Pierson Barretto inspires many to support high school students in
Recife, Brazil to collect air burst impactites: Rich Murray 2011.09.24
http://rmforall.blogspot.com/2011/09/pierson-barretto-inspires-many-to.html
Pierson Barretto Cashew crater, ~ .1 km size,
impactites studied by high school
In yet more of the interesting saga of the cell phone world (handset makers
vs software providers vs carriers), Google is taking the step I presumed
they'd take earlier: acquiring a carrier. But instead they are looking at
the MVNO solution: Mobile Virtual Network Operator: http://goo.gl/6zG2u
Can someone tell me, in my doomed ignorance, how they timed that too-speedy
particle arriving at CERN? I know it's elementary for those to whom it is.
Mebbe Bruce Sherwood can give a briefing? I welcome.
Peter Lissaman, Da Vinci Ventures
Expertise is not knowing everything, but knowing
Until you get the real answer, I will offer what I thought I learned from the
expert opinion around the table yesterday.
It was done with GPS (!)
Yeah. I know. I couldn’t believe it either. I kept worrying about the
shrinking and stretching of time caused by the earth’s rotation, etc.
On 9/24/2011 12:23 PM, Nicholas Thompson wrote:
It was done with GPS (!)
PolaRx2e GPS receivers that end up providing 2.3 +/- 0.9 ns resolution
See page 9 of http://arxiv.org/pdf/1109.4897v1
FRIAM Applied Complexity Group listserv
http://arstechnica.com/science/news/2011/09/neutrino-results-depend-on-exquisite-measurements-of-time-space.ars
On 9/24/11 12:23 PM, Nicholas Thompson wrote:
Until you get the real answer, I will offer what I thought I learned
from the expert opinion around the table yesterday.
It was done
Nifty, Carl. It was gps. Blimey. N
From: friam-boun...@redfish.com [mailto:friam-boun...@redfish.com] On Behalf
Of Carl Tollander
Sent: Saturday, September 24, 2011 1:38 PM
To: friam@redfish.com
Subject: Re: [FRIAM] Ignorant, Again!
On 9/24/2011 3:02 PM, Carl Tollander wrote:
Tiny, but I get where you're going with it.
http://en.wikipedia.org/wiki/Frame_dragging
Here's the report from Gravity Probe B that observed it:
http://arxiv.org/abs/1105.3456
At 37.2 milli-arc seconds/yr, separated by 730km, it doesn't seem to be
Another comment about the speed of light in matter:
When in the steady state light is traveling through glass, the
frequency of the light in the glass (how many cycles of the sine
function occur per second) is the same as the frequency of the light
in the air. The speed with which a crest of the
Yes, but it's a tough love.
--Doug
On Sat, Sep 24, 2011 at 3:06 PM, Stephen Guerin
stephen.gue...@redfish.comwrote:
On Sat, Sep 24, 2011 at 2:47 PM, Nicholas Thompson
nickthomp...@earthlink.net wrote:
I am nervous to ask this question for fear that Peter and Doug will yell
at me again,
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