Ghost jelly

| K | she/they | 1900s Eldritch creature | I like some stuff a whole lot.

[thedouble]

“Freedom always has a price.”

― Persepolis (2007) dir. Marjane Satrapi, Vincent Paronnaud

[doncastersdarlingkittengresley]

I saw she just passed. This was an excellent movie.

[chewing-on-lead]

[viktor-sbor]

A 50-kilogram anvil floats perfectly on the surface of mercury, because the density of the steel from which it is made is almost half the density of mercury.

[e-102]

damn that shit is light lmfao

[telltaletypist]

[vienna1954]

Fun fact! Many lighthouses with especially large fresnel lenses would have huge fucking tubs of liquid mercury in the lantern room because it’s a super easy way to make these giant lenses rotate quickly!

Shockingly, however, spending most of your time in close proximity to 500 pounds of liquid mercury is Not Great For One’s Health and tons of lighthouse keepers started to go crazy from the whole. Mercury poisoning thing. Hence why there are a lot of “haunted” lighthouses or wickies that lose it and maybe do a bit of manslaughter.

Anyway, people saw a bunch of lighthouse keepers go crazy and get sick and got empirical evidence that it was in fact related to the 500 pound mercury bath they have to visit every day and then they decided nah it’s fine actually. So we’ve kept the liquid mercury thing and I think that’s beautiful

[ben-the-hyena]

I love how it is so dense it does not "wet" the anvil, the drops all run and leave with nothing behind them unlike water, oil, sauce... it's super satisfying it's like in cartoons

[macleod]

In a letter written on April 19, 1825, Augustin Fresnel proposed the use of mercury to reduce the friction in revolving lenses. His statement follows: “I propose to float our rotating devices, of the first order, in a bath of mercury, instead of placing them on rollers. This project won't present many difficulties; nevertheless, as I have not put it into execution, I won't require you to adopt it for your first lighthouse.”

Fresnel’s plan for mercury flotation was not put into practice until 1890 when Monsieur Leon Bourdelles, Chief Engineer of the French Lighthouse Service, designed and built a workable mercury flotation system. The mercury bath allowed the lens to operate in an almost frictionless environment and, additionally, allowed the speed of rotation to be dramatically increased.

Lens Rotation by Thomas Tag | United States Lighthouse Society

[sashaforthewin]

Ah to be a sailor in 1890 who has to turn to his fellow men and ask "is it just me or are the lighthouses flashing faster?"

[asteroidtroglodyte]

They had been slowly getting faster for decades.

It mattered for optics reasons.

Under less-than-ideal conditions, you can only see the beam when it’s pointed more or less directly at you. In-between beams you would not be able to see anything. One solution to this was to create multiple beams, and the lenses Mr Fresnel designed usually created 8 beams. But, even still, duration between flashes could be as long as one minute in the old mechanical roller systems.

The nearly frictionless operation of the Mercury suspension system allowed the lenses (large pieces of precisely ground glass weighing several hundred pounds in some cases) to rotate fast enough that they could be redesigned to create fewer (usually 3) beams. Fewer beams from a similar light source will be proportionally brighter, and the gains in speed were sufficient that duration between flashes could still be reduced to as little as 10 seconds.

This was a big upgrade. It didn’t just make the lighthouse signal faster, it allowed them to completely overhaul the lens and derive more visibility from a light source.

What’s a little Madness, in the face of Progress?

[myth-myth-yeth]

mods are asleep, post the fresnel lens

[cass-without-the-andra]

The mercury baths are slowly being replaced by a new system, this video about it is super interesting and explains it way better than I can!

[catchymemes]

everyone: happy pride month 🌈

my brain at 12:00 am on june 1st:

[eightfifteen]

Crazy how many people want characters in fiction to speak and act like they’ve had 20 hours of intensive therapy. Could NOT be me I want these bitches fucked up insane

[plutojester]

[doingthewritethings]

my friend briar and i lovingly call this one ‘therapy speak joker’ and it almost caused her to drop biological samples one time

[dizzyghoast]

i think the joker should start talking like this for real. no other character should do this only the joker. i want batman to have to deal with this

[lucifer-is-a-bag-of-dicks]

now I need a fic where Batman is stuck hanging upside down in a trap in the Joker's lair while Joker sits across from him, legs primly crossed, glasses sitting low on his nose, notepad in hand, and attempts to literally armchair diagnose him with several different disorders

he's eventually saved by Harley who's grumbling "I ain't doin' this for you, if I hear him use 'Cognitive Behavioural Therapy' incorrectly one more fuckin' time I'm takin' a mallet to his head"

cue hijinks as Batman subtly attempts to stay captured just to see that

[tinybed]

[comealongphil]

dawn dimmadome? wife of doug dimmadome, owner of the dimmsdale dimmadome?

[punkrorschach]

actually she took the dimmadome in the dimmadivorce

[laterkiss]

happy pride month 🏳️‍🌈

[workingclasscinema]

fucking T I R E D of waking up every fucking day to new news about "first world countries" trying to destroy the natural spaces in mine

[danversxwasabi]

We need to make the cause visible 🧜‍♂️

Mexico is not a place for foreigners to come and make money for their own benefit, nor for its own government to destroy ecosystems. If you could help by signing these petitions, great, but if you don't feel like going in and signing, you can simply share the post. Signatures might not have legal consequences, but they can show that many people disagree with the destruction of natural areas (some of which are even protected areas). 🌵🍃

Any small action is more than enough. 🌻

▪︎ Saguaro 🐋 🐳 🐋

https://c.org/QZgzDtGGGj

https://ballenasogas.org

https://secure.avaaz.org/community_petitions/es/claudia_sheinbaum_y_joe_biden_las_ballenas_de_mexico_estan_en_grave_peligro/

▪︎ Playa las Cocinas, Nayarit. 🐢🐢

https://c.org/Z5QQXtpsVH

▪︎ Mahahual, QRoo🪸🐠🪸🐡🪸🐟

https://c.org/hykkyc4yGt

▪︎ Sierra de La Laguna, Baja California Sur 🌄🌄🌄

https://c.org/nXzNdxNrS2

▪︎ Loreto, Baja California Sur ⛵🏖️

https://c.org/5VNRv7Cqj6

▪︎ Oztuyehualco, Tepoztlán 🦇🦇🦇

https://c.org/Gnc5FQrYkd

▪︎ Piedras pintas, Sonora🏜️🏜️🏜️

https://c.org/Gy5PLwMM7q

▪︎ Canales de Xochimilco 🦎🦎

https://c.org/dxs7BYnJSm

▪︎ Saqueo de tortugas 🐢

https://c.org/LBJ7NZDXLY

▪︎ Derrame de petróleo en el golfo 🛢️

https://c.org/QLpZnTJfJX

▪︎ Ixil, Yucatán 🌄🌄🌄

https://c.org/KJfM5D8syh

▪︎ Golfo de California🐋

https://c.org/KkXY6CLXtg

▪︎ Bahía de Ohuira, Topolobampo, Sinaloa 🌅🏝️

https://c.org/vzjKph5wcb

▪︎ San Pancho, Nayarit 🏖️

https://c.org/VKjpdCwwrZ

▪︎ Cozume, Tepoztlán, Royal Caribbean privatizando playas 🏝️

https://c.org/VsVfz78VpV

▪︎ Tepoztlán, uso de suelo 🛤️

https://c.org/ky54gMRVBJ

▪︎ Zempoala, Hidalgo 🪴

https://www.change.org/salvemos_el_maguey

▪︎ La Gallega, Veracruz 🌿

https://c.org/2946bpKZN2

@chase-me-round @residentsuperhero @pinkynore22 @vigilantexreader @shadowskribe @bunniesofsteel @evielovve @lil-rigatoni (I would greatly appreciate it if you could help me share it.)

[fuckyeahmexico]

¡Manifestación en CDMX para exigir que el gobierno alemán deje de financiar la planta de amoníaco GPO!

Mañana jueves 4 de junio haremos llegar nuestro mensaje al ministro de Relaciones Exteriores de Alemania durante su visita a México.

📍 Altar y vigilia para salvar la Bahía de Ohuira 📅 Jueves 4 de junio, 20 horas.

Lleva una ilustración, una foto, una veladora o un objeto para el altar.

¡La bahía de Ohuira de Topolobampo, Sinaloa nos necesita!

[kaylmao]

[beemovieerotica]

idk if i told the full story on here but i signed up for a research study where they were testing a new opioid, and it was supposed to be up to 5 injections increasing the dose to see what people could tolerate

i got the first dose and almost immediately fainted. they had to call in a whole medical team and it was a huge fucking deal

i was kicked out of the study and got a phone call later where they were supposed to tell me what the drug was, so i could avoid it in the future. they told me it was saline water. a placebo. i fainted from the placebo effect.

anyway, it's been a few months and i just got an email from the same department asking me to be a research participant in a new study: testing the effects of open-label placebo.

open label placebo is when the subjects and the researchers all know it's a placebo. they're testing the power of my mind. my power to imagine anything.

i like to think that they chose me for this specifically based on their past experience with me. "get the guy who fainted like a little bitch boy from saline water." anyway i just submitted all my info and i'm looking forward to getting started.

[cipheramnesia]

placebos georg is fucking with the control group again

[the-halls-of-mint-eye]

Look at this absolute cutie

I wanna squish him

[yayacyan]

Poor thing, she's dying from cringe 😔

I can't leave comments because of some network error

[profeminist]

This is from the 2024 doc "Elizabeth Taylor: The Lost Tapes" which came in out '24 and is currently streaming on HBO Max plus available on other channels.

[corrucyst]

dude, this is really scary, and liminal as well. It's like the bathrooms

[rylandsgrace]

I Like To Watch (2018 - ) I Perfect Match Season 2