#infrared (IR) light

[istandonsnowpiles]

10 69N

[thingsdavidlikes]

Quietly by nlwirth

[orgasmictomato]

Infrared DE 15M crop by Jim Via Flickr: This is a dimensional entity captured by way of IR laser illumination in the night sky at 2 - 3km altitude - aunit traversing the laser beam (unseen by human vision) captured by infrared video cameras with a estimated size of greater than 15 meters across.. It is colour framed for easier viewing no altering of context, size etc is changed. The laser light is left in the shot. I don't usually comment as what is seen here, leaving it to you as a individual to see for yourselves, but as things seem to be slow moving and many may not be aware or able to visualise them.... I see a "sled" with at least 5 occupants of different stature and appearance. Quite often this is the case, 5 different occupants on a "vehicle"

[rbrtsw2lee]

https://www.futureelectronics.com/p/semiconductors--optoelectronics--infrared-emitters-detectors/hdn1102w-tr-stanley-electric-9066162

Infrared emitters manufacturers, Ceramic infrared, emitter circuit, infrared light,

3 x 1.5 mm 60° 870 nm 20 mA Surface Mount Infrared Emitting Diode

[csit2tyre]

USB infrared transceiver, home security motion sensor, IR emitter cable

3 x 1.5 mm 60° 870 nm 20 mA Surface Mount Infrared Emitting Diode

[cinakira]

true IR sensor switch application from Canada customers,in the video, it is our dual function IR sensor switch in white housing .,comparing with our other sensor switches ,this one has 2 IR function ,hand wave sensor and door trigger sensor ,also it will be gradually on and off ,The light is not dazzling。

Thank you to the customer for specially shooting the video for us. Thank you very much.

ir sensor switch#12v ir sensor switch#ir door sensor switch

[antgione]

Boston Contemporary Pool Inspiration for a large contemporary backyard concrete paver and rectangular lap hot tub remodel

[apod]

2024 February 4

The Cone Nebula from Hubble Image Credit: Hubble Legacy Archive, NASA, ESA - Processing & Licence: Judy Schmidt

Explanation: Stars are forming in the gigantic dust pillar called the Cone Nebula. Cones, pillars, and majestic flowing shapes abound in stellar nurseries where natal clouds of gas and dust are buffeted by energetic winds from newborn stars. The Cone Nebula, a well-known example, lies within the bright galactic star-forming region NGC 2264. The Cone was captured in unprecedented detail in this close-up composite of several observations from the Earth-orbiting Hubble Space Telescope. While the Cone Nebula, about 2,500 light-years away in Monoceros, is around 7 light-years long, the region pictured here surrounding the cone's blunted head is a mere 2.5 light-years across. In our neck of the galaxy that distance is just over half way from our Sun to its nearest stellar neighbors in the Alpha Centauri star system. The massive star NGC 2264 IRS, seen by Hubble's infrared camera in 1997, is the likely source of the wind sculpting the Cone Nebula and lies off the top of the image. The Cone Nebula's reddish veil is produced by dust and glowing hydrogen gas.

∞ Source: apod.nasa.gov/apod/ap240204.html

[jayrockin]

I was reading back some posts and checking out your website for RTTS and was reminded that bug ferrets can see in infrared. That made me curious if you have any idea of how being able to see infrared would look? Especially in regards to things that are already colored something in the visible light spectrum like cyan and also emitting heat and thus infrared (if I’m understanding how infrared works correctly)? I’ve been trying to conceptualize it my self and it’s making my brain hurt a little bit 😅

Basically they can see heat gradients. I originally had them detecting infrared radiation specifically but then learned that was... improbable, for physics reasons (IR wavelengths are terribly low energy, meaning any photoreceptor molecule intended to detect it would get a lot of false positives from body heat and other molecular wobbling, also the vast majority of biological compounds are opaque to IR). But seeing heat gradients is essentially the same thing, because things that emit heat usually emit IR. Bug ferrets have the same basic mechanism as the heat pits on snakes, although bug ferret heat pit eyes are slightly more sophisticated at focusing and directing their vision. I have scribbles of them but no proper art yet. Extremely hot or humid conditions also essentially blind their heat eyes, because they cannot pant effectively enough to cool the membrane and get an accurate image of the local heat gradients.

As for what heat vision "looks" like, it would essentially be the same as black and white vision, but the "hot white" is categorized as a separate "color" in the brain; different than red, green, and their combinations (the colors of the visible light that bug ferrets can see with their larger eyes). Something could be simultaneously "cold black" and white, like ice; or "hot white" and black, like heated cast iron. Maybe a way to think about it from a human perspective is the visual experience of chimerical colors.

[wonders-of-the-cosmos]

Webb Unveils Dark Side

An international team of astronomers using NASA’s James Webb Space Telescope has obtained an in-depth inventory of the deepest, coldest ices measured to date in a molecular cloud. In addition to simple ices like water, the team was able to identify frozen forms of a wide range of molecules, from carbonyl sulfide, ammonia, and methane, to the simplest complex organic molecule, methanol. This is the most comprehensive census to date of the icy ingredients available to make future generations of stars and planets, before they are heated during the formation of young stars.

 This image from the telescope’s Near-Infrared Camera (NIRCam) features the central region of the Chamaeleon I dark molecular cloud, which resides 630 light-years away. The cold, wispy cloud material (blue, center) is illuminated in the infrared by the glow of the young, outflowing protostar Ced 110 IRS 4 (orange, upper). The light from numerous background stars, seen as orange dots behind the cloud, can be used to detect ices in the cloud, which absorb the starlight passing through them. 

 Image credit: NASA, ESA, CSA, and M. Zamani

[materialsscienceandengineering]

Chalk-based coating creates a cooling fabric

In the scorching heat of summer, anyone who spends time outside—athletes, landscapers, kids at the park or beachgoers—could benefit from a cooling fabric. While there are some textiles that reflect the sun's rays or transfer heat away from the body, current options require boutique fibers or complex manufacturing processes. But now, researchers report a durable chalk-based coating that cools the air underneath treated fabric by up to 8 degrees Fahrenheit. Evan D. Patamia, a graduate student at the University of Massachusetts Amherst, will present their team's results at the fall meeting of the American Chemical Society (ACS). ACS Fall 2024 is a hybrid meeting being held virtually and in person from Aug. 18–22; it features about 10,000 presentations on a range of science topics. "If you walk out into the sunlight, you will get increasingly hot because your body and clothing are absorbing ultraviolet (UV) and near-infrared (near-IR) light from the sun," says Trisha L. Andrew, a chemist and materials scientist working with Patamia. "And as long as you're alive, your body is generating heat, which can be thought of as light, too."

Read more.

[is-the-snake-video-cute]

you mentioned in a previous ask that snakes use heat pits to sense infrared light. so are the heat pits like, modified retinas with IR sensitive pigments in them? or are they actually just particularly sensitive to heat?

They're not visual organs at all, they detect infrared signatures but not infrared light. They just pick up on thermal radiation signatures.

Here's a diagram of how heat pits are set up - they're openings set into the snake's lips or cheeks, and inside is a membrane that sends information on infrared signatures to the snake's brain when it comes into contact with the air.

Pit organs are fascinating, and the details of how exactly they work are unfortunately still not super well understood. Even though they're not visual organs, the information might travel to the snake's brain in a way that gives them a "snapshot" image of nearby infrared signatures!

They're weird, unique organs! I think part of what makes them so interesting is that humans just have nothing like them, so it can be tricky to conceptualize how they help snakes interpret the world.

[ocean-sunfish-hater]

A shallowish dive into some pits.

The pit organ of a viper is what is responsible for its ability to detect body heat via infrared (IR) light. Whilst IR detection has evolved multiple times in snakes, the pit organ is far and away the most sensitive and specialised of the bunch. The snake is able to detect thermal differences of just 0.003C, which is wild, because some of the best available cryogenic IR sensors that we've made are apparently sensitive to differences of around 0.01C (although I don't know much about thermal imaging so please someone correct me if I'm wrong).

The receptor that is found in the pit organ is known as TRPA1 (it stands for something technical and boring, cellular biology has never been my jam), and it's expressed in incredibly high amounts in the Trigeminal Ganglion of snakes, which is the main nerve that connects to the face.

ID: A close up image of the face of a rattlesnake. Its scales are a mixture of brown and yellow tones. It looks cool.

Some people theorise that the pit organ didn't initially evolve for hunting, but rather predator detection and thermoregulation. Studies of pit vipers and true vipers have found that pit vipers were much better at finding spots to warm up in than their non-pitty relatives. So the pit organ might have evolved for a more general use rather than the predatory one we first thought.

But you know what's interesting? In mammals, TRPA1 is actually cold receptor, as well as one that's responsible for itching. What's more, it's commonly known as the wasabi receptor, because that's what the chemicals in wasabi bind to to give us that characteristic kick. I guess its link to our trigeminal nerve is why it gets us when it's in our face but not really anywhere else, unlike the spice you find in chillis.

ID: An image of an Australian Black Rock Scorpion sat upon some light coloured wood. The scorpion is dark brown in colour with lighter coloured legs. Both its sting and claws are somewhat raised.

ALSO, I just found this out as I was doing a bit more research, but since TRPA1 is also a receptor involved in sensing pain, it's a target for a toxin called the Wasabi Toxin, produced by the Australian Black Rock Scorpion. The toxin forces the channel open, making the affected area hypersensitive to heat and touch, but doesn't make it swell up.

Anyway, this was a bit more of a ramble than my usual posts, I just thought it was interesting how this one receptor is linked to so many different things, and how it's used in such a variety of ways.

[pearls-and-vignettes]

Spaceway 70 - Pablo

The Marlin heaves out of the darkened dock, whining with unwarmed engines. A simple objective:

- Assess damages, neutralize threats.

I've done it a million times before. Come to think of it,—

Red lights blare outside and the station's distress call is picked up by the radio. I fly around the cylindrical body—perform a systematic scan. How would the incident report be written?

- Upper hull damaged in a hit-and-run bombing; station status unknown.

- Soldier casualties: ...

Soldiers. They never chose to lay down their lives—to fight for an uncaring ruler—not them.

- Assailant(s): Unknown vessel, presumed solitary. Heat signature detected, actively pursuing.

Ambiguous language. Open to litigation. Sarge would be sad.

- Disregard previous entry. Chasing assailant via engine heat; infrared reading with 0.87 certainty. Monitoring radar.

- Radar confirms a small ship. Moving at 75% of own velocity. Distance 2000 mi.

-

-

- 1500.

-

-

- Approaching civilian zone

-

-

- 1000.

-

-

- 500.

-

- 250.

-

- 175.

-

- 100.

- 50.

- 25.

- Contact.

They pull up and to the left, attempting to get above and behind me, though it's too little, too late.

- Assailant neutralized with ballistics. Assumed to have hit engine.

- Upon visual examination, there appears to have been no pilot. Control is either automated or remote. No outstanding radio frequency detected.

Darn...

Out and ahead of me are markers indicating a commercial route. Safe for traders.

A transponder on one of the markers pings my ship. Something about remaining in place, a unit arriving soon. I don't make it a good hundred miles before a squad comes in with weapons hot.

I dodge a few shots and they graze me with a laser. I'm not about to make war with a whole task force.

The Marlin is a ship of esoteric construction. It has a hull constructed for incredibly heavy salvos—granted you have enough sealant [1] aboard. It comes with a cloak [2], more a scrambler than anything, which uses up insane amounts of power, and an EM pulse [3] which likewise drains my batteries. It's a perfect ship for an early retirement [4], as long as my encounters are few and far between.

With the push of a fader I turn my radio into a tool of war, creating a streak of white along their IR imager and making their radar unusable. Similarly, with a press of a button the magnetron pulses on, disabling their steering and warming up their cabins.

- Three combatants neutralized; nonlethal means

Two more pull down and in front, shooting and missing. I pull up and turn around, hoping to hit them with more microwaves.

< -#- VACDETEC V1.4 -#- >

< ALARM >

<HULL BREACH | d.0s>

<HULL BREACH | d.1s>

<HULL BREACH | d.2s>

I begin to sweat as the laser weapon dissipates as heat into my cockpit.

< HULL SEALED >

< SEALANT AT 25% >

I need to leave.

I reach up to grab a solar compass [5] and scribble my heading onto the cockpit glass.

- Taking extratactical measures: Magnetron shielding angle set to 175.8 degrees

< ## Are you sure? Use of EMP with current settings may cause systems to misbehave. ## >

[ YES ]

Navigation goes dark as two more ships behind me lose steering. I launch a wide-range RF jammer [6] and a hot net [7]. I cut my engines and seal the exhaust [8].

This is a special dance they taught us in Academy; " . . . each ship has its own precise limits, though with them come potential," they had us memorize old literature, "that is why you must know yours more intimately than the body of your lover . . . " I positioned one hand over the exhaust control and another over the ignition. Two seconds, three seconds, and

< -#- SHELL -#- >

< ALARM >

<ENGINE OVERHEAT>

The ship rattles as I rocket dead ahead in the direction of home. Another alarm blares on my monitor,

<CHECK ENGINE>

A few milliseconds too late. I hear a faint whisper—a hiss—join the chorus of the Marlin's song. I'm sorry. I'll fix it soon. It'll be ok.

" . . . for each time you take up the helm, you partake in a romance far more real than any other, for no other can see the terror

of a deprivation so terrible, or a death so swift."

[1]: A chemical formulation which undergoes an extremely exothermic reaction when exposed to the vacuum of space. Akin to tire sealant from when vulcanized rubber was used for land vehicles.

[2]: A system consisting of telescoping antennae and an ultra-high amplitude RF generator. Hides a ship's exact location within a much broader, irregular radio signature.

[3]: A high-powered magnetron capable of producing strong microwaves with multiple miles of range. Temporarily scrambles navigation systems, causing affected ships to veer off-course.

[4]: I can't keep doing this

[5]: An indicator which points in the direction of the closest star, when properly calibrated. Detects the unique products of nuclear fusion.

[6]: Akin to the cloak, a disposable projectile which blanks out vast swathes of a ship's radio imager.

[7]: A large, mechanized retroreflector which concentrates heat from all directions, and shoots it back at the viewer, making infrared imaging of a ship nearly impossible.

[8]: In reference to a mechanism which seals the exhaust vents of the Marlin. This turns the entirety of the engine tract into a bomb. A stupid idea if held closed for more than a few seconds.

[mindblowingscience]

The presence of an infrared aurora on the cold, outer planet of Uranus has been confirmed for the first time by University of Leicester astronomers. The discovery could shed light on the mysteries behind the magnetic fields of the planets of our solar system, and even on whether distant worlds might support life. The team of scientists, supported by the Science and Technology Facilities Council (STFC), have obtained the first measurements of the infrared (IR) aurora at Uranus since investigations began in 1992. While the ultraviolet (UV) aurorae of Uranus has been observed since 1986, no confirmation of the IR aurora had been observed until now. The scientists' conclusions have been published in the journal Nature Astronomy.

Continue Reading.

[redpusea]

Reconceptualising the colours in Stranger Things

Currently (I could have my mind changed in the future) my understanding is that Jane/Eleven, Will, and Mike at their core are generally associated with 1 colour each Red, Yellow, and Blue respectively

Following is an excerpt from chat GPT;

“Electromagnetic Spectrum

The electromagnetic spectrum encompasses all types of electromagnetic radiation, arranged according to their frequency or wavelength. The main categories include:

Radio Waves:

Wavelength: > 1 mm

Frequency: < 300 GHz

Uses: Communication (radio, television), astronomy, MRI

Microwaves:

Wavelength: 1 mm to 1 cm

Frequency: 300 MHz to 300 GHz

Uses: Microwave ovens, radar, satellite communication

Infrared (IR):

Wavelength: 700 nm to 1 mm

Frequency: 300 GHz to 430 THz

Uses: Remote controls, thermal imaging, night vision

Visible Light:

Wavelength: 400 nm to 700 nm

Frequency: 430 THz to 770 THz

Colors: Red (longest wavelength) to violet (shortest wavelength)

Ultraviolet Light:

Wavelength: 10 nm to 400 nm

Frequency: 750 THz to 30 PHz

Uses: Sterilization, fluorescent lamps, UV curing

X-Rays:

Wavelength: 0.01 nm to 10 nm

Frequency: 30 PHz to 30 EHz

Uses: Medical imaging, security, astronomy

Gamma Rays:

Wavelength: < 0.01 nm

Frequency: > 30 EHz

Uses: Cancer treatment, sterilization, nuclear physics”

Make of that as you will, please share your thoughts if you have any before continuing to read.

But for me I think about the full spectrum of colours we can see are obviously very limited. If we were able to perceive all of this spectrum, I image it is just purely more nuance and distinguishing between these levels. So imagine we could distinguish and our perception wasn’t so limited. Radio waves- Gamma rays represents a spectrum from red to violet (red, orange, yellow, green (maybe cyan), blue, (maybe indigo), violet… I notice that Jane has been since the start of the show associated with radio, television. I think this is giving us the key to understand the other characters like Will and Mike… Will has already been hinted at being in control of some characters in a way and I think this is also how the Mind Flayer achieved control of Will by stealing his power and using it against him. Now Mike is interesting because his colour could be UV a symbol for something beyond human perception in a way beyond sight (like emotion - “you’re the heart” OR or X-Rays a possible symbol for the ability to see through something…

what do you think?