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On 11/4/2010 3:25 PM, Darren New wrote:
> http://www.youtube.com/watch?v=wMFPe-DwULM
>
Microsoft hosts seven Messenger Lectures of Dr. Richard Feynman on their
Project Tuva site. The lectures were filmed at Cornell University in
1964. They are well worth the six to seven hours that it takes to view
them all. You'll need Silverlight...
http://research.microsoft.com/apps/tools/tuva/
-- Kyle
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Kyle <no### [at] spam here> wrote:
> You'll need Silverlight...
How typical of Microsoft to take some scientific lectures which could
benefit our understanding of the universe... and offer them only if you
have a proprietary software of theirs.
--
- Warp
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http://www.youtube.com/watch?v=WAwDvbIfkos
Why don't trains fall off the rails?
--
Darren New, San Diego CA, USA (PST)
Serving Suggestion:
"Don't serve this any more. It's awful."
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Darren New <dne### [at] sanrrcom> wrote:
> http://www.youtube.com/watch?v=WAwDvbIfkos
> Why don't trains fall off the rails?
I certainly didn't know that, and it's once again one of those really
simple yet marvelous shows of human engineering ingenuity. Quite often
problems have the simplest solutions, but it's really difficult for
someone to come up with it, even though it sounds so simple afterwards.
--
- Warp
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Darren New <dne### [at] sanrrcom> wrote:
> http://listverse.com/2010/11/04/10-strange-things-about-the-universe/
There seems to be an error or discrepancy with the description of the
Kerr black hole in that page. The image shows the Kerr black hole having
three surfaces: The ergosphere, the outer event horizon and the inner
event horizon. The text also talks about these three.
However, if you look at the wikipedia article:
http://en.wikipedia.org/wiki/Kerr_metric#Important_surfaces
there are only two surfaces: The ergosphere and the event horizon. What
the article at listverse.com calls "outer event horizon" seems to actually
be the ergosphere, and the description seems to confirm that. It seems
that (assuming the wikipedia article is accurate) the author thought
that the ergosphere and the "outer horizon" are two different surfaces,
rather than just being two names for the same thing.
--
- Warp
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Warp wrote:
> There seems to be an error or discrepancy
I think you're right. But then, what do you expect from "top 10 lists"? :-)
--
Darren New, San Diego CA, USA (PST)
Serving Suggestion:
"Don't serve this any more. It's awful."
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