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Mark Dow

@markdow.bsky.social
670 followers 945 following 140 posts

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Mark Dow @markdow.bsky.social · 28/09/2026
Ansel has a great series of short videos addressing aspects of FTD (Fronto-Temporal Dementia). This week is FTD Awareness Week 2026. www.youtube.com/user/anseldow
youtube.com
Ansel Dow
The Vanishing Family, fighting to save ourselves from young-onset dementia. Book release on Sept. 29th!
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Mark Dow @markdow.bsky.social · 28/09/2026
7 minute interview with Robert Kolker. www.npr.org/2026/09/26/n...
npr.org
Award-winning journalist Robert Kolker talks about his book, 'The Vanishing Family'
NPR's Scott Simon talks with journalist Robert Kolker about his new book, "The Vanishing Family." It's about a family with a high risk of frontotemporal dementia due to a genetic mutation.
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Luca @lucagalletti.bsky.social · 27/09/2026
Homemade pipe organ by Japanese sound artist and creator, Kajii. IG: @kajii_japan www.instagram.com/kajii_japan?...
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Nicolas Hénin @nicolashenin.net · 17/09/2026
Nice campaign by the Norwegian Consumer Council about the declining lifespan of products. Enjoy!
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Mark Dow @markdow.bsky.social · 14/09/2026
Preorder "The Vanishing Family" by Robert Kolker bit.ly/TheVanishingFamily_Preorder
youtube.com
The Vanishing Family is a NYT Most Anticipated Book of 2026
YouTube video by Ansel Dow
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OPB @opb.org · 13/09/2026
Since 2015, scientists have returned to the same stretch of the Southern Oregon coast to study gray whales and the zooplankton they eat and the kelp forests where they feed. The long-running research project is documenting an ecosystem transformed by the loss of sea stars.
opb.org
Why gray whales are becoming harder to find near Port Orford
Scientists and high school interns are studying gray whales in Port Orford and the changes in kelp and zooplankton that may explain their scarcity.
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Dcmfox @dcmfox.bsky.social · 12/09/2026
Red Lip Bat Fish I swear they are real
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lukelukeluke @lukelukeluke.bsky.social · 12/09/2026
Here is a nice mushroom
A large and beautiful bear’s head tooth mushroom grows from the flaky bark of a dying maple tree in a sultry summer swamp. All photos by me
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Democrat Cats @democratcats.bsky.social · 12/09/2026
This👇👇👇
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Mark Dow @markdow.bsky.social · 28/08/2026
Mt. Hood and partially eclipsed rising moon from Mt. Tabor, Portland Oregon
Pink sky above volcano profile and moon with a soft bite out of it.
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Alex Zalben @azalben.bsky.social · 25/08/2026
Dolly Parton, among a thousand other amazing things she did in her life, gifted over 330 million books to kids through her Imagination Library program. Her passing is a tremendous loss to the world, but you can support the program today to keep it going imaginationlibrary.com
imaginationlibrary.com
Dolly Parton's Imagination Library | USA, UK, IE, CA, AU
Dolly Parton’s Imagination Library is a book gifting program that mails free books to children from birth until they begin school in participating areas.
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Jarome Ali 🇹🇹 🏳️‍🌈 @jarome.bsky.social · 25/09/2024
Purple is just fascinating. Here's a short piece I wrote about why it's also perceptually special. Of course, I also mentioned Prince.
insights.princeton.edu
Prince, perception and purple: The colorful world of wild hummingbirds - Princeton Insights
Princeton Insights reviews new research on the perception of colors (like purple) in hummingbirds.
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David Shiffman, Ph.D. 🦈 @whysharksmatter.bsky.social · 22/07/2026
We attached cameras to whale sharks and captured krill chases never witnessed before
theconversation.com
We attached cameras to whale sharks and captured krill chases never witnessed before
New video captures what whale sharks do when nobody is watching.
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Mark Chadbourn @chadbourn.bsky.social · 16/07/2026
New monkey just dropped.
bbc.co.uk
New monkey species with orange lips found 'hiding' in DRC forest
Scientists describe "amazing feeling" to look into the face of an animal that so few people knew existed.
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c0nc0rdance @c0nc0rdance.bsky.social · 07/07/2026
Mom, Dad & their 19 babies drinking some water from a backyard pond. These are Gambel's Quail (Callipepla gambelii) in the Catalina Foothills of Arizona. Let's ask why they drink via the 'sip-and-tilt' method... (📷: Desert Critters of Arizona via YT)
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Mr RobertBob @mrrobertbob.bsky.social · 20/06/2026
Can I introduce you to a Leaf Sheep…a type of sea slug about the size of a grain of rice. 🙂
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Mark Dow @markdow.bsky.social · 07/06/2026
Portland Taiko performing downtown, next to Schnitzer Concert Hall.
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Mark Dow @markdow.bsky.social · 05/06/2026
SE 56th and Francis, Portland, Oregon
Person on a step-stool decorating a full size horse skeleton and rider painted black with bright colors and pride flags.
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Michelle says: Be kind. Always. ❤️ @snarkysillysad.bsky.social · 02/06/2026
Richard Sidey gives us a close-up of a Humpback Whale, filmed while on a research assignment: #AGoodPlace Source: www.reddit.com/r/NatureIsFu...
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Mark Dow @markdow.bsky.social · 27/05/2026
South side of Mt. Tabor Park, Portland, Oregon
An e-unicyclist with green reflective stripe across their back at center is moving away along a wide trail, with a headlight illuminating ahead. The trail is surrounded by trees and undergrowth.
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Ben Collins @bencollins.bsky.social · 11/05/2026
This is the University of Central Florida. So many people really have no idea how much kids hate this shit.
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Mark Dow @markdow.bsky.social · 11/05/2026
Reservoir Number 5, Mt. Tabor Park, Portland, Oregon
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old roadside pics @roadside.xor.blue · 23/04/2026
conoco gas pump, rt 34, utica, nebraska, 1980
conoco gas pump, rt 34, utica, nebraska, 1980
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Mark Dow @markdow.bsky.social · 23/04/2026
Sweet Bean Box arrived minutes ago. I now have a Bean guy: bsky.app/profile/bill...
bsky.app
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Cerebro Digital @cerebrodigital.net · 03/04/2026
Un pulpo escapa montando una anguila, demostrando su inteligencia y adaptabilidad en el océano. ¡Supervivencia en acción!
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Mark Dow @markdow.bsky.social · 02/04/2026
Canada goose eggs, at the edge of Columbia Slough, Portland, Oregon.
Four large white eggs, amongst dry leaves and down in a ground level nest.
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BWJones @bwjones.bsky.social · 01/04/2026
Lookit this absolute unit of a turkey outside my house. Mathematically speaking, it’s |turkey|.
A full grown male turkey.
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Mark Dow @markdow.bsky.social · 01/04/2026
Retro litter. Mt. Tabor in Portland Oregon.
An aluminum pull-tab beer can (), amongst sticks and cedar scales.
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Astronomy 🔭 @astronomy.bsky.social · 16/03/2026
NGC 1566, the Spanish Dancer Galaxy, is a grand design spiral 40 million light-years away. Its flaring center makes it one of the closest and brightest Seyfert galaxies, powered by an active supermassive black hole. Credit: NASA/ APOD
NGC 1566: The Spanish Dancer Galaxy
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Brymo @brymo.bsky.social · 15/03/2026
Alien Ocean #829 taken 8:42 pm Macro photograph of an abalone shell #art #photography #nature
Close-up of abalone shell interior showing iridescent nacre. Layered, rippled surface shifts across purple, blue, green, and pink, with rainbow highlights scattered throughout.​​​​​​​​​​​​​​​​
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Dorothea Lange @dorothealange.mastodon.ozioso.online.ap.brid.gy · 03/03/2026
Two of the seven Browning children in doorway of their Oregon home. Dead Ox Flat, Malheur County, Oregon. General caption number 67-111 #Oregon #MalheurCounty #DorotheaLanges #American #DeadOxFlat #undefined #photography #DorotheaLange www.loc.gov/pictures/item/2017773655
The image shows two children standing in a doorway, separated by vertical panels that resemble window frames. The child on the left is wearing a polka dot dress and holding something close to their face with both hands near the mouth area. Their hair appears unkempt and they have an expression of distress or contemplation. On the right stands another child dressed in overalls, which appear worn out and stained. This child's arms are also positioned around the neck level as if mimicking a gesture made by the other person on their side. Both children seem to be in disarray; one is holding what looks like bread above their mouth while the other has an unfastened button or item near its chest.

The background reveals wooden planks and weathered paint, suggesting this could be a rustic setting possibly indicative of hardship times based on clothing condition and overall atmosphere. There's some debris visible in the upper left corner against one of the panels behind them, further reinforcing that they may not have access to clean living conditions or resources for proper hygiene.

The image is presented as part of Dorothea Lange's work documenting various aspects of American life during challenging times. The specific caption indicates it was taken at Dead Ox Flat in Malheur County, Oregon and features the Browning children; further information about this series can be found o [...]
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Dorothea Lange @dorothealange.mastodon.ozioso.online.ap.brid.gy · 05/03/2026
Mrs. Botner arranging her storage cellar. Nyssa Heights, Malheur County, Oregon #Botner #NyssaHeights #MalheurCounty #Oregon #MaryJanes #undefined #photography #DorotheaLange www.loc.gov/pictures/item/2017773846
A black and white photo shows a woman in the process of organizing or retrieving jars from shelves. She is wearing a knee-length dress with floral patterns, shoes that appear to be Mary Janes, which are low-heeled pumps commonly worn by women for comfort during the early-to-mid-20th century. The setting seems like an old-fashioned pantry or cellar as evidenced by wooden racks and crates on the floor holding more jars of preserved fruits and vegetables. Various tags with handwritten labels adorn some items, indicating organized storage but possibly outdated methods such as "red grapes," which may not be a typical item to preserve in this manner today. The scene depicts everyday life during an earlier era when home food preservation was prevalent due to economic reasons or lack of access to modern conveniences like supermarkets.
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Dorothea Lange @dorothealange.mastodon.ozioso.online.ap.brid.gy · 07/03/2026
"Pond monkey" channels log raft. Keno, Klamath County, Oregon. General caption number 61 #KlamathCounty #Oregon #Japanese #undefined #photography #DorotheaLange www.loc.gov/pictures/item/2017773350
A black and white photograph depicts a man standing on logs in shallow water, holding what appears to be a long tool or weapon. He is wearing casual attire including trousers, shoes, socks, gloves, a shirt with rolled-up sleeves, and a cap. In the background are trees and more floating tree trunks suggesting this could be near a river or lake. The image includes text at the top right corner indicating "1930" in Japanese characters, which might relate to its date of creation. There is also additional descriptive text provided: "Pond monkey" channels log raft. Keno, Klamath County, Oregon." and General caption number 61 https://images.loener.nl/DorotheaLange/full/6495/6495b829ba25398d90c4ffc7.jpg The overall scene is indicative of a historical or rural setting where manual labor involving water bodies, such as rafting, may have been common.
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Hubble 🔴 Gallery @hubble-telescope.bsky.social · 12/03/2026
ESA/Hubble (@esa.int) images (Dec 16, 2019) IC 2051, located 85 million light-years away in Mensa, showcases a spiral structure with a central bulge, important for studying galactic evolution. esahubble.org/images/potw1950a/
Image of IC 2051, a spiral galaxy with a central bulge, observed by the Hubble Space Telescope. Credit: ESA/Hubble & NASA, P. Erwin et al.
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Mark Dow @markdow.bsky.social · 08/03/2026
en.wikipedia.org/wiki/Mary_Fi...
en.wikipedia.org
Mary Fields - Wikipedia
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Some kind of invasive ape 🏳️‍⚧️ @wargonopsid.bsky.social · 03/03/2026
morethanjustparks.substack.com/p/blm-announ... there's info on who to complain to to try to stop this at the end of the article, lets share this message and try our best to stop it.
morethanjustparks.substack.com
BLM Announces Plan to Fell Oregon's Last Great Forests
One billion board feet per year... 30 days to make your voice heard.
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Mark Dow @markdow.bsky.social · 22/02/2026
Transition between laminar and turbulent flow below a weir.
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Mark Dow @markdow.bsky.social · 20/02/2026
Portland Oregon evening.
Parking lot trees illuminated from top by lamppost lights, a crescent moon in dark blue sky.
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Mark Dow @markdow.bsky.social · 28/01/2026
Ice claws after a sheet of ice slid down corrugated roofing and refroze. Picture and catio by Ansel Dow, Durham, North Carolina.
A uniform row of conical ice forms extending out and down from a small corrugated roof. Dark blue sky behind and red and wire painted cat porch below.
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Rob Cruickshank @robcruickshank.bsky.social · 25/01/2026
Always fun to watch on a day like today: www.nfb.ca/film/snow_fi...
nfb.ca
Snow Fighters
A close-up of a snow-bound city, and the men, money and machinery it takes to dig it out.
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Robert "The Bobby Yaga" McNees @mcnees.bsky.social · 22/01/2026
Felix Klein lectured “On Hilbert’s first note on the foundations of physics" at the Mathematical Society of Göttingen #OTD in 1918. He included excerpts from letters in which he and Hilbert give priority to Emmy Noether’s results on conservation of energy in general relativity. (1/n) 🧪 ⚛️ 👩‍🔬
Black and white photograph of Emmy Noether. She is standing just behind an ornate chair, wearing a white striped blouse with puffy shoulders, a fluffy bow at her neck, and a heavy long skirt cinched with a belt. Her dark hair is pulled back and she is looking a bit to the photographer's right.
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Mark Dow @markdow.bsky.social · 20/01/2026
Columnar ice, formed under a thin layer of dirt/organics after a cold clear night. Mt. Tabor, Portland, Oregon
Fingers holding a slab of vertically striated ice, about 2cm thick, sandwiched between thin layers of muck.
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Mark Dow @markdow.bsky.social · 19/01/2026
Excellent and entertaining documentation of the engineering and laying of an underwater power cable. www.youtube.com/watch?v=wCHt...
youtube.com
25,000 Volts Under the Sea: Laying of the San Juan Cable (1952)
YouTube video by BonnevillePower
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Bob McIntosh @scotfot.bsky.social · 16/01/2026
Turkish oak acorn case
A double Turkish oak acorn case with characteristic prickly acorn cap. Looking like a tentacles of sea anemone
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Mark Dow @markdow.bsky.social · 16/01/2026
The Department of Homeland Security in their fancy helicopter N1977G is keeping Portland safe today by sightseeing around the Mt. St. Helens caldera at 8,000+ feet.
Flight track and data of DHS helicopter above Mt. St. Helens.Flight track and data of DHS helicopter above Portland and Oregon City on its way to Mt. St. Helens.
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Dr Craig R McClain @drcraigmc.bsky.social · 15/01/2026
Deep-sea sponge appreciation post: Bolosoma is a glass sponge that builds vertical structure in the deep sea, creating habitat for a whole host of life. IN 2025 on dives in Papahānaumokuākea, some had heads nearly a meter wide. 📷 NOAA Ocean Exploration, 2025 Beyond the Blue
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Mark Dow @markdow.bsky.social · 10/01/2026
SE Portland Oregon, 2025-01-09
Handmade framed sign on post near o front door reading “Justice for Renee Good”.
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Krista Koeller @kristalerista.bsky.social · 06/01/2026
I just stumbled upon featherbase, a database of feather pictures from a bunch of bird species.🪶 So pretty! www.featherbase.info/zh/home
A picture of green jay feathers (Cyanocorax luxuosus). They are all lined up and organized: primaries, secondaries, coverts, tail feathers. Most of the feathers are gray with a green tip.
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Mark Dow @markdow.bsky.social · 31/12/2025
Hair ice, this morning on the Buxton-Vernonia trail, Oregon.
Furry ice curls on branches.Furry ice curls on branches.Furry ice curls on branches.Furry ice curls on branch, next to a sword fern.
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Mark Dow @markdow.bsky.social · 31/12/2025
Social Good Place, a "co-working space for people working on social change", SE Portland Oregon
A converted church building on a street corner, with bright organic/floral shapes on a saturated yellow background, contrasting with blue skies behind.
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