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Hideo Yoshihara (April 7, 1921 - October 20, 2002), aeronautical engineer.

As per his obituary in the Seattle Times:
Bellevue, WA - Hideo YOSHIHARA Born April 7, 1921 in Long Beach, CA., Yosh passed away at 81 surrounded by family on Sunday, Oct. 20, 2002 in Bellevue. He is survived by wife, Yuriko Lillian Yoshihara (Clyde Hill), daughter Sandra Stoner (Bellevue), sons Paul (Portland) and Mike (Sacramento), sister Sumi (Long Beach, CA.) and grandchildren Jeff and Debbie Stoner (Bellevue), Andrew and Nick (Portland) & Kristine (Sacramento). He earned a PhD at University of Michigan in Aeronautical Engineering in 1945 (Tau Beta Pi, Sigma Xi, Phi Kappa Phi) and graduated from Military Intelligence School as Second Lieutenant while serving in U.S. Army from 1945-47. Yosh had a fulfilling lifetime career in aerospace: Wright Patterson AF Base (Dayton, Ohio 1947-56), General Dynamics/Convair (San Diego 1956-76, 1970 "Engineer of Year"), Boeing Commercial and Military Airplanes aero research (1976-87, retired), Office of Naval Research (Tokyo, Japan 1988-90). Internationally recognized for his early work in computational fluid dynamics, Yosh was a guest lecturer at major universities in the U.S., Europe and Japan and was honored as Fellow of AIAA (American Institute of Aeronautics and Astronautics). He represented the U.S. on NATO AGARD (Advisory Group for Aerospace Research and Development) Committee for over a decade. Graveside Memorial Services at Green Hills Memorial Park in Rancho Palos Verdes, CA. on Saturday, Nov. 9th at 11:00 a.m. Local arrangements by Green Funeral Home in Bellevue.
obituaries.seattletimes.com/obituary/hideo-yoshihara-1080...

💎💎💎💎

Rohr-produced Bay Area Rapid Transit (BART) rail cars which were produced for the Bay Area Rapid Transit District, a San Francisco Bay Area transit system. Wikipedia says the system began operation in September 1972.

The original SCADA and block signals communications backbone for the system ran on some kind of single-sideband multiplex analog coaxial cable. Cab cars had General Electric MASTR Professional radios with Excalibur ruggedized antennas. The system used VHF Railroad channels. None of this equipment is used today.

Getting this close to the track is not safe. One source says the third rail power source is energized at 1,000 volts DC.

There's upside-down text that reads (partially) "video analyzed" in the sky portion of this image.

I can't read the recognition award.

In France? Comments welcomed if you can tell.

Because this process is final assembly, this Internet Archive page suggests the location shown is Toulouse, France. Since I cannot find pictures of this building in Toulouse, it might also be Paris and a (then) Hamburg, Federal Republic of Germany location.

17 June 1927 was a Friday ...

beachcomber australia Friday, thank you.

Ballylanders and Knocklong are 9km apart!

1911 census has 10 Foleys in DED Ballylanders, only 1 in Knocklong

Best guess is the family of Michael and Brigid Foley

On the Jan 1901 record of the birth of Maurice Francis, Michael is recorded as a Cooper and Shopkeeper

Witnesses at the parents 1900 wedding were William and Maurice Foley, presumably uncles of Father Foley and possibly in this picture

Katherine and Thomas Foley are twins

Under the heading Clerical Changes and Appointments, the Nottingham and Midland Catholic News of Saturday 13 February 1926 contains this:
- Fr. J. Foley C.C. Ballylanders

Exact location: www.openstreetmap.org/#map=19/50.388325/8.069525

Photo is taken from the old Lahn bridge, www.openstreetmap.org/#map=19/50.390745/8.064796

Blue Mountains Library, Local Studies 👍

No windshield.

1920s view of this scene

trove.nla.gov.au/work/244615829 - I think this might be the pic beachcomber australia refers to

Energy saving in manufacturing was becoming a focus. The employees have motor-driven, 24-hour timers. They may have been assigned to install then so that factory equipment turned off outside of working hours.

There are name tags but I can't read any of them.

The heliograph was used to signal using dots and dashes of reflected sunlight, and was used at ranges up to 20 miles and more. It consists of two tripods at center. The left tripod holds a mirror and a foresight to reflect and aim the light, and the right tripod a shutter to break up the reflected sunlight into dots and dashes. The thumbnail image below is a clickable link to a photo I took of a surviving example of this type of heliograph:

Seuss. The diagram you posted is of the 1888 model - some slight changes were made between that and the 1905 model shown here, though the parts and functions were, for the most part, the same. The big change was from the single-flap shutter to the six-blade shutter. Another change was the provision of azimuth adjustment screws on both ends of the mirror bar. The thumbnail below is a hyperlink to a 1913 advertisement for a model 1905 heliograph like the one in the Library of Congress photo:

The Library of Congress also holds a movie of a heliograph like that above in use by US Marines in 1915. The movie shows the heliograph being transported, set up, and operated. A copy is on YouTube, here:
www.youtube.com/watch?v=tdv11gZAUI8

The thumbnail below is a hyperlink to this still from that movie:

A modern video of a heliograph of the type in this LOC photo (operated by a complete beginner) is on YouTube here:
youtu.be/pBgH0Rz7kXY

Thanks Seuss. and signal mirror for this information on the heliograph. I'm sure I'm not the only person who wondered what it was. I'll ask the catalogers to add note saying the soldier is displaying a heliograph.

Jon (LOC P&P)
You're welcome!

A good reference for the 1905 model US Signal Corps heliograph in this 1908 photo is the ~9 page heliograph section in the 1910 US Signal Corps Signal Corps Signaling manual[1]. A more thorough discussion is the ~25 page heliograph section in the 1905 US Signal Corps Signal Corps Signaling manual, with the caveat that the 1905 manual covers the 1892 model US Signal Corps heliograph, not the 1905 model. However, most of the additional material in the 1905 manual applies to both models of heliograph.

The Model 1892 heliograph differed in two respects from the Model 1905 version:
- The 1892 model had the tangent screw for revolving the mirror about a vertical axis attached to only one end, the 1905 model at both ends
- the 1892 model shutter has two blades, and the Model 1905 has six blades

Detailed descriptions and dimensions of the ten components (of nine types) of the Model 1905 heliograph are in [3]

[1] Visual Signaling, Signal Corps, United States Army, 1910, Washingon GPO, pages 13-22,
which is available online at many places:
Hathitrust: (six copies) catalog.hathitrust.org/Record/006542023
Google Books: www.google.com/books/edition/Visual_Signaling/oiguAAAAYAAJ

[2] Manual of Visual Signaling of the U.S. Signal Corps, 1905, Washingon GPO, pages 63-88,
which is available online at many places, including:
Hathitrust: babel.hathitrust.org/cgi/pt?id=hvd.32044080709215&seq=69
babel.hathitrust.org/cgi/pt?id=uiug.30112077589635&se...
Google Books: www.google.com/books/edition/Manual_of_Visual_Signaling_o...
www.google.com/books/edition/Manual_of_Visual_Signaling_o...
www.google.com/books/edition/Manual_of_Visual_Signaling_o...

[3] Storage Catalog, Signal Corps, 1920, GPO
which is available online at many places, including:
Google Books: www.google.com/books/edition/Storage_Catalogue/WgKAfBPtDL8C

This book lists the ten heliograph components (of nine types) on:
p. 495: 800-1720 SET, heliograph, type EE-16 (Heliograph Set)
and provides descriptions, dimensions, etc., of those components as follows:
p. 148: 800-529 CASE, type BG-34 (Heliograph Mirror Bar Case)
p. 149: 800- 530 CASE, type BG-35 (Heliograph Mirror Box Case )
p. 149: 800- 531 CASE, type BG-36 (Heliograph Tripod Case )
p. 403: 800-1396 MIRROR BAR, type HL-3 (Heliograph mirror bar)
p. 407: 800-1394 MIRROR, type HL-1 (Heliograph secondary mirror)
p. 407: 800-1395 MIRROR, type HL-2 (Heliograph sun mirror)
p. 570: 800-1893 SHUTTER type HL-6 (Heliograph Shutter)
p. 571: 800-1897 SIGHTING ROD, type HL-4 (Heliograph sighting rod)
p. 669: 800-2221 TRIPOD, type HL-5 (Heliograph Tripod)

Jon (LOC P&P)
I also have a Flickr album of photographs I took of a 1905 model US Signal Corps heliograph set, here:
www.flickr.com/photos/signalmirror/albums/72157638305720675/

Lovely document - such beautiful handwriting

F-51H behind them, based on the prop and exhaust shape.

Kildavnet Castle?

Now that is a low catalogue number!

Carrigaholt it is

Phew! Still standing and ivy-free. In 2015 via murphman61

Wikipedia tells of 'Murder Holes' ...
en.wikipedia.org/wiki/Carrigaholt#Carrigaholt_Castle
en.wikipedia.org/wiki/Murder_hole

Sunny GoogleSphereThingy

Lots of history and archaeology at the NIAH

[Aside] Spot the differences -
catalogue.nli.ie/Record/vtls000322285 (Lawrence)
catalogue.nli.ie/Record/vtls000541177 (Holmes)

Bowler hat man looking in a different direction?

Going by the ivy and bottom window, this one seems to be the same day. Three young-ish characters evident -
catalogue.nli.ie/Record/vtls000338811

From the harbour

Link to a photo of a similar fluid cell press in New Hampshire, U.S.A.. Similar ones are identified as "8,600 ton" models.

I'm always concerned about malicious links. Click on any link here with caution.

pix-4-2-day Thank you for your comment. The military photographers are enlisted people who go through specialized training in the communications field including photography.

Congrats on Explore! ⭐ January 10, 2026

Glückwunsch zu Explore !

Beautiful Photograph- Congratulations on Explorer

Congrats on Xplore!!

Congrats on making Explore! 🎉✨ 👏 - Nicely done! 👍

Das ist super.

That a cool photo and congratulations on Explore too

Great find !! Congrats on explore !!

This Picture really stands out from the many others you see here every day and is definitely worth commenting on. I wish more people would do the same and appreciate this work as something great, just as I am doing right now. Keep up the great work!

I can't find any name for this Toshiba key system but the phones were white and used modular G-type handsets. They had electronic ringers.

In the foreground is a historic artifact: a telephone message book. The book uses advanced technology known as "NCR paper." It replaced carbon paper. When the mmessage-taker wrote in this book, the pen pressure made a duplicate copy on a second sheet of paper. The paper was perforated so the message could be put into a mail box or handed to the target. The duplicate served as a log book.

Computer display cathode ray tubles often had green or amber phosphor. Some human interface studies suggested these were the best for human readability. Search for NASA research if you're interested. Most IBM display I saw were green.

Another view of the set of plating tanks.

When you get time: this is flipped horizontally. Please erase this comment when fixed. Thank you.

"C-15" looks like an environmental test chamber. Corrections are welcomed.

I believe this is a quality control image showing an assembly where some of the welds were not ideal.

This seems to be a test article, (marked 'test part'.) I think they're showing a poor quaity weld in this photo. Notice the part has thermocouples (maked TS) in other photos. It looks like the part goes inside of the jet engine nacelle. They're testing and measuring how hot areas on this part become while in use. Corrections or comments are welcomed.

See

From www.ellensburgwa.gov/DocumentCenter/View/23309/2024-Annua...
"The LDC [Landmarks & Design Commission] co-hosted the third annual Historic Preservation Awards event at the Kittitas County Historical Museum in May. The event was open to the public and included a presentation on the 135th anniversary of the great Ellensburg 1889 Fire and overview ofcurrent preservation projects.
- Awards included a community nominated award, where the local community got to recognize, nominate, and vote for an important local historical site.
- The 2024 Community Award recognized the historic windmill building on Main Street."
See ellensburgwa.gov/DocumentCenter/View/19366/Exhibit-B--Win... with photo with new coat of paint."

What an evil-looking Santa.