#ScienceBehindSciFi
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In a robot apocalypse, I'd make capsules of cyanoacrylate and baking soda, separated into compartments. I'd fire them from a pneumatic rifle. When the capsule bursts, the cyanoacrylate would react with the baking soda and polymerize instantly, locking up the robot's joints. #ScienceBehindSciFi
Terminator Robot with Glowing Red Eyes
ALT: Terminator Robot with Glowing Red Eyes
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September 18, 2026 at 7:50 PM
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#ScienceBehindSciFi: Is a singularity the same as a black hole?

Not quite! A black hole is an (indirectly) observable phenomenon. A singularity is a limit of the mathematics that predicted the black hole's existence.

ko-fi.com/post/Is-a-si...
Is a singularity the same as a black hole?
Edgecrusher published a post on Ko-fi
ko-fi.com
August 29, 2026 at 5:22 PM
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Xenomorph blood behaves like an acid when in contact with metal, and like a caustic base when in contact with organic materials.

If I had to explain this as a technical writer, I'd say it's an alpha emitter. It ejects protons until it changes from an acid to a base.

#ScienceBehindSciFi #Alien
March 30, 2026 at 9:48 AM
edgecrusherntb.bsky.social
👋 Name: Edge
🧏‍♂️ Pronouns: He/Him
🗺 Location: US
🧑‍🔬🦺💪 Hobbies: Mechanical design, technical writing, electronics, weightlifting, martial arts, survivalism

#ScienceBehindSciFi: Breakdowns of references to real science in fictional media

#PublicPreparedness: Info and resources for ongoing US issues
January 12, 2026 at 11:35 PM
edgecrusherntb.bsky.social
How close to a black hole do you need to be to experience time dilation?

The answer depends on your starting frame of reference. Time is only relative; there is no absolute time, so this isn't a simple, static distance. ko-fi.com/post/How-clo...

#ScienceBehindSciFi
How close to a black hole will a person experience time dilation?
Edgecrusher published a post on Ko-fi
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December 27, 2025 at 9:45 PM
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The physics - both sensible and nonsensical - behind the jump across outer space while traveling at near-lightspeed in Destiny 2's new Equilibrium dungeon!

ko-fi.com/post/Classic...

#Destiny2 #ScienceBehindSciFi
Destiny 2's new Equilibrium dungeon includes an area where players jump from one part of the ship to another, across the void of space, while traveling at near-lightspeed. Teammates who have been in the dungeon with me have been asking about the physics of this jump- so let's break it down! In real life, if you were to jump off a spaceship and into the void of space, you would keep moving in the direction you initially pushed off. This would go on indefinitely, until you were able to exert a force in a different direction. Astronauts wear Manned Maneuvering Units, or MMUs, to move in a desired direction in space by ejecting pressurized gas in the opposite direction. In the Equilibrium dungeon, this jump across space at near-light speed behaves as if the spaceship has gravity similar to that of the moon: less than we’re accustomed to, but enough to keep us from floating off its surface. This spaceship would either need to have roughly the mass of the moon, or some kind of fictional gravity generator/concentrator in place to achieve this effect. While crossing through open space, the player receives a stacking negative status effect called “NLS (Near-Lightspeed) Exposure,” which will kill them if it stacks high enough. The player is also pushed, as if by wind, making it difficult to land on the platform on the opposite side. Is there any truth to this, in terms of physics? First, let’s look at the player being pushed as if they’re in a wind tunnel while making this jump. The player is jumping from one part of the spaceship to another part of the same spaceship. The ship seems to be moving in a straight line (as opposed to making a turn), as a single unit (it doesn’t consist of multiple parts moving at different speeds). The physics involved in such a jump are similar to a classic puzzle: if a person is bouncing on a trampoline, which is mounted to the back of a flatbed truck, as the truck drives down the highway, will the truck move out from under the person… What about the stacking “NLS Exposure” that eventually kills the player character? One might wonder, what is that, anyway– some kind of radiation or something? Well, if you are moving at near-lightspeed, and you cross paths with something moving much slower, it’s going to cause damage! Consider: if you are in a parked car, and a car traveling at 60 miles per hour (~100 km/h) smashes into it, you would expect the same degree of damage to occur as if you were driving a car at 60 mph and hit a parked car. Similarly, while traveling at near-lightspeed, any tiny piece of matter that is slowly drifting through the void of space becomes a severely damaging projectile– like a reverse bullet. While near-lightspeed spacecraft remain fictional, the general idea of this “exposure” mechanic is a real physics/engineering challenge that must be accounted for by NASA: the International Space Station orbits the Earth at a speed of approximately 17,100 mph (27,600 km/h). If it collides with a piece of debris from an old satellite that is lazily floating nearby, it needs to be able to withstand the damage.
December 15, 2025 at 1:03 AM
edgecrusherntb.bsky.social
At long last, my #ScienceBehindSciFi: The Desert Perpetual document is complete! 30 pages of breaking down references to real-world science- whew! ⚛️

Read it on Google Docs: tinyurl.com/ayyxtzyf
Or, Read it on Ko-Fi: tinyurl.com/3dhswdnr

#Destiny2 @bungie.net @destinythegame.bungie.net

(1/8)
October 27, 2025 at 7:38 AM
edgecrusherntb.bsky.social
I am still working on this paper about the physics references in the Desert Perpetual raid! Currently 27 pages and still not done. Shout-out to whatever writer at Bungie really, really loves physics!! 👏⚛️

#Destiny2 #ScienceBehindSciFi
October 23, 2025 at 5:09 AM
edgecrusherntb.bsky.social
Preview of a new document I've been working on for the past month and a half- #ScienceBehindSciFi: The Desert Perpetual, breaking down references to real-world science in the most recent #Destiny2 raid!
Dark Matter Dark matter is an overarching theme in the Edge of Fate expansion, and a great mystery of real-world science. Relativistic physics - the branch of physics tied to Albert Einstein’s famous E=mc² equation - predicts how energy and matter will behave on the scale of celestial bodies: stars, planets, solar systems, galaxies, and beyond. The more mass an object has, the greater gravitational force it exerts; hence, human beings weigh less on the Moon than we do on Earth, and would weigh more on Jupiter. Knowing how mass and gravity affect each other, astrophysicists can determine how solar systems and galaxies should behave… But when we observe the universe, we find that structures on the cosmic scale are behaving as if there is more mass than we’re able to detect. That mysterious mass is dark matter. The name is quite literal: dark matter is matter that doesn’t emit, absorb, or reflect electromagnetic energy (which includes visible light). The fact that dark matter only seems to interact with gravity makes it difficult to study, and as a result, we know very little about it. Iatros This boss Wyvern, whose name - Iatros - is Greek for “physician,” has a prompt associated with its encounter that gives us a glimpse into Destiny 2’s worldbuilding surrounding dark matter: A prompt seen when starting the Iatros encounter. “Axion (a type of hypothetical particle, postulated to comprise dark matter) is axiom (truth).” It appears that the dark matter in Destiny’s worldbuilding is composed of axions: hypothetical particles which have been suggested by physicists as a solution to the mystery of dark matter. To understand the significance of axions, it’s necessary to introduce another branch of physics: quantum physics. The word “quantum” describes the smallest observable unit of an entity or effect; for example, an electron is a quantum of electricity. Several electrons may be described as “quanta.” As relativity predicts how energy and matter behave on the cosmic scale, quantum physics predicts how they behave on the scale of atoms and subatomic particles. At its core is the Standard Model of Particle Physics, which uses an equation called a Lagrangian to determine how each elementary particle should interact with others. Quantum physics deals with four fundamental forces: Strong (which holds certain elementary particles together to form atoms), Weak (which governs the radioactive decay of unstable atoms), Electromagnetic, and Gravity. The fundamental forces are carried by particles called bosons. You may be familiar with the photon: a particle of light. Photons are bosons which carry the electromagnetic force. When the electromagnetic energy they carry is within a certain range of wavelengths, it occurs as visible light. A different class of particles, called fermions, compose atoms. In real-world physics, axions are one of three main candidates proposed to make up dark matter. The other two are Weakly-Interacting Massive Particles (WIMPs), and sterile neutrinos. Axions, if they exist, would be a type of boson (a force-carrying… Target emitting sterile neutrinos, phaeton spectra, and mass growl. Major radiation events include gravity waves and axion scatter. Techeun conclusion: target possesses radical ontomorphic capabilities [see BANE DREAMER] █ Source: Dreadnaught Axions were originally proposed by physicists not as a dark matter candidate, but to solve another discrepancy in our understanding of physics called the Strong CP problem. Some interactions between elementary particles are predicted to exhibit symmetry when the charge and/or parity of the particle involved is reversed, while others are not. Symmetry in this context can be conceptualized using simple arithmetic. 8 + 2 is the same as 2 + 8, but 8 - 2 isn't the same as 2 - 8. Depending on what operation you're doing with your numbers, the order of the numbers may or may not change the outcome. In this analogy, addition is symmetric (the order of the numbers doesn't change the outcome), while subtraction violates that symmetry (the order of the numbers changes the outcome). When elementary particles interact with the electromagnetic force, charge - the “C” in the Strong CP problem - is symmetric. Replace a particle of matter with its antimatter counterpart, and the interaction doesn't change. Parity - the “P” in the Strong CP problem - is also symmetric. Replace a particle spinning clockwise with one that is spinning counterclockwise, and the interaction with the electromagnetic force still doesn't change. The Standard Model predicts this symmetry when dealing with the electromagnetic force, and it can be observed in laboratories studying particle interactions. These equations also predict that interactions with the weak force and the strong force are not symmetric. Under certain conditions, changing charge and parity should change the outcome. This change in outcome has been observed in interactions with the weak force, but no experiment has ever observed it in an interaction with the strong force. This suggests som… particles, including protons, neutrons, electrons, photons, and others) to the root word “chronos” (the Ancient Greek personification of time). An item, “Cinnabar Chronons,” that players interact with as part of the raid mechanics. The implication seems to be that time is a fifth fundamental force (alongside the four fundamental forces seen in real-world quantum physics: Strong, Weak, Electromagnetic, and Gravity), and the chronon particles are the force carrier. In quantum physics, time is a background parameter, and considered to be absolute. This contradicts relativistic physics, in which time is an aspect of spacetime, and exists relative to gravity (in general relativity) or to velocity (in special relativity). The fictional “chronon” particle seen throughout the raid appears to be a way of unifying quantum and relativistic physics within the Destiny universe, by having the flow of relativistic time be dictated by force-carrying quanta (elementary particles). As the encounter mechanics progress, the players trigger a prompt: “Iatros loses control of phase space.” To conceptualize phase space, imagine an industrial robot arm, used to perform tasks in an automated factory. A robot arm manipulates objects in a bin in front of it. Image Source: Popular Mechanics Configuration space refers to all of the possible configurations of a given physical system. The configuration space of this robot arm consists of all of the possible combinations of movements the arm can do. It encompasses all of the possible physical positions it can be in: fully extended, fully retracted, the complete range of motion of each of its joints. In addition to knowing what positions the robot arm can be in, an engineer might need to know how fast it can move, and how much stress would be on its joints should it abruptly change the
September 24, 2025 at 4:04 AM
edgecrusherntb.bsky.social
You can create a pressure vacuum in a water bottle by drinking the water without allowing any air to take its place. Did you know that it's also possible to create an electromagnetic-force "vacuum" between two conductive plates?

ko-fi.com/post/A-Broad...

#ScienceBehindSciFi
e a bottled water- the sort that comes in a flimsy, plastic bottle. You gulp down the water quickly without allowing air into the bottle to take its place. You notice that the sides of the bottle cave in, as if being crushed, but your hand is not exerting a crushing force on the bottle. This happens because you've created a vacuum inside the bottle. The water that once filled it has been removed, and no air has entered to replace that water. There's air at normal atmospheric pressure all around the outside of the bottle, however. Without air inside to balance out the pressure, the air outside is causing the sides of the bottle to cave in. In this water-bottle analogy, we're dealing with the scale on which we live our everyday lives: Newtonian physics; kinetic and potential energy. The Casimir Effect describes something similar occurring at the quantum scale - that is, the scale of particles smaller than an atom - with conductive materials and the electromagnetic force. Take two conductive plates, spaced nanometers apart, and remove all of the particles from between them. Not just the atoms and molecules that make up the air, but the photons, which carry the electromagnetic force. You have created a vacuum of electromagnetic energy between the two plates. Now there's all this electromagnetic energy - everything that's ambient in the setting - on the outer surface of these two plates. Only very specific wavelengths of the energy can pass from the outside to the inside. So, like the air pressing on the outside surface of the bottle, causing it to cave in, the difference in the electromagnetic force on the outer and inner surfaces of these conductive plates causes them to become attracted to each other, kind of like a magnet. The Casimir Effect has another interesting attribute: if one curves the two conductive plates just right, and moves them toward and away from each other at the right speed, photons momentarily appear between the two plates, then vanish from e… These photons are called virtual particles, and occur because of the few, very specific wavelengths of electromagnetic energy that make it into the space between the plates. A core concept in quantum physics is that these entities smaller than an atom can behave like waves, or they can behave like particles, but when they interact with something, it forces them to exist in that moment as one or the other. The photons enter the space between the conductors by behaving like waves, then the movement of the plates causes them to momentarily enter the state of being particles in that position. As predicted by the Heisenberg Uncertainty Principle, that precise state and position do not last. The next instant, if one goes to measure the particle, they may find it outside of the space between the plates. Physicists Stephen Hawking and Kip Thorne have suggested that the Casimir Effect may allow wormholes to be stabilized long enough to be traversable. As of August 27, 2025, no physical wormhole has been discovered on which to test this hypothesis. I hope it will be testable in my lifetime.
August 27, 2025 at 5:39 AM
edgecrusherntb.bsky.social
#Destiny2 fans: Time dilation is not "woo-woo space magic." Not only is it a real concept that exists in real life, it has practical implications! It affects GPS satellites, and has to be taken into account.

Learn more: sites.pitt.edu/~jdnorton/te...

#ScienceBehindSciFi
Special Relativity Simultaneity
sites.pitt.edu
August 19, 2025 at 2:18 AM
edgecrusherntb.bsky.social
Quantum entanglement isn't a medium by which to *transfer* physical characteristics!

It's a state in which characteristics are inherently correlated.

#ScienceBehindSciFi
August 10, 2025 at 8:39 PM
edgecrusherntb.bsky.social
I've seen a few mentions that EoF changed the Vex from "time travel" to "timeline hopping." I'd like to point out:

- We've known the Many-Worlds Interpretation is proven in the Destiny universe since Beyond Light, and

- Divergent timelines *is* a type of time travel.

#Destiny2 #ScienceBehindSciFi
July 18, 2025 at 7:20 PM
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Today is my birthday! 😃🎂 30 revolutions around the Sun

If you like my art and/or the PublicPreparedness and ScienceBehindSciFi info I share, please consider donating to my Ko-Fi: ko-fi.com/edgecrusherntb

I will always keep my art and info free. Donations allow me to make more, faster!
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July 3, 2025 at 10:53 PM
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#ScienceBehindSciFi articles will now be available on Ko-Fi! How much force could an Exo exert without restrictors on its strength? ko-fi.com/post/How-muc...

Donate $3 and ask a technical question! You'll get a better answer from me than you will from Google's AI assistant 😜
How much force could an Exo exert without restrictors on its strength?
Edgecrusher published a post on Ko-fi
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July 2, 2025 at 7:48 AM
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What makes an organism desirable or undesirable for use as a biological weapon?

(Original/exact question was, Why use anthrax as a biological weapon? Why not something more dangerous, like polio?)

Note: I'm answering from a risk assessment perspective. I'm NOT a medical expert

#ScienceBehindSciFi
Why use anthrax as a biological weapon? Why not something more dangerous, like polio? This was a question that a friend of mine asked, knowing that I do risk assessment for emergency management. Biological warfare is an interesting study in risk assessment: it has an extremely low likelihood of happening, extremely high consequences if it ever does happen, and there are few instances of it from which to draw statistical data. Sci-fi worldbuilding and technical writing does often involve militaries and alien pathogens, so let's look at this in more detail: What makes an organism desirable or undesirable for use as a biological weapon? First, let's look at the two specific organisms that were brought up for comparison: anthrax and polio. Is polio "more dangerous" than anthrax? Well, it depends on what criteria you're using to define "dangerous." Polio infection is asymptomatic in 75% of cases, presents with mild, flu-like symptoms in 24% of cases, and causes infection of the nervous system in 1% of cases. For the 1 in 100 people with nervous system involvement, there's anywhere between a 20% to a 70% chance of permanent weakness/paralysis of a body part. That's anything from experiencing weakness in one limb, to losing the ability to breathe on one's own. It occurs in less than 1% of all polio infections. In comparison, there's no such thing as asymptomatic anthrax. If one is infected through a cut in their skin, they have good odds of survival, though: 80% with no medical intervention whatsoever; 100% with antibiotics. (If the infection is through the inhalation route, the odds of survival are far less in their favor, even with treatment.) Looking at these statistics, it's unlikely to think that polio is more dangerous than anthrax. Here is where a person could make that argument: we have antibiotics and antitoxins to treat anthrax. There are things that we can do about it. Anthrax is a bacteria. Polio is a virus, which is a simpler organism, and therefor… And anthrax is scary to look at. If a person has the cutaneous form (an infection in their skin), which is by far the least dangerous, they'll develop a large, black, nasty-looking lesion. Uninfected people will see that and think twice about whether or not they want to go to work that day! The treatment for anthrax - ciprofloxacin or doxycycline - has side effects that will hinder a person's ability to do their job, and must be taken for three months. So even if one were to infect the enemy with anthrax, all of the infections are cutaneous, they're better technologically-equipped, ready to go with the cipro, and nobody dies, everybody is going to be taking antibiotics with unpleasant side effects that prevent them from working efficiently. Polio, in comparison, needs a moist environment to survive more than a couple of days outside the body. It only infects humans. It's asymptomatic in 75% of cases. Its spread from environment to human can be prevented by simply practicing good hygiene (in industrialized places where that is easy to do). And of course, most countries vaccinate against polio. Per the World Health Organization, polio remains endemic (in the environment) in only two countries: Afghanistan and Pakistan. We're on our way to eradicating it completely, as we did with smallpox. This was the first point I brought up during the actual conversation: a biological weapon that most people worldwide are vaccinated against is ineffective. To which the person asking responded, "But why not make a scarier version of polio that isn't affected by the current vaccines?" That isn't an easy thing to do, as they make it look in spy movies. It isn't always possible. Not all viruses mutate as rapidly and readily as COVID-19 that we all wish would stop mutating. Polio has remained stable for the past couple centuries, to my knowledge (and to be clear, I'm NOT a medical doctor or a microbiologist, so that statement is really beyond my scope!) To do such a thing woul…
June 4, 2025 at 5:28 PM
edgecrusherntb.bsky.social
Shout-out to whoever at @destinythegame.bungie.net @destiny2team.bungie.net @bungie.net put a minotaur named "Ohm The Resistant" in the modified version of Spire of the Watcher!! 🤣🤣🤣

For those who missed this- the ohm is the unit of measurement for electrical resistance.

#ScienceBehindSciFi
May 10, 2025 at 5:53 PM
edgecrusherntb.bsky.social
Teaching some mechanical engineering 101 to an artist who wants to get better at designing functional mechas! 🤖

#ScienceBehindSciFi
You can also see lots of cylinders on the Terminator! You see how he has a cylinder on the front of his upper arm, and one on the back, where a human's biceps and triceps would be? The ones on the Terminator work like a human's biceps and triceps, too. When his hand is resting at his side, the front rod is extended from its cylinder, and the back rod is retracted inside its cylinder. Just like, when your own arm is resting at your side, your biceps is elongated, and your triceps is shortened. If the Terminator does a bicep curl, the front rod retracts into its cylinder, and the back rod extends. Just like your biceps contracting and shortening, while your triceps elongates 💪
April 2, 2025 at 8:34 PM
edgecrusherntb.bsky.social
Making up headcanons about fantasy creatures, using my experience as a sci-fi technical writer! #ScienceBehindSciFi
Sci-Fi Technical Writer Makes Up Headcanons About Fantasy! Shapeshifters have faster anaerobic metabolism than any other species. This includes the rate at which their bodies clear theobromine. Therefore if a shapeshifter eats chocolate, then transforms into a dog while it's still digesting, they won't be poisoned. (However, they are more vulnerable to other substances that only become poisonous during the process of metabolism, such as ethylene glycol.) Centaurs have two stomachs. One is in the human anatomical position and primarily breaks down protein and fat. The other is in the horse anatomical position and primarily breaks down carbohydrates. Vampire fangs inject a virus that instructs a bite victim's cells to produce vampire cells. That's how their bites transform their victims into vampires. Similar to snake venom, it takes time for a vampire to regenerate their virus cells after biting a victim, so someone may receive a "dry bite" that doesn't transform them into a vampire. Necromancers are able to extend bioelectric signals to entities beyond their own bodies. The messaging that tells their own cells to die, regenerate, or replicate, they can direct to cells that are not their own.
March 12, 2025 at 8:26 PM
edgecrusherntb.bsky.social
If you found a chunk of antimatter big enough to see with the naked eye, and kept it stable long enough to look at it, could you actually see it?

Yes!

It would appear identical to its matter counterpart. Just don't touch it if you want to keep your specimen... and your hand! #ScienceBehindSciFi
Hypothetically, if we could find a chunk of antimatter large enough to see without a microscope, and keep it stable long enough to look at it, would our eyes be able to see it? Yes, they would! Antimatter has the same properties as matter, but with the opposite electrical charge. A proton (a particle at the nucleus of an atom of matter) is positively-charged, while an antiproton is negatively-charged. We're able to see the objects around us because photons - quantum units of electromagnetic energy, in this case occurring within the spectrum of visible light - bounce off them, then enter our eyes, and our brains translate those photons entering our eyes into what we know as our sense of sight. And the electrical charge of photons is neutral. There is no difference between a photon interacting with matter, and a photon interacting with antimatter. So, if we could find a chunk of antimatter large enough to see, and keep it stable for long enough to take a look at it, it would look identical to its matter counterpart.
February 27, 2025 at 10:13 PM
edgecrusherntb.bsky.social
What is entropy? Chaos? Disorder?

Entropy is how physicists describe the equalization of energy within a system.

I just got my breakfast off the stove, and it's too hot to eat. I wish entropy would do its thing faster! 🤣

#ScienceBehindSciFi
Entropy is a common theme in science-fiction. It's chaos. It's disorder. It's things going wrong. You might know it as the concept of Newton's Second Law of Thermodynamics: The universe began in a low-entropy state, and everything that happens increases the amount of entropy in the universe. One day this will lead to the "heat death" of the universe. But none of these explanations really help a person who's new to physics visualize what entropy is, or how it works. Further, the explanation of entropy as "chaos and disorder" is really driven by our subjective, human interpretation of how we want the universe to work- not the natural order of the universe itself. So what is entropy, really? It's a process of the equalization of energy within a system, and the state of that energy being equalized. Every time energy is moved from place to place or converted between states, some of it is wasted as heat. As electricity travels through wires and light bulbs, they become warmer. When chemicals react to produce different compounds, the reaction generates thermal energy. When you push a heavy object, friction occurs between its surface and the floor, resulting in heat. And what does heat do? It equalizes with its environment. If you set a hot cup of coffee on your desk, forget about it, and come back to it later, you can be certain that the coffee will have cooled to the temperature of the room. The thermal energy of the hot coffee equalizes with the ambient thermal energy in the room, so the temperature of the room rises by an imperceptible fraction of a degree, while the coffee gets noticeably colder. Room-temperature coffee? Yuck! Someday, as these thermodynamic processes continue, all of the energy in the universe will be converted to heat, because of that little bit in every reaction. And someday, all of that heat will have equalized. There will be no more energy in our universe. When that happens, the forces that hold matter together - which are a form of ener…
February 19, 2025 at 3:38 PM
edgecrusherntb.bsky.social
Most of us have heard of quantum physics, but do you know what "quantum" means?

A quantum is the smallest unit of some kind of observable effect. For example, a photon is a quantum of light, and an electron is a quantum of electricity.

#ScienceBehindSciFi
February 1, 2025 at 5:29 PM
edgecrusherntb.bsky.social
Arsenic interferes with multiple metabolic processes. In the simplest terms, it prevents individual cells from receiving the energy from the food you eat.

This has been used as an antibiotic/antiparasitic, not just a poison! See: "Salvarsan" #ScienceBehindSciFi

pmc.ncbi.nlm.nih.gov/articles/PMC...
January 3, 2025 at 8:17 PM
edgecrusherntb.bsky.social
Breaking down the science behind the worldbuilding of the Vex! One of the most intriguing concepts for an alien organism I've seen. (1/4) #Destiny2 #ScienceBehindSciFi

docs.google.com/document/d/1...
December 24, 2024 at 10:06 PM
edgecrusherntb.bsky.social
Radioactivity is often depicted in fiction as neon green and glowing.

In truth, ionizing ("radioactive") radiation and the light we see with our eyes are parts of the same spectrum of electromagnetic energy! We can't see ionizing radiation because the wavelengths are too short. #ScienceBehindSciFi
December 17, 2024 at 10:31 PM