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Things I learned This Week

 OK, yeah I do have new art work (via Broken Ankle Art) but I also learned some interesting things this week.  Here we go.

Thing #1 :

The NASA asteroid probe collected some samples from a quite touch down.  A complete success that they are not even going to weight it.  So how do you weight something in space?  In this case they have the collection at the end of a long arm.  To weight the sample, the spin the craft and from the amount of thrust used and the resulting spin rate they can determine the mass of the sample at the end of the arm.  Pretty cool.

Thing #2 :

The earth is always producing sounds (volcanos, earth quakes, asteroid strikes, man mucking around, etc), but there is a constant 26 sec vibrations coming from the south Atlantic off the coast of Africa.  This was discovered about 30 years ago and through modern equipment has been narrowed to the bay (way off shore) off of Equatorial Guinea.  From a map you can tell the alignment of volcanic islands trending to the NE, but a recent paper suggests the vibrations are from waves.  The location of the vibrations appears to move based on the seasons so, as volcanos don’t move (very fast anyway) the waves theory sounds good.  Just an interesting story.

Because you have read this far, here is the latest art work (via Broken Ankle Art - works).

Enjoy



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