Dave Mammen
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davemammen.bsky.social
Dave Mammen
@davemammen.bsky.social
420 followers 300 following 90 posts
Retired. Like nature, photography, space, science, travel and books. Can be snarky when leaders are lying and/or behaving badly.
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davemammen.bsky.social
August 18, 2025 at 11:39 AM
davemammen.bsky.social
Hegseth said this about the attack on Iran: “President Trump directed the most complex and secretive military operation in history...”

With respect to all involved, it wasn’t even the most complex operation this YEAR. Operation Roughrider in March was larger and more complex. So was D-Day.
July 2, 2025 at 3:33 AM
davemammen.bsky.social
In a cheerful nod to the past, Crayola is bringing back some retired colors.

Welcome back:

• Dandelion
• Blizzard Blue
• Magic Mint
• Mulberry
• Orange Red
• Violet Blue
• Lemon Yellow
• Raw Umber

You know, happy news is pretty scarce…
February 8, 2025 at 4:45 AM
davemammen.bsky.social
A reminder about proper arrangement of adjectives.
January 2, 2025 at 3:45 AM
davemammen.bsky.social
20 books that have stayed with you. One book per day for 20 days, in no particular order. No explanations, no reviews, just covers.
#20 Life After Suicide, Jennifer Ashton, M.D.

#BookSky
💙📚
#Books
#BookChallenge
White book cover, featuring two groups of people seen from a distance above, gathered together to look like forearms and hands reaching toward each other. About a dozen or so people scattered individually around each hand-shaped group. Book title Life After Suicide in upper case black letters above the hand images. Subtitle in uppercase red letters below the hand images is Finding Courage and Community After Unthinkable Loss, followed by author’s name, Jennifer Ashton, M.D.
December 9, 2024 at 2:08 AM
davemammen.bsky.social
20 books that have stayed with you. One book per day for 20 days, in no particular order. No explanations, no reviews, just covers.
#19 Under a Desert Sky, Lynne Hartke

#BookSky
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#Books
#BookChallenge
Book cover shows Orange Sky above a sunset that silhouettes distant mountains in light shadow and a near one in the foreground darkly. Foreground includes silhouettes of cactus. At the top in white uppercase block letters is author’s name Lynne Hartke. Book’s title Under a Desert Sky appears in large white cursive lettering in 3 lines in the center.
December 7, 2024 at 4:27 PM
davemammen.bsky.social
20 books that have stayed with you. One book per day for 20 days, in no particular order. No explanations, no reviews, just covers.
#18 Decisive, Chip and Dan Heath

#BookSky
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#Books
#BookChallenge
December 6, 2024 at 8:24 PM
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20 books that have stayed with you. One book per day for 20 days, in no particular order. No explanations, no reviews, just covers.
#18 The Eloquence of the Sardine, Bill Francois

#BookSky
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#Books
#BookChallenge
Book cover. Blue seawater with fish in a circle. Octopus at top left, eel at top right, salmon in bottom left, swordfish in bottom right. Center of the circle is white with book title “The Eloquence of the Sardine in blue uppercase letters inside. Below is the subtitle The Secret Lives of Fish and Other Underwater Mysteries in smaller black letters.
December 5, 2024 at 9:51 PM
davemammen.bsky.social
20 books that have stayed with you. One book per day for 20 days, in no particular order. No explanations, no reviews, just covers.
#17 Born to Run: A Hidden Tribe, Superathletes, and the Greatest Race the World Has Never Seen, Christopher McDougall

#BookSky
💙📚
#Books
#BookChallenge
Book cover. Photo of Native American on a mountain peak, looking out into a mountain range under a clear blue sky. At top of the photo - National Bestseller in white, next Born to Run in larger, yellow letters, and then the subtitle in white: A Hidden Tribe, Superathletes, and the Greatest Race the World Has Never Seen, then author’s name, Christopher McDougall in yellows
December 4, 2024 at 9:04 PM
davemammen.bsky.social
Neighbors Re always willing to stop and chat.
December 4, 2024 at 4:04 AM
davemammen.bsky.social
Choose 20 books that have stayed with you or influenced you. One book per day for 20 days, in no particular order. No explanations, no reviews, just covers.
#16 Isaac Newton, James Gleick

#BookSky
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#Books
#BookChallenge
White book cover with author James Gleick’s name at the top in black and Isaac Newton in large black stylized serif font in two lines near the bottom.
December 3, 2024 at 3:54 PM
davemammen.bsky.social
I just discovered that this book has been denounced by the Comanche nation. I felt nothing but respect for the Comanche as I read it, and dismay at accounts of more terrible treatment of indigenous people, but shame on me for not researching their point of view. Denouncement follows below.
December 3, 2024 at 5:58 AM
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December 3, 2024 at 3:01 AM
davemammen.bsky.social
Choose 20 books that have stayed with you or influenced you. One book per day for 20 days, in no particular order. No explanations, no reviews, just covers.
#15 The Little Book of Aliens, Adam

#BookSky
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#Books
#BookChallenge
Book cover, black sky with stars, top 2/3 of the cover includes a thin bluish purple crescent representing a planet or moon, eclipsed by a dark circle superimposed on it. Within the circle, the boon title The Little Book of Aliens, appears in uppercase. Author’s name Adam Frank is aligned with the left-most point of the circle and half-way between the image and the bottom edge of the book cover.
December 3, 2024 at 2:30 AM
davemammen.bsky.social
Views along the Mogollon Rim
December 3, 2024 at 2:18 AM
davemammen.bsky.social
Woods Canyon Lake
December 3, 2024 at 2:17 AM
davemammen.bsky.social
Nature. Because, well, blood pressure.
December 2, 2024 at 1:15 AM
davemammen.bsky.social
Choose 20 books that have stayed with you or influenced you. One book per day for 20 days, in no particular order. No explanations, no reviews, just covers.
#13 Quantum, Einstein, Bohr, and the Great Debate About the Nature of Reality, Njit Kumar

#BookSky
💙📚
#Books
#BookChallenge
Black book cover, photos of Neils Bohr on the left side and Einstein on the right, both in thought, author’s name, Njit Kumar, at the top of the page in white letters, book title “Quantum” in large yellow Upper case letters, followed by subtitle “Einsten, Bohr, and the Great Debate About the Nature of Reality” in white letters
November 30, 2024 at 12:57 AM
davemammen.bsky.social
Choose 20 books that have stayed with you or influenced you. One book per day for 20 days, in no particular order. No explanations, no reviews, just covers.
#12 Code Talker, Chester Nez

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#Books
#BookChallenge
Picture is a book cover which consists of a montage of scenes from World War II, a squadron of airplanes, a soldier firing a rifle, men on a tank, and soldiers going ashore from a landing craft. In the center is the Title - Code Talker, followed by the subtitle, which explains this is the only autobiography of a Code Talker. Also includes a quote from a colonel that the book is history at its best.
November 28, 2024 at 4:44 PM
davemammen.bsky.social
Choose 20 books that have stayed with you or influenced you. One book per day for 20 days, in no particular order. No explanations, no reviews, just covers.
#11 The Soul of an Octopus, Sy Montgomery

#BookSky
💙📚
#Books
#BookChallenge
Book Cover, white background with cloudy patches of blue around the edges. purplish Octopus in the center. Book title The Soul of an Octopus is aligned in a vertically oriented convex semicircle on yellow lettering above the Octopus, with subtitle A Surprising Exploration into the Wonder of Consciousness below it jn blue letters. Below the octopus is the author’s name, Sy Montgomery, in yellow letters.
November 27, 2024 at 9:36 PM
davemammen.bsky.social
Choose 20 books that have stayed with you or influenced you. One book per day for 20 days, in no particular order. No explanations, no reviews, just covers.
#10. Wizard, The Life and Times of Nikola Tesla, Marc Seifer

#BookSky
💙📚
#Books
#BookChallenge
Light gray book cover, author’s name Marc Seifer across the top, book title in larger Wizard in gold lettering on a 45 degree angle, old tintype style portrait of Tesla with the phrase “Life and Times of” followed by Nikola Tesla in gold letters about half the size as those spelling Wizard.
November 26, 2024 at 10:40 PM
davemammen.bsky.social
There’s real trouble on the horizon, but the sunsets are still beautiful.
November 26, 2024 at 2:31 AM
davemammen.bsky.social
Choose 20 books that have stayed with you or influenced you. One book per day for 20 days, in no particular order. No explanations, no reviews, just covers.
#9 Children of Ash and Elm, A History of the Vikings, Neil Price

#BookSky
💙📚
#Books
#BookChallenge
Book Cover, front view - looking up at the bow of a Viking longboat. Book title is Children of Ash and Elm, subtitled A History of the Vikings
November 25, 2024 at 4:52 PM
davemammen.bsky.social
Timing is everything when it comes to capturing that classic bird photo.
November 24, 2024 at 10:56 PM
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Something to ponder as you prepare to gather with relatives for Thanksgiving.
November 24, 2024 at 10:33 PM