 years ago when nothing significant was learned for another 1k years.
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Old 09-13-2011, 06:57 PM   #299
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I'm actually part of the XENON dark matter experiment (which is in the same lab as CRESST),
(Also, I just got my PhD on Tuesday )
congrats !

What was your thesis ?

BTW, considering that this is the field you are in...what do you know about HARRP ? Or is that not a very big deal ...
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Old 09-13-2011, 07:13 PM   #300
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HAARP ≠ high energy astrophysics
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