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These are the most recent diaries filed under this tag:
2.1 Narrative In this, the second of four aerospace-based S.T.E.M. projects, students will calculate the payload capacity of the R.E.L. Skylon spaceplane. Students will use the launch site latitude ...
by STEM For the Classroom
Comment Count 5 comments on Sun Dec 07, 2014 at 06:50 AM PST with 5 Recommends
Not limited... The questions below are not, actually, limited just to those called out in the title. Anyone with input may respond - ideally, input relevant to the questions and possible answers, ...
by GreyHawk
Comment Count 12 comments on Wed Sep 03, 2014 at 10:27 AM PDT with 1 Recommend
This mesmerizing animation shows the libration and phases of the Moon at hourly intervals during 2013. Turn up the volume. Click play and watch for a while. The moon has some very intriguing motions ...
by jim in IA
Comment Count 30 comments on Mon Jan 07, 2013 at 05:18 PM PST with 36 Recommends
No politics tonight, just a song from a decade back, with some pics taken on a western run about the same time, plus the usual pretty stuff you find on the intertubes. For every one who's missing ...
by Crashing Vor
Comment Count 3 comments on Sun Nov 27, 2011 at 10:13 PM PST with 11 Recommends
This past Saturday we were able to witness a "SuperMoon" - which is a full or new moon that coincides with a close approach by the Moon to the Earth. Apparently the term "SuperMoon" is relatively ...
by dmhlt 66
Comment Count 19 comments on Mon Mar 21, 2011 at 07:55 AM PDT with 23 Recommends
Rockets versus space elevators. Space elevators versus rockets. From listening to altspace conversations on the subject, one could be forgiven for thinking that these are the only two ways to ...
by Rei
Comment Count 49 comments on Sat Jun 05, 2010 at 12:46 PM PDT with 22 Recommends
This is more of a Science Friday question than anything else. In the olden days, before Pangea (the supercontinent) broke up, it is theorized that the mass of the supercontinent caused a bump or ...
by angrytoyrobot
Comment Count 23 comments on Fri Dec 14, 2007 at 06:30 AM PST with 9 Recommends