[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

    It was sunny and warm today.  Most of the snow has melted so I went 
for a walk to check the damage to the forest.  A few dozen broken trees 
ranging from ten inches in diameter to twenty.  Their trunks exploded 
into many shards around thirty feet up.  Only the Doug fir shattered; 
cedar and hemlock trees are unharmed.  Some birds returned and daffodils 
are growing though the remaining snow.

    The sun looks almost bare but the flux is still high.  A rain of 
protons is absorbing RF around the poles.  There was a strong flare from 
a sunspot not yet facing Earth.  Propagation should be OK tomorrow, with 
plenty of QSB and a steady hiss from the ion flow.


Please join us on (or near):

14050 kHz at 2200z Sunday (3 PM PDT Sunday)
   7047 kHz at 0000z Monday (5 PM PDT Sunday)

    73,
       Kevin. KD5ONS






-




    NACA, the National Advisory Committee for Aeronautics, was the 
precursor to NASA.  During the 1920s they codified airfoils with four 
digit numbers.  I wrote some code to give me the coordinates of an 
airfoil surface from their equations.  I created a dozen airfoil 
profiles to place into my wind tunnel code.  Screen shots of the results 
are here:    http://bacona.design/tunnel.html

    And now for something completely different:

https://www.quantamagazine.org/ocean-bacteria-reveal-an-unexpected-multicellular-form-20221102/