https://github.com/GyanD/codexffmpeg/releases/tag/2023-03-05-git-912ac82a3c

RSID: <<2024-06-27T23:31Z MFSK-32 @ 9265000+1500>>
 

Welcome to program 360 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:

  1:42 MFSK32: Program preview (now)
  2:50 MFSK32: Balloon flights to the edge of outer space*
  8:49 MFSK64: Researchers develop light-harvesting system
11:44 MFSK64: This week's images*
27:59 MFSK32: Closing announcements

* with image(s)


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From New Atlas:


EOS-X Space announces upcoming balloon flights to the edge of
outer space

By Ben Coxworth
June 20, 2024

Paying passengers could be flying to the outer edge of the
stratosphere as soon as next year, but not with the company you
might think. Spain's EOS-X Space has announced that it's nearing
finalization of a seven-passenger capsule that will be hoisted
heavenward by a giant balloon.

When most people think of space balloon rides (if they do), they
think of Florida-based company Space Perspective.

Since 2020, it's been developing a pressurized "Spaceship
Neptune" capsule that will take batches of eight paying
passengers (and one pilot) on six-hour flights up to an altitude
of 100,000 feet (30,480 m).

At that height, the curvature of the earth and the blackness of
outer space are clearly visible. The capsule will be slung
beneath a hydrogen-filled "SpaceBalloon," which will gradually
release the gas in order to descend.

Well, Space Perspective isn't the only player in that game.

Seville-based company EOS-X Space has announced that it is now
finalizing development of its own capsule, the EOS-X, which is
slated to begin commercial flights from bases in Seville and Abu
Dabi in the third quarter of next year.

The pressurized carbon fiber capsule will reportedly carry seven
passengers and one pilot up to an altitude of about 40,000 m
(131,234 ft), hanging beneath a helium-filled stratospheric
balloon. It will launch from the base at dawn, taking two hours
to ascend, two hours to cruise at altitude, and one more hour to
descend and land.

As is the case with Spaceship Neptune, the EOS-X will feature
ergonomic seats, panoramic windows, mood lighting, an onboard
bar, and a lavatory. Passengers will have to shell out €150,00 to
€200,00 (about US$160,550 to $214,060) for the experience, as
compared to $125,000 for a Spaceship Neptune flight.

EOS-X Space hopes to offer particularly wealthy clients even
more, with a planned SpaceHub Complex on La Isla de la Cartuja
(an island on the Guadalquivir River in Seville). There,
passengers will stay at a luxury hotel for a few days while
partaking in activities such as zero-gravity plane rides and VR
space mission simulations, before traveling to the launch base by
helicopter.

The company states that validation tests of the capsule "will
take place soon," in collaboration with Spain's National
Institute for Aerospace Technology.

https://newatlas.com/space/eos-x-space-ballon-flights-outer-space/
 

Illustration of the EOS-X balloon, with the barely visible
capsule circled at the bottom ...

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Shortwave Radiogram now changes to MFSK64 ...


 

RSID: <<2024-06-27T23:38Z MFSK-64 @ 9265000+1500>>


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From TechXplore:


Solar technology: Researchers develop innovative light-harvesting
system

by University of Würzburg
June 26, 2024

In order to convert sunlight into electricity or other forms of
energy as efficiently as possible, the very first step is an
efficient light-harvesting system. Ideally, this should be
panchromatic, i.e. absorb the entire spectrum of visible light.

The light-collecting antennae of plants and bacteria are a model
for this. They capture a broad spectrum of light for
photosynthesis, but are very complex in structure and require
many different dyes to transmit the energy of the absorbed light
and focus it on a central point.

The light-harvesting systems developed by humans to date also
have disadvantages:

Although inorganic semiconductors such as silicon are
panchromatic, they only absorb light weakly. In order to absorb
enough light energy, very thick layers of silicon in the
micrometer range are therefore required—making solar cells
relatively bulky and heavy.

Organic dyes that are suitable for solar cells are much thinner:
their layer thickness is only around 100 nanometers. However,
they are barely able to absorb a broad spectral range and are
therefore not particularly efficient.

Thin layer absorbs a lot of light energy

Researchers at Julius-Maximilians-Universität (JMU) Würzburg in
Bavaria, Germany, in the journal Chem, present an innovative
light-harvesting system that differs significantly from previous
systems.

"Our system has a band structure similar to that of inorganic
semiconductors. This means that it absorbs light panchromatically
across the entire visible range. And it uses the high absorption
coefficients of organic dyes. As a result, it can absorb a great
deal of light energy in a relatively thin layer, similar to
natural light-harvesting systems," says JMU chemistry professor
Frank Würthner.

His team from the Institute of Organic Chemistry / Center for
Nanosystems Chemistry designed the light-harvesting system at JMU
and investigated it together with Professor Tobias Brixner's
group from the Institute of Physical and Theoretical Chemistry.

Four dyes in an ingenious arrangement

Put simply, the innovative light-harvesting antenna from Würzburg
consists of four different merocyanine dyes that are folded and
thereby stacked closely together. The elaborate arrangement of
the molecules enables ultra-fast and efficient energy transport
within the antenna.

The researchers have given the prototype of the new
light-harvesting system the name URPB. The letters stand for the
light wavelengths that are absorbed by the four dye components of
the antenna: U for ultraviolet, R for red, P for purple, B for
blue.

Proven performance via fluorescence

The researchers have demonstrated that their novel
light-collecting system works so well by measuring the so-called
fluorescence quantum yield. This involves measuring how much
energy the system emits in the form of fluorescence. This allows
conclusions to be drawn about the amount of light energy that it
has previously collected.

The result: the system converts 38% of the irradiated light
energy over a broad spectral range into fluorescence—the four
dyes on their own, on the other hand, manage less than 1% to a
maximum of 3%. The right combination and skillful spatial
arrangement of dye molecules in the stack therefore make a big
difference.

https://techxplore.com/news/2024-06-solar-technology-harvesting.html
 

This is Shortwave Radiogram in MFSK64

Please send your reception report to radiogram@verizon.net
 

This week's images ...


A Cal Fire helicopter drops water on a hot spot while battling
the Post Fire near Gorman, California, June 15.
https://tinyurl.com/2h8hfmfq ...

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A Norfolk (England) field, with the soil being ploughed and
harrowed before being left for nature to run its course, is
covered in poppies. https://tinyurl.com/2mx4bl4q ...

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A motorist is silhouetted against the setting sun on the summer
solstice in Raytown, Missouri. https://tinyurl.com/2md384as ...

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A canal boat on the Union Canal in Polwarth in Edinburgh,
Scotland. https://tinyurl.com/2q7gewh8 ...

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A macro photo of a wet dandy lion (dandelion) in Livingston,
Scotland. https://tinyurl.com/2q7gewh8 ...

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Harebells in Sleeping Giant State Park, Connecticut, June 24.
https://tinyurl.com/2lfzn4sb ...

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A flower at the arboretum in Tampere, Finland.
https://tinyurl.com/2noe5puv ...

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A flower at the arboretum in Tampere, Finland.
https://tinyurl.com/2noe5puv ...


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Our painting of the week is "Aspen Trail" by Lauren Forcella (American, b.1955).

https://tinyurl.com/2krwahqk ...

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Shortwave Radiogram returns to MFSK32 ...


 

RSID: <<2024-06-27T23:58Z MFSK-32 @ 9265000+1500>>
 

This is Shortwave Radiogram in MFSK32 ...


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