The Invisibility Thread

[officerripley]

Also being a not-young woman "works".

 

[OldFeller]

I decided not to post here when it became clear that I couldn't really see myself in an invisibility thread.

 

[GoneFishin]

Invisible moth

 

[Meanderer]

rent this invisible house to disappear into california's mojave desert

 

[Meanderer]

I decided not to post here when it became clear that I couldn't really see myself in an invisibility thread.

Who remembers this Old Feller.......?

 

[Meanderer]

 

[Meanderer]

rent this invisible house to disappear into california's mojave desert

Another view!

 

[Meanderer]

 

[Meanderer]

AI Overview

"Invisibility" on Mars refers to phenomena unseen by the naked eye but detected by instruments, including "dirty frost" camouflaged in visible light, UV aurora-type nightglow, and thousands of dust-free convective vortices.

NASA’s MAVEN mission also identified "invisible" atmospheric sputtering stripping the planet, while infrared cameras have uncovered hidden subsurface water ice.


Key invisible or hidden features on Mars include:

"Dirty Frost" & Avalanches: Infrared cameras revealed water ice or "dirty frost" that blends in with the surface, which may trigger dark dust avalanches as it vaporizes.

Invisible Dust Devils: NASA's InSight lander detected thousands of convective vortices, but many did not pick up dust, making them invisible to regular cameras.

UV Auroras: Mars has no global magnetic field, but local magnetic crustal pockets create "invisible" ultraviolet auroras caused by solar wind interaction, mapped by MAVEN.

Atmospheric Sputtering: NASA’s MAVEN mission directly observed an "invisible force"—atmospheric sputtering—that is stripping away the Martian atmosphere and has contributed to its loss of water.
Subsurface Water Ice: Infrared (IR) cameras are used to map surface composition and detect vital in-situ resources like water ice that are otherwise buried beneath the surface.

Invisible Light Imagery: Projects like "Invisible Mars" use data from spectrometers and other instruments to show the planet in wavelengths beyond human vision, revealing geological features.

Note: There are also, rarely, situations where the entire planet becomes effectively invisible to cameras during extreme dust storms that cover the whole planet, causing it to look like a featureless ball.

 

[Meanderer]

The 99 Percent Invisible City: A Field Guide to the Hidden World of Everyday Design​

by Roman Mars, Kurt Kohlstedt

“Here is a field guide, a boon, a bible, for the urban curious. Your city’s secret anatomy laid bare—a hundred things you look at but don’t see, see but don’t know. Each entry is a compact, surprising story, a thought piece, an invitation to marvel. Together, they are almost transformative. To know why things are as they are adds a satisfying richness to daily existence. This book is terrific, just terrific.”
—Mary Roach, New York Times bestselling author of Stiff, Grunt, and Gulp

“The 99% Invisible City brings into view the fascinating but often unnoticed worlds we walk and drive through every day, and to read it is to feel newly alive and aware of your place in the world. This book made me laugh, and it made me cry, and it reminded me to always read the plaque."
—John Green, New York Times bestselling author of The Fault in Our Stars and Turtles All The Way Down

 

[Meanderer]

Key Invisible Exercise Examples:

Glute Squeezes: Tighten your glutes while sitting or standing in line, holding for 10–20 seconds.

Stomach Vacuums: Tighten your abdominal muscles, pulling your navel toward your spine, and hold while breathing normally.

Calf Raises: Raise your heels off the ground while standing at a counter or desk to strengthen lower legs.

Isometric Core Brace: Tighten your entire core, as if preparing for a punch, while walking or sitting.

Desk/Chair Push-offs: Place hands on armrests and lift your weight off the seat, holding for several seconds to engage arms and core.

Shoulder Blade Squeezes: Pinch shoulder blades together to reverse slouching.
Leg Extensions: While seated, extend one or both legs straight out under your desk and hold.

Discreet Daily Activities (NEAT)

Walking meetings or walking to work.

Cleaning, gardening, or washing a car.

Grocery Bicep Curls: Using grocery bags as light weights while unloading.

Using Stairs: Choosing stairs over elevators.

Facial and Neck "Invisible" Moves

Ear Lift: Relax the face and jaw, then smile while concentrating on lifting the ears.

Neck Resistance: Place a hand against the head and gently press, resisting with neck muscles.

Jaw Relaxation: Maintain "lips together, teeth apart" to avoid overworking jaw muscles.

"These movements are particularly effective for improving posture, balance, and maintaining strength throughout the day, even during desk work."

 

[Meanderer]

 

[Meanderer]

 

[Meanderer]

Invisible Flaws in Airplanes​

 

[Meanderer]

 

[Meanderer]

The Image of the Invisible God​

 

[Meanderer]

Pigs in Space: The Science Behind Invisibility Pills​

 

[Mike]

I thought that White or Grey hair that
comes with age made you invisible!

This afternoon, I was waiting for a tram
and leaning against a wall, when a young
woman with her daughter and son, I think,
one each side were walking fast towards
me, the teenage son, walked into me, he
had made no effort to avoid me and the
collision, forced him to turn around until
his back was to the direction, that he had
been walking, nothing was said, no apology
or accusation, it was as if they didn't understand!

My bag of shopping must have bruised
him.

Mike.

 

[Meanderer]

I thought that White or Grey hair that
comes with age made you invisible!

This afternoon, I was waiting for a tram
and leaning against a wall, when a young
woman with her daughter and son, I think,
one each side were walking fast towards
me, the teenage son, walked into me, he
had made no effort to avoid me and the
collision, forced him to turn around until
his back was to the direction, that he had
been walking, nothing was said, no apology
or accusation, it was as if they didn't understand!

My bag of shopping must have bruised
him.

Mike.

Mike, you are thinking of "Invisible-agers", a new name for Seniors.

Feeling Invisible as We Age: 5 Ways It Shows Up​

 

[Meanderer]

The Invisible Process of Aging
AI:
"The invisible process of aging involves a gradual, molecular decline beginning in our mid-20s, long before visible signs appear. It is characterized by DNA damage, telomere shortening, mitochondrial dysfunction, and the accumulation of senescent "zombie cells" that cause chronic inflammation (inflammaging). This internal recalibration affects metabolic, immune, and cardiovascular health."

Key Aspects of the Invisible Aging Process:

• Telomere Shortening: The protective tips of chromosomes shorten with each cell division, acting as a "hidden clock" that limits cellular lifespan.
• Senescent Cells: Damaged cells that stop dividing but do not die accumulate in tissues, releasing molecules that harm surrounding healthy cells and accelerate deterioration.
• ER-phagy (Endoplasmic Reticulum Remodeling): Cells actively, but uncontrollably, remodel their internal structures, which can trigger age-related diseases.
• Epigenetic Changes: DNA methylation and other modifications alter gene expression without changing the DNA sequence, acting as a silent indicator of aging.
• Molecular Surges: Research indicates dramatic shifts in molecules related to aging, particularly around the mid-40s and again in the early 60s, affecting metabolism and immune regulation.
• The "Deleteriome": A term for the total accumulation of molecular damage that becomes too substantial for the body to repair.

"These processes lead to reduced collagen production and slowed cell turnover before physical signs like wrinkles are seen. While inevitable, this process can be influenced by environmental and lifestyle factors, such as UV exposure, smoking, and nutrition."