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Posts Tagged ‘saturday lecture series’

Saturday Morning Lecture: The Feudal Order

by coldwarrior ( 70 Comments › )
Filed under Academia, Open thread, saturday lecture series at January 29th, 2011 - 8:30 am

Today we continue with Prof Weber’s series “The Western Tradition”

20. The Feudal Order
Bishop, knight, and peasant exemplified some of the social divisions of the year 1000 A.D

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Follow this Link out to lecture 20. The Feudal Order

Also: This blog has many people with a very divergent set of expertise and knowledge. Therefore, I am opening this slot for guest ‘lectures’ for anyone who submits a well written, fully cited, submission on a topic that is normally not covered on the blog. The submission can be on a topic that is covered but it will have to be very in  depth and go into new detail that would greatly increase the understanding of the subject at hand. Submissions may be made to the blog’s email address with the subject line ‘Saturday Lecture Series’. I reserve the right to edit, approve, and publish at my discretion.  So, who is up for the challenge?

Saturday Lecture Series:

by coldwarrior ( 72 Comments › )
Filed under Academia, Open thread, saturday lecture series, Science, Technology at January 22nd, 2011 - 8:30 am

Good morning all, today our lecture comes to us from Huntsville, Alabama (not al-Habama). Yesterday, NASA reported that the experimental NanoSail-D has successfully deployed its sail and is underway.  “This research demonstration could lead to further advances of this alternative solar sail propulsion and the critical need for new de-orbit technologies.”

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Do check out the dashboard feature on this website:

NASA’s First Solar Sail NanoSail-D Deploys in Low-Earth Orbit

HUNTSVILLE, Ala. – Friday, Jan. 21 at 10 a.m. EST, engineers at NASA’s Marshall Space Flight Center in Huntsville, Ala., confirmed that the NanoSail-D nanosatellite deployed its 100-square-foot polymer sail in low-Earth orbit and is operating as planned. Actual deployment occurred on Jan. 20 at 10 p.m. EST and was confirmed today with beacon packets data received from NanoSail-D and additional ground-based satellite tracking assets. In addition, the NanoSail-D orbital parameter data set shows an appropriate change which is consistent with sail deployment.

“This is tremendous news and the first time NASA has deployed a solar sail in low-Earth orbit,” said Dean Alhorn, NanoSail-D principal investigator and aerospace engineer at the Marshall Center. “To get to this point is an incredible accomplishment for our small team and I can’t thank the amateur ham operator community enough for their help in tracking NanoSail-D. Their assistance was invaluable. In particular, the Marshall Amateur Radio Club was the very first to hear the radio beacon. It was exciting!”

NanoSail-D will continue to send out beacon signals until the onboard batteries are expended and can be found at 437.270 MHz. It can be tracked on the NanoSail-D dashboard at: http://nanosaild.engr.scu.edu/dashboard.htm.

It is estimated that NanoSail-D will remain in low-Earth orbit between 70 and 120 days, depending on atmospheric conditions. NanoSail-D is designed to demonstrate deployment of a compact solar sail boom technology. This research demonstration could lead to further advances of this alternative solar sail propulsion and the critical need for new de-orbit technologies. This ejection experiment also demonstrates a spacecraft’s ability, like the Fast, Affordable, Science and Technology Satellite, or FASTSAT, to eject a nano-satellite from a micro-satellite, while avoiding re-contact with the primary satellite.

“This is a significant accomplishment for both the FASTSAT and NanoSail-D projects. This accomplishment validates that we’ve met another of our primary mission objectives — successfully ejecting a nanosatellite from an orbiting microsatellite,” said Mark Boudreaux, FASTSAT project manager at the Marshall Center. “This is another significant accomplishment for our inter Agency, Industry and Governmental FASTSAT-HSV01 partnership team.”

Follow the NanoSail-D mission operation on Twitter at:

http://twitter.com/nanosaild

For additional information on the timeline of the NanoSail-D deployment visit:

http://www.nasa.gov/pdf/501204main_NSD2_timeline_sequence.pdf

To learn more about FASTSAT and the NanoSail-D missions visit:

http://www.nasa.gov/mission_pages/smallsats

Saturday Lecture Series: The Middle Ages

by coldwarrior ( 90 Comments › )
Filed under Academia, Open thread, saturday lecture series at January 15th, 2011 - 8:30 am

Today we continue with Prof Weber’s series “The Western Tradition”

19. The Middle Ages
Amid invasion and civil disorder, a military aristocracy dominated the kingdoms of Europe.

Follow this Link to the lecture.

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Also: This blog has many people with a very divergent set of expertise and knowledge. Therefore, I am opening this slot for guest ‘lectures’ for anyone who submits a well written, fully cited, submission on a topic that is normally not covered on the blog. The submission can be on a topic that is covered but it will have to be very in  depth and go into new detail that would greatly increase the understanding of the subject at hand. Submissions may be made to the blog’s email address with the subject line ‘Saturday Lecture Series’. I reserve the right to edit, approve, and publish at my discretion.  So, who is up for the challenge?

Saturday Lecture Series: Call For Papers & Charlemagne

by coldwarrior ( 75 Comments › )
Filed under Academia, Open thread, saturday lecture series at January 8th, 2011 - 8:30 am

Before we get to the Saturday Lecture, I would like to take this opportunity to announce a ‘Call For Papers’.

This blog has many people with a very divergent set of expertise and knowledge. Therefore, I am opening this slot for guest ‘lectures’ for anyone who submits a well written, fully cited, submission on a topic that is normally not covered on the blog. The submission can be on a topic that is covered but it will have to be very in  depth and go into new detail that would greatly increase the understanding of the subject at hand. Submissions may be made to the blog’s email address with the subject line ‘Saturday Lecture Series’. I reserve the right to edit, approve, and publish at my discretion.  So, who is up for the challenge?

In the mean time, let’s return to Prof Eugen Weber’s series The Western Tradition:

18. The Age of Charlemagne
Charlemagne revived hopes for a new empire in Western Europe.

Please follow this link to the lecture.

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