RSID: <<2022-10-27T23:31Z MFSK-32 @ 9265000+1500>>

THIS PROGRAM 276 OF SHORTWAVE RADIOGRAM WILL BE BROADCAST
20-25 OCTOBER AND REPEATED 27 OCTOBER-1 NOVEMBER 2022


Welcome to program 276 of Shortwave Radiogram.

I'm Kim Andrew Elliott in Arlington, Virginia USA.

Here is the lineup for today's program, in MFSK modes as noted:

  1:36 MFSK32: Program preview (now)
  2:43 MFSK32: Jazz gets its swing from the timing
  7:03 MFSK64: Over 30,000 near-Earth asteroids discovered
10:05 MFSK64: This week's images*
28:27 MFSK32: Closing announcements

* with image(s)


 

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And visit http://swradiogram.net

We're on Twitter now: @SWRadiogram

From Science News:

Here's where jazz gets its swing

Nearly imperceptible delays in soloists' timing contribute
to the music's signature rhythm

By Nikk Ogasa
October 6, 2022

It don't mean a thing if it ain't got that swing - all you've got
to do is stagger your timing.

For decades, fans of jazz music have debated why some songs have
swing - the characteristic swaying feeling that compels feet to
tap and heads to bop. Now, scientists may finally have an answer
to Louis Armstrong's classic song "What Is This Thing Called
Swing?" and the secret lies in the timing of jazz soloists.

After listening to original and digitally tweaked piano
recordings, jazz musicians were more than seven times as likely
to rate music as "swinging" when the soloist's timing was
partially delayed with respect to the rhythm section, researchers
report October 6 in Communications Physics.

In jazz, musicians are trained to swing eighth notes, or extend
the duration of their downbeats - every other eighth note - and
shorten the beats in between to create a galloping rhythm. But
the technique on its own doesn't explain swing, says physicist
Theo Geisel. Computer-generated jazz songs with swung eighth
notes still lack the style's swaying feel.

Past research hinted that swing might arise from differences in
the timing between musicians within a band. So Geisel and
colleagues tweaked only the timing of the soloists in jazz
recordings on a computer and asked professional and
semiprofessional jazz musicians to rate each recording's swing.

Musicians were nearly 7.5 times as likely to judge music as more
swinging when the soloists' downbeats were minutely delayed with
respect to the rhythm section, but not their offbeats.

Most of the musicians couldn't put their finger on what was
causing the effect, says Geisel, of the Max Planck Institute for
Dynamics and Self-Organization in Göttingen, Germany.
"Professional jazz musicians who have played for many years
apparently have learned to do this unconsciously."

The researchers also analyzed 456 jazz performances from various
artists and found almost all soloists used downbeat delays, with
an average delay of 30 milliseconds. This average held across the
jazz subgenres of bebop, swing and hardbop, though there was some
variation, Geisel says. "For faster tempos, the delays get
smaller."

Looking ahead, Geisel intends to investigate how "laid-back
playing" - a popular style of delaying both downbeats and
offbeats in jazz - influences swing.

https://www.sciencenews.org/article/jazz-music-swing-rhythm-timing

See also:
https://phys.org/news/2022-10-secret-lab.html



Shortwave Radiogram changes to MFSK64 when the music ends ...





RSID: <<2022-10-27T23:37Z MFSK-64 @ 9265000+1500>>



This is Shortwave Radiogram in MFSK64

Please send your reception report to radiogram@verizon.net
 

From New Atlas:

Near-Earth asteroid tally ticks over 30,000 milestone

By Michael Irving
October 13, 2022

As the dinosaurs could attest, it's worth keeping an eye on any
big space rocks that might be buzzing around Earth. A fleet of
observatories are doing just that, and astronomers have now
announced that we've just ticked over the milestone of 30,000
near-Earth asteroids (NEAs) discovered.

Asteroid impacts can be dangerous events, devastating areas the
size of a city, country, or if we're really unlucky, the entire
planet. Having some forewarning of an impending doomsday rock
could give us time to intervene – especially since NASA's DART
mission has recently demonstrated that we can in fact alter an
asteroid's orbit.

So, since the turn of the century astronomers have ramped up
efforts to catalog objects whose orbits bring them close to
Earth. These near-Earth asteroids are officially defined as those
that come within about 45 million km (28 million miles) of our
planet's orbital path around the Sun. That's about 117 times the
distance to the Moon.

A range of observatories are keeping watch, and discoveries are
gathered and tracked by ESA's Near-Earth Object Coordination
Centre (NEOCC) and NASA's Center for Near-Earth Object Studies
(CNEOS). And in early October, this list finally clocked the
30,000 object mark.

Among the 400 newcomers that tipped the tally over the line, 50
were estimated to measure more than 140 m (460 ft) wide. A rock
of that size could wipe out a city with a direct hit, or cause a
decent amount of destruction to a region, so those are the ones
that astronomers want to watch. Just one of these new NEAs
measured more than 1 km (0.6 miles) wide, which would devastate a
much greater area on impact.

Thankfully, the list of potentially hazardous asteroids grew more
slowly. Only eight of those new NEAs make the cut for this list,
which is defined as being over 140 m wide and coming within 19.5
lunar distances of Earth. The 1-km-wide rock was one of them.

Most of the time, further observations rule out any chance of
impact in the coming decades. However, there are currently 1,426
asteroids with a "non-zero" chance of impact, which are being
carefully studied as part of the NEOCC's Risk List.

Currently sitting right on top is a huge rock known as 1979XB,
which earns its Most Wanted status in a few ways. For one, it's
estimated to have a diameter of about 700 m (2,300 ft), which
would devastate a small country if hit. Worse still, it hasn't
been seen since 1979 so astronomers can't pin down where it is
now with any real certainty – but there's a small chance it may
strike Earth in 2056.

In the more immediate future, there's a 0.05% chance that 1979XB
makes a close (but safe) pass by Earth in December 2024, in which
case astronomers would be able to lock onto it again and
calculate its orbit more precisely and probably rule out future
impacts.

As devastating as an asteroid impact could be, it should be
reassuring to know that there are so many eyes on the sky, and
they're getting better and better at finding these rocks.

"The good news is that more than half of today's known near-Earth
asteroids were discovered in the last six years, showing just how
much our asteroid eyesight is improving," said Richard Moissl,
ESA's Head of Planetary Defence.

Sources: ESA, CNEOS

https://newatlas.com/space/near-earth-asteroid-count-30000/

See also:
https://www.dw.com/en/nasa-says-dart-mission-succeeded-in-altering-asteroids-orbit/a-63408866
https://newatlas.com/space/nasas-asteroid-ramming-mission-shortened-dimorphos-orbit-32-minutes/
 

This is Shortwave Radiogram in MFSK64

Please send your reception report to radiogram@verizon.net

This week's images ...



A "cool clock" in a tailor shop in the Detroit area. It was made
in 2018 by Danielle Rahmoeller. https://bit.ly/3RYhDhG ...

Sending Pic:190x180C;









This growing tip of a red algae is a winner of the Nikon 2022
Photomicrography Competition. https://bit.ly/3CIfO30 ...

Sending Pic:177x166C;







This work by Turkish artist Refik Anadol was featured at Signal,
a light festival in Prague, October 13-16. https://bit.ly/3yLyc9Y
...

Sending Pic:203x134C;








Rensselaer, Indiana, population 6000, has more than 60 murals on
its buildings. https://bit.ly/3VuoOkH ...

Sending Pic:209x124C;









Herd Groyne Lighthouse in South Shields, Tyneside, England.
https://bbc.in/3SXApHj ...

Sending Pic:172x199C;

A red admiral butterfly on the mane of a Shetland pony near
Selkirk, Scotland. https://bbc.in/3S4zELk ...

Pic:163x175C;









Point State Park in Pittsburgh, October 14.
https://bit.ly/3T8Lo0E ...

Sending Pic:194x168C;






Sunrise in Shady Side, Maryland, October 11.
https://bit.ly/3ezlAvD ...

Sending Pic:163x204C;







A tower of pumpkins and related fruits at an arboretum in
Minnesota. https://bit.ly/3D0wy6C ...

Sending Pic:141x206C;







Our painting of the week is "Autumn in Pilar" by Ed Sandoval.
https://bit.ly/3rWRhlt ...

Sending Pic:131x211C;




 

Shortwave Radiogram returns to MFSK32 ...



RSID: <<2022-10-27T23:58Z MFSK-32 @ 9265000+1500>>

This is Shortwave Radiogram in MFSK32 ...

 

Shortwave Radiogram is transmitted by:

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I'm Kim Elliott. Please join us for the next Shortwave
Radiogram.

RSID: <<2022-10-30T1:30Z MFSK-32 @ 5960000+1500>>

 

Wayne Fontana of the Mindbenders was born Glyn Geoffrey Ellis, October 28, 1945.
He died in 2020.
 

Sending Pic:204x240;

bit.ly/3RDG6c6
Please report your decode to themightykbc@gmail.com

          https://www.dropbox.com/s/uct5engqwkskmex/boca.homeip.net_2022-10-16T00_56_19Z_5010.00_iq.flac?dl=0

    http://www.rhci-online.net/html/RNEI34.html         http://www.rhci-online.net/html/RNEI34-ch292.html

    http://www.rhci-online.net/html/RNEI33.html         http://www.rhci-online.net/html/RNEI33-ch292.html

    http://www.rhci-online.net/html/RNEI32.html         http://www.rhci-online.net/html/RNEI32-ch292.html

    http://www.rhci-online.net/html/RNEI31.html         http://www.rhci-online.net/html/RNEI31-ch292.html

  mammantytöt! - Erojaisryyppy

  Smith & Thell - I Feel It In The Wind       https://scandipop.co.uk