RSID: <<2021-07-15T23:31Z MFSK-32 @ 9265000+1500>>

Welcome to program 213 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:

  1:41 MFSK32: Program preview (now)
  2:46 Small spacecraft can catch up with interstellar objects*
  8:40 MFSK64: Shipping containers at transonic speeds*
14:16 This week's images*
28:36 MFSK32: Closing announcements

* with image(s)


Please send reception reports to radiogram@verizon.net

And visit http://swradiogram.net

Twitter: @SWRadiogram





From Phys.org

A small satellite with a solar sail could catch up with an
interstellar object

Scott Alan Johnston, Universe Today
July 5, 2021

When 'Oumuamua, the first interstellar object ever observed
passing through the solar system, was discovered in 2017, it
exhibited some unexpected properties that left astronomers
scratching their heads. Its elongated shape, lack of a coma, and
the fact that it changed its trajectory were all surprising,
leading to several competing theories about its origin: was it a
hydrogen iceberg exhibiting outgassing, or maybe an
extraterrestrial solar sail (sorry folks, not likely) on a
deep-space journey? We may never know the answer, because
'Oumuamua was moving too fast, and was observed too late, to get
a good look.

It may be too late for 'Oumuamua, but we could be ready for the
next strange interstellar visitor if we wanted to. A spacecraft
could be designed and built to catch such an object at a moment's
notice. The idea of an interstellar interceptor like this has
been floated by various experts, and funding to study such a
concept has even been granted through NASA's Innovative Advanced
Concepts (NIAC) program. But how exactly would such an
interceptor work?

A new paper released on ArXiv on June 27th explores one possible
mission design. Derived from the NIAC study, the proposal
suggests combining solar sail technology with the ability to
miniaturize space probes to small, lightweight sizes.

Missions like JAXA's IKAROS probe to Venus and the Planetary
Society's ongoing LightSail 2 project in Earth orbit have shown
that solar sails, which use photons from the sun to accelerate,
are entirely feasible propulsion systems. Similarly, the
successful use of CubeSats on interplanetary missions was
demonstrated by the Jet Propulsion Laboratory in 2018. They sent
two CubeSats, named Mars Cube One (MarCO-a and MarCO-b), to
accompany the InSight lander on its journey to the red planet.
The CubeSats worked like a charm.

When combined, solar sails and CubeSats could be a powerful tool
for exploration.

To intercept an interstellar object, the paper proposes that a
solar-sailing CubeSat could be launched ahead of time, 'parking'
in an orbit around the sun where it would wait quietly for the
discovery of the next interesting object worth chasing. A fast
response vehicle like this would allows for various mission
designs. A five-year mission, for example, could easily catch up
and study an interstellar object, beaming back to Earth the kind
of data that we failed to get from 'Oumuamua. On the other hand,
a similar spacecraft could even carry out a sample return
mission, if given a longer timeframe of ten years.

One of the major engineering challenges for such a mission
concerns the solar sail's ability to manage heat. The interceptor
would have to travel much closer to the sun than any previous
solar sail tests, which usually use aluminum coated with Kapton.
The properties of this material might enable it to survive within
0.15 AU of the sun without melting, but careful consideration
will have to be given to shielding the control mechanisms and
other spacecraft systems without adding too much to the
spacecraft's mass. Too heavy, and the sail won't be able to catch
up with the target.

The value of an interceptor spacecraft like this is pretty clear.
Even though we've only seen two interstellar objects so far, they
are probably passing by all the time. Better telescopes coming
online this decade will help us find them, but they move fast,
and don't stay for long. If we want to study an interstellar
object up close, we're going to have to be ready for it, and a
fast response interceptor spacecraft is likely our best chance at
success.

https://phys.org/news/2021-07-small-satellite-solar-interstellar.html
 

Shortwave Radiogram now changes to MFSK64 ...



 

RSID: <<2021-07-15T23:38Z MFSK-64 @ 9265000+1500>>
 

This is Shortwave Radiogram in MFSK64

Please send your reception report to radiogram@verizon.net

 

From New Atlas:

HyperPort would fire shipping containers around at transonic
speeds

By Loz Blain
July 9, 2021

Hyperloop Transport Technologies has presented an
ultra-high-speed shipping port logistics system it says can shift
up to 2,800 containers a day, covering hundreds of kilometers in
minutes – while decreasing emissions wherever it's rolled out.

The whole thing would be like a giant cargo-carrying version of
the pneumatic tube systems that once blasted thousands of
messages around every hour, back when things were all black and
white. As long as those things were around, innovators dreamed of
one day building scaled-up versions big enough to move passengers
and cargo.

The hyperloop dream, of course, takes it all to the next level.
Mag-lev rails eliminate rolling resistance, and hundreds of
kilometers of sealed tubes would be vacuum-evacuated to nearly
eliminate air resistance. Thus, most of the energy you use to
accelerate a capsule up to supersonic speeds (don't worry,
there's not enough air in there to create a sonic boom) can be
recovered at the other end with minimal losses. Super-fast,
super-efficient and pretty damn cool.

And that's the model here with HyperloopTT's port logistics
system, which it's spent some 20,000 hours developing in
partnership with Hamburger Hafen und Logistik AG of Germany, a
logistics and transport company that runs a number of container
terminals and has a business name that makes it all sound a lot
more exciting than it probably is.

HyperloopTT is one of a few key companies pushing this kind of
technology forward. It's already drawn in some pretty decent
funding, and employs more than 800 people across its many offices
in North and South America, Europe and the Middle East. It's
built a full-size prototype passenger capsule measuring 32 m (105
ft) long, featuring the company's own proprietary "Inductrack"
mag-lev technology and sensor-embedded "Vibranium" carbon fiber
skin.

It's laid out some 320-odd m (1,050 ft) of fully functional test
track in France, vacuumed down to hundred-pascal pressure levels
lower than what you'd get at altitudes over 38,000 m (125,000
ft). It's long enough to do some initial tests, but obviously not
to approach the 1,220+ km/h (760 mph) top speed the passenger
system is projected to hit when it's got some room. The company
has signed some exciting-looking deals in India, China, the USA
and the United Arab Emirates over the last six or so years, but
no full-scale implementation seems to be under construction yet.

Fair enough; the World Bank estimated in 2014 that even a regular
high-speed train track costs somewhere between US$17 million (in
China) and $56 million (in California) per kilometer of track.
And that's without putting the whole thing in a huge, airtight
tube with vacuum pumps and some of the largest, strongest
mechanical pressure valves ever built dotted along its length.
The up-front capital cost of a cross-continental supersonic
hyperloop system would be epic – but once up and running,
HyperloopTT says it could deliver "airplane speeds at freight
costs."

The HyperPort development proposes to plug container shipping
logistics into the mix, with freight capsules designed to open at
the top and accept either two standard 6-meter (20-ft) shipping
containers or one double-length 12 to 13.7-m (40 to 45-ft) unit,
dropped in and picked up by the same sorts of gantry cranes that
already load and unload container ships. Freight speeds would be
limited to around 965 km/h (600 mph), so either the passenger
pods would have to slow down to this speed as well, or separate
tracks would be needed.

It's all very pretty and futuristic-looking, and HyperloopTT says
it's designed everything to meet current industry standards. The
HyperPort is now being submitted for certification design review,
and the company says the next step will be a VR demonstration, to
be presented at the ITS World Congress in Hamburg this October.

It's a long and winding road from concept to reality, obviously.
And while a solution like this would indeed be much faster and
greener than the battalions of trucks that get the job done
today, battery and fuel cell trucks are on the way, ready to haul
containers to anywhere roads can take them, with zero local
emissions.

The crazy speeds promised by the HyperPort will come at a hefty
cost, but they could cut down a lot of road miles and get things
moving even faster in a world whose patience grows ever shorter.
I wonder if we'll see this kind of thing get done – vacuum tube
transport seemed just years away back in the 1800s too. Between
Virgin Hyperloop, HyperloopTT, TransPod and other companies, it
seems investors feel this kind of thing is ready for prime time.

https://newatlas.com/transport/hyperport-containers-hyperloop/

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This is Shortwave Radiogram in MFSK64

Please send your reception report to radiogram@verizon.net
 

This week's images ...






Deer on a shore of Loch Hourn, Scotland. https://bbc.in/2ULE4yz
...

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Sunset at Blackness, Scotland. https://bbc.in/2ULE4yz ...

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Middletown, Maryland, facing west towards South Mountain, July
12. https://bit.ly/2VEd3Ob ...

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A monarch butterfly flexes its wings in Marple Township,
Pennsylvania. https://bit.ly/2U2JmWs ...

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The pier at Fontainebleau State Park, on the north shore of Lake
Pontchartrain, Louisiana. https://bit.ly/2VEgYdR ...

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Betony, Betonica officinalis, at Jubilee County Park, London.
https://bit.ly/3hXbQc4 ...

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Hybrid pimpinellifolia shrub rose (Rosa 'Golden Wings') at the
Arboretum at Penn State. https://bit.ly/2U8VDbU ...

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Our painting of the week is "Usonian View" by Michelle Lewis.
https://bit.ly/3AX3Osq ...

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Shortwave Radiogram returns to MFSK32 ...
 

RSID: <<2021-07-15T23:58Z MFSK-32 @ 9265000+1500>>


This is Shortwave Radiogram in MFSK32 ...

 

Shortwave Radiogram is transmitted by:

WRMI, Radio Miami International, wrmi.net

and

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Please send reception reports to radiogram@verizon.net

And visit http://swradiogram.net

Twitter: @SWRadiogram or twitter.com/swradiogram

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

RSID: <<2021-07-15T02:46Z MFSK-64 @ 5850000+1500>>


This Is A Music Show #123


This Is A Music Show #124
15 July 2021


0200-0300UTC Thursday on 5850 kHz

via WRMI, Okeechobee USA


***ALSO***

TIAnExpressMS w/ Radio Northern Europe International
via Channel 292 in Germany, on 6070 kHz.

Broadcast various dates/times. Check the schedule here:

https://www.channel292.de/schedule-6070-khz/
https://rnei.org/

----------------------------------------

PLAYLIST

Shorty Rogers - The Froggie

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The Soup Dragons - I'm Free

-----

The Rising Sun - Wishin' And Hopin'
Earth And Fire - Ruby Is The One
Babe Ruth - A Fistful Of Dollars

-----

James Brown - Good Foot Pt.1
JB Beat - Freak City
M Squad - Grooving Out On Life VERSION

-----

The Caravan - Joseph In Egypt
Andwella - Michael FitzHenry
The Swindell Brothers - It's Time

-----

THIS DATA w/ Bert Kaempfert - Friends

-----

Autechre - Dek Dre Scap B

----------------------------------------


TIAMS Website:

https://thisisamusicshow.com

Go here for show archives + official shop!

-----

Please send reception reports/comments:

thisisamusicshow@gmail.com

Follow TIAMS on Twitter:

www.twitter.com/ThisIsAMusicSho/

------

Thanks for listening!

--YOUR HOST--


EOM

 

RSID: <<2021-07-15T02:48Z MFSK-64 @ 5850000+1500>>

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PLAYLIST