#visible light

[spacewonder19]

Saturn and its rings in visible/ultraviolet

#saturn #ultraviolet light #visible light #cassini #space #astrophotography #planet #solar system #universe #astronomy #nasa #galaxy #stars #night sky #cosmos

[joehills]

I just hit a huge milestone designing my giant pinball machine in Minecraft: the playfield is all laid out!

I'm calling the game Deep Field, and there's five primary objectives based on hitting different shots representing bands of the electromagnetic spectrum.

IR: rollover switches Visible light: pop bumpers UV: captive ball X-rays: Drop targets Gamma rays: spinner

Also, a kinetic sling disc to light locks for Pluto Multiball!

#hermitcraft #deep field #jwst #pinball #electromagnetic spectrum #xray #infrared #visible light #gamma rays #no radio or microwaves not a single luxury #joehillstsd #joehills #hermitcraft 9 #joe hills #bobby mod

[thefirststarr]

SPACEMAS DAY 7 ✨🪐🌎☄️☀️🌕

The big, beautiful Andromeda Galaxy, M31, is a spiral galaxy a mere 2.5 million light-years away. Image data from space-based and ground-based observatories have been combined here to produce this intriguing composite view of Andromeda at wavelengths both inside and outside normally visible light. The visible light shows where M31's stars are now, highlighted in white and blue hues and imaged by the Hubble, Subaru, and Mayall telescopes. The infrared light shows where M31's future stars will soon form, highlighted in orange hues and imaged by NASA's Spitzer Space Telescope. The infrared light tracks enormous lanes of dust, warmed by stars, sweeping along Andromeda's spiral arms. This dust is a tracer of the galaxy's vast interstellar gas, raw material for future star formation. Of course, the new stars will likely form over the next hundred million years or so. That's well before Andromeda merges with our Milky Way Galaxy in about 5 billion years.

Image Credit: NASA/Hubble

#astronomy #space #science #universe #spacemas #day 7 #andromeda #andromeda galaxy #galaxy #new stars #visible light #infrared light #Hubble #spitzer telescope #future stars #galaxy collision #follow #like #reblog #the first star #the first starr #thefirststar #thefirststarr #nasa #apod #tumblr #blog #space blog #spiral galaxy #spiral

[straightissacnewton]

call me 0.4 to 0.7 µm because I’m visibly on the spectrum

#saturn speaks #autism #autizzy #actually autistic #electromagnetic waves #visible light #science memes #em waves #shitpost #astronomy #science

[chibinotan]

Dark Cloud Illuminated

#star forming region #Lupus 3 #visible light #nebula #Scorpius

[dailyreine]

Rie: I'm like visible light.

Rie: On a spectrum.

#oc #desunorie #original character #death note oc #writing #death note #incorrect quotes #autism #asexual #aromantic #acespec #arospec #aspec #meme #joke #visible light #science jokes #wordplay #pun

[genderimpala]

guys help how do you know if you're asexual

bc i've felt sexual attraction before but only ever to celebrities?? never to anyone i've known irl. and like. maybe it's a trust thing?? maybe i'm demisexual? like i've got a crush on this guy right now but any time i think of anything sexual, i'm like Absolutely Not, Goodbye.

#i'm autistic also and ik autistics are often ace #idk #help me pls #asexual #asexuality #demisexual #biromantic #bisexual #asexual spectrum #i'm on all the spectrums #autism #visible light #ace #lgbt #lgbtq #lgbtqia #lgbtqia+ #queer #pride #lgbtq community

[going2hell4everythingbutbeingbi]

catch me on all the spectrums but one

sexuality ✔️

gender ✔️

autism ✔️

visible light ❌

#sexuality #gender #autism #visible light #spectrum #gender spectrum #sexuality spectrum #autism spectrum #queer #lgbtq+ #lgbt #lgbtq #lgbt+ #i already made this joke in a post but only in the tags so

[wayti-blog]

Hubble provides unique ultraviolet view of Jupiter

Credit: NASA, ESA, and M. Wong (University of California–Berkeley); Processing: Gladys Kober (NASA/Catholic University of America)

"This newly released image from the NASA Hubble Space Telescope shows the planet Jupiter in a color composite of ultraviolet wavelengths. Released in honor of Jupiter reaching opposition, which occurs when the planet and the sun are in opposite sides of the sky, this view of the gas giant planet includes the iconic, massive storm called the "Great Red Spot.""

continue reading article

#jupiter #hubble #hubble telescope #uv #visible spectrum #wavelength #astronomy #space #solar system #universe #light #visible light #energy #frequency #ultraviolet #color spectrum #colors #waves #science

[er-cryptid]

Visible Light

Patreon

#studyblr #notes #my notes #physics #physics notes #physics vocabulary #physics vocab #science #introductory physics #physics 1 #physics 2 #physics I #physics II #physics terminology #scientific terminology #physics concepts #concepts in physics #electromagnetic spectrum #em spectrum #visible light

[materialsscienceandengineering]

Solid material that 'upconverts' visible light photons to UV light photons could change how we utilize sunlight

The importance of solar power as a renewable energy resource is increasing. Sunlight contains high-energy UV light with a wavelength shorter than 400 nm, which can be broadly used, for example, for photopolymerization to form a resin and activation of photocatalysts to drive reactions that generate green hydrogen or useful hydrocarbons (fuels, sugars, olefins, etc.). The latter of these is often called "artificial photosynthesis." Photocatalytic reaction by UV light to efficiently kill viruses and bacteria is another important application. Unfortunately, only about 4% of terrestrial sunlight falls within the UV range in the electromagnetic spectrum. This leaves a large portion of sunlight spectrum unexploited for these purposes.

Photon upconversion (UC) could be the key to solving this problem. It is the process of converting long-wavelength, low-energy photons (such as those present in visible light) to short-wavelength, high-energy photons (such as those present in UV light) via a process called "triplet-triplet annihilation" (TTA). Previous work in this field has reported visible-to-UV UC using organic solvent solutions that required the solution to be deoxygenated first and then sealed in an airtight container to prevent exposure to oxygen that deactivated and degraded TTA-based photon UC samples. These materials not only lacked photostability in the presence of oxygen, but also failed to perform effectively with sunlight-intensity incident light. These issues presented roadblocks in the practical applications of photon UC.

Read more.

#Materials Science #Science #Photons #Light #Optics #Visible light #UV Light #Tokyo Institute of Technology

[whats-in-a-sentence]

Figure 20.3 summarises the wavelengths and frequencies of some regions of the electromagnetic spectrum. (...) The infrared region of the electromagnetic spectrum (figure 20.3) covers the range of wavelengths from 7.8 × 10-⁷ m (just longer than the visible than the visible region) to 2.0 × 10-³ m (just shorter than the microwave region).

"Chemistry" 2e - Blackman, A., Bottle, S., Schmid, S., Mocerino, M., Wille, U.

#book quotes #chemistry #nonfiction #textbook #wavelength #electromagnetic spectrum #gamma rays #x rays #ultraviolet light #uv light #visible light #infrared light #microwaves #radio waves #fm radio #am radio #long radio waves #frequency

[nandinivibes]

"Lighting the Path: Unveiling the Brilliance of Visible Light Communication"

In the realm of wireless communication, a fascinating technology is emerging, shedding light on new possibilities—quite literally. Visible Light Communication (VLC) is revolutionizing the way we transmit data, using the visible spectrum of light to transfer information at remarkable speeds.

The Basics of Visible Light Communication

VLC operates by modulating the intensity of light signals emitted by LED sources. These light signals, imperceptible to the human eye, can transmit data when received by a photosensitive receiver. The core advantage of VLC lies in its ability to leverage existing lighting infrastructure for dual purposes—illumination and communication.

Speed and Efficiency

One of the key strengths of VLC is its speed. With data rates reaching gigabits per second, VLC outpaces traditional Wi-Fi in certain scenarios. The high-frequency nature of visible light allows for quick and efficient data transfer, making it ideal for environments where rapid communication is crucial.

Applications in Indoor Navigation

VLC is finding practical applications in indoor navigation systems. By embedding VLC technology in lighting fixtures, locations like airports, shopping malls, and museums can offer precise navigation information to users through their smartphones. This not only enhances user experience but also opens up new possibilities for location-based services.

Li-Fi: The Future of Wireless Connectivity

Li-Fi, a specific application of VLC, has gained attention as a potential successor to traditional Wi-Fi. Operating on the same principles as VLC, Li-Fi boasts higher data transfer speeds and enhanced security. As more devices become equipped with Li-Fi capabilities, we may witness a paradigm shift in how we connect to the internet.

Overcoming Challenges

While VLC presents exciting prospects, challenges such as signal interference and limited range in outdoor environments remain. Researchers are actively addressing these issues to unlock the full potential of VLC for widespread adoption.

VLC in Defense

Visible Light Communication (VLC) holds significant promise in defense applications, offering unique advantages in terms of security, data transfer speed, and versatility.

Secure Communication

Security is paramount in defense applications, and VLC provides an additional layer of protection. Unlike traditional radio frequency communication, VLC operates within the visible light spectrum, making it less susceptible to eavesdropping and external interference. This inherent security feature makes it an attractive option for transmitting sensitive information in military operations and secure communication channels.

Covert Operations

VLC's use of visible light allows for covert communication in situations where radio frequency signals might be detectable. By leveraging light signals, military personnel can establish communication links without revealing their positions through electromagnetic emissions. This capability is particularly valuable in stealth operations and tactical scenarios.

Immune to Electromagnetic Jamming

VLC is immune to electromagnetic jamming, a common tactic used in electronic warfare. In military operations, adversaries often attempt to disrupt communication systems by jamming radio frequencies. VLC's reliance on visible light signals renders it impervious to these jamming techniques, ensuring reliable communication channels even in hostile environments.

Rapid Data Transfer for Surveillance

In defense applications, timely and secure data transfer is crucial, especially in surveillance and reconnaissance missions. VLC's high-speed data transfer capabilities allow for quick transmission of large volumes of data, such as high-resolution images and video feeds. This is invaluable for real-time decision-making and situational awareness on the battlefield.

Indoor Navigation and Communication in Confined Spaces

VLC can be particularly beneficial in indoor environments where GPS signals may be weak or unavailable. Defense personnel operating in confined spaces, such as bunkers or underground facilities, can utilize VLC for navigation and communication. This ensures seamless connectivity and coordination in areas where traditional communication methods may face challenges.

Integration with Existing Infrastructure

The military often operates in diverse environments, and VLC's adaptability to existing lighting infrastructure makes it a practical choice. Military installations, bases, and vehicles equipped with VLC-compatible lighting systems can establish communication links seamlessly, enhancing overall operational efficiency.

In conclusion, Visible Light Communication in defense applications offers a secure, covert, and reliable communication solution. As technology continues to advance, integrating VLC into military communication strategies has the potential to significantly enhance the capabilities of defense forces in various operational scenarios.

Visible Light Communication is not just a bright idea; it's a technology with the potential to reshape our connectivity landscape. From faster data transfer to enhanced indoor navigation, VLC is paving the way for a future where light serves as more than just illumination. As researchers continue to refine and expand its capabilities, VLC stands poised to illuminate our path toward a more connected and efficient world.

#vlc #visible light #visible light communication #communication #defense

[namedforvalor]

She’s romanticizing the five o’clock sun again folks.

#valor #cottage #cottage core #sunlight #visible light #sunshine #golden hour #golden #60s home #60s interior #60s architecture #warmth #cozy #wallpaper

[chibinotan]

Visible Light Nebula

#dark nebula #Sh2-54 #visible light #nebula #Serpens Cauda

[miss-biophys]

“What is the color of molecules?” my daughter asked.

My daughter really surprised me with this question. I have never thought about it. So what color are molecules? How accurate are the cartoon depictions of viruses, DNA, or cell membranes?

Molecules are smaller than the vawelength of visible light. As such, they are invisible even to the best optical microscope. They also do not reflect any visible color. They simply do not have any color visible to human eyes. So you can color them according to your own imagination.

#color #coloring book #DNA #RNA #virus #color of magic #color of molecules #molecule #visible light #unvisible #secret #imagine #imagination #scientist mum #parenting #original content