RedRyderOneEye

i have worked at NASA for about 3 years now...

[durvesh @BLackgold_5]

Diving from a submarine. The most weaponized and expensive high dive platform in the world

[ENS Haber @haberENS]

İsveç’te arkeologlar, Viking mezarlarında bir lahit içerisinde “Allah” yazılı bir yüzük buldu.

[Aakash Gupta @aakashgupta]

Your brain has a circuit that doesn't know you live in a city. Its only job is to monitor whether birds are still singing. Right now, in this room, it is on.

The circuit predates primates. Mammals have been using ambient soundscape continuity as a predator-detection system for roughly 200 million years. Birds stop singing when something larger moves through their territory. For most of mammalian history, a forest full of song meant no large predator was nearby, and the cessation of sound was the warning. Your nervous system never updated this software.

The Max Planck Institute tested the inverse in 2022 with 295 participants. Six minutes of birdsong dropped anxiety with a medium effect size. Six minutes of traffic noise raised depression with the same. The effect worked on subjects who lived in dense urban environments and had no regular contact with nature. The brain still ran the check.

Birdsong sits in the 1,000 to 8,000 Hz range. Your brainstem reads continuous patterns in that band as a signal that nothing dangerous is currently moving through the environment. EEG data shows birdsong at 45 to 50 decibels boosts alpha wave activity by 14.1% relative to silence. Alpha is the brainwave signature of relaxed alertness. Push the same birdsong above 60 decibels and the response flips. Stress markers rise 29%. The circuit only trusts the signal at the volume of quiet conversation, which is exactly the volume birds sing at from a typical distance.

Three things happen simultaneously when the brain registers ambient safety. The amygdala downregulates. The parasympathetic nervous system takes over from the sympathetic. Heart rate variability rises, cortisol drops. The posterior cingulate cortex, which sits at the center of the rumination circuit, quiets down. King's College London tracked this through a smartphone study with over 1,200 participants and found the mood lift lasted hours after the sound stopped. People diagnosed with depression got the same response as healthy controls.

Most of what gets labeled mental fatigue is hypervigilance running in the background. Birdsong tells the circuit it can stand down, and the brain reallocates the freed compute everywhere else.

A quiet park feels different from a quiet office because the parks have sentinels.

[Massimo @Rainmaker1973]

Although mirrors have been around for thousands of years, a German chemist made a breakthrough in 1835 that would make the modern manufacture of them possible.

Add some sugar to ammoniated silver nitrate, pour it onto glass: you’ve got yourself a mirror.

[RedRyderOneEye @logonfrench]

@armslist @yamanakanobody If you consider a jeep a “car” then yes I have a “car”

[RedRyderOneEye @logonfrench]

@PhillyMascot happy birthday big guy! You da bomb!

[RedRyderOneEye @logonfrench]

@GreenFuzzyGuy happy birthday big guy! Thanks for creating so much fun to the game!

[RedRyderOneEye @logonfrench]

@deseretistan Studying for my tech test now!

[RedRyderOneEye @logonfrench]

@beyoumf Wiping with wet wipes

[The Frog Mage @the_frog_mage]

Goose

[RedRyderOneEye @logonfrench]

It’s weird to think we used to be up in arms about global warming, and now we’re not up in arms about pdf files

[Dwight’s World @Creed_Thoughts2]

This new dinosaur documentary narrated by Morgan Freeman looks incredible!!

[RedRyderOneEye @logonfrench]

I need to watch “a river runs through it” again asap

[El Profeta @EiProfeta]

La serie Harry Potter de HBO tendrá 7 temporadas, 1 por cada libro. Durará más de 10 años. Será 100% fiel a la obra literaria y se convertirá en la mayor inversión de Warner de la historia. Se estrenará a principios del año que viene.

[RedRyderOneEye @logonfrench]

When will my tl not have ice posts or winter storm posts?

[RedRyderOneEye @logonfrench]

@cryptodaaddy @ItsTheEnforcer Look into “Meshtastic”

[capybara @thecapytoken]

hi

[RedRyderOneEye @logonfrench]

No matter how hard I try, I cannot seem to understand the absurdity of human decision making.