ScienceCasts: Strange Flames on the International Space Station
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- Опубликовано: 7 фев 2025
- Visit science.nasa.gov/ for breaking science news.
Researchers experimenting with flames onboard the International Space Station have produced a strange, cool-burning form of fire that could help improve the efficiency of auto engines.
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I wonder what a flamethrower would look like in zero g...
Please say the temperature in degrees Celcius too. Using only Farenheit in a science video is just wrong.
Metric system was designed for science,it is as simple as numbers that it.0 Celsius is when water turns to ice and 100C is the boilng point.
scientists use this thing called the SI Unit. its like a universal unit for scientists around the world . in this case is celsius.
This is great. NASA, thank you so much for the interesting, relevant, and succinct videos. Keep up the great work!
Cool Flames are what cause combustion engines to knock, but the chemical reaction is a bit different in 1G and it does not last very long. It seems that in microgravity, the gravitational mass of the fuel causes the flame to condense, keeping the reaction contained in a cool sphere with greater longevity - at 400 C° instead of 1100 °C. It would be difficult to reconstruct those conditions on Earth, but it's food for thought nonetheless.
This is one of the most interesting sciencecasts I can remember watching. Very cool.
Also, as a U.S. citizen, I would appreciate at least a text notation of metric units alongside verbalized non-metric units, if not the other way around.
"Flames are hard to understand...because they are complicated!!!"
WELL SAID!!! ROFL... ^_^
I love that something as simple as a flame brings SO MUCH MYSTERY that we humans haven't found out, that will bring LOTS of new technologies and Knowledge.
...
love science :)
There should not be 'bias' or 'favours owed' in science outreach. Just because a science organisation is funded by a group of people who use 'elephant's trunks' as a unit of distance, does not mean it should change the way science is done and taught.
One of the best things about science is that it does not belong to any one nation or people. It will always be better to use SI units in an educational science video.
Kelvin is referenced more often for very cold temps as zero degrees K (or absolute zero) is -273 C. (no minus temps in Kelvin). Therefore, zero degrees C is 273 K and 100 C is 373 K.
because the people who made the video have the exclusive right to use whatever system they want.
In space, they experience zero g. Not zero gravity. There is some but not much. They are traveling at about the same speed as their surrounding. Not zero gravity
Formaldehyde exhaust doesn't seem to be an improvement over current exhaust products.
I"m not following how changing to a combustion engine whose exhaust is primarily CO and HCHO is a good thing.
Thank you NASA for posting these videos - this one was particularly interesting.
What is less interesting are the comments made by persons commenting on someone else's comment.
I love that they do this stuff and report it. But like all things people see, I keep expecting them to say, well, even though it looks like that, and our people see it, it is just a camera issue, or some light and lenses distortions. (regardless if they confiscate the film when you land). I really do love what is reported, I just wish all the information was. I find it all interesting.
I don't have a model of the sun. I'd never sleep with it shining away in the corner.
Thank you Nasa, for share something make me very surprise, i love inteligent people.
I believe something like a 'gas wick/inducer' will be needed to allow a continuous, passive 'candle flame' process to work without gravity. More later.
But the station itself is in free fall, which means that the force of gravity does not have a noticeable effect relative to the station's frame of reference.
I guess it was meant to be understood by the general public. Most Americans don't know Celsius.
wow... love it. One day i would love to be at least as a visitor on any nasa place.....
thank for the information.
I understand what you mean, I prefer Celsius myself.
This explains everything.....
This is a good video, says Neotheone
Sales prospects need to remember that we do have a thing called physics and chemistry that rule this planet since its inception.
What if the government hurries your bricks into the market only to find out later they fall apart after a year? Or that they can't cope with water?
Building codes related to the structure of a house are strict for that reason.. So the process is hard and expensive, if this product is as good or better than the current product in use the profit will be worth the effort
There are practical reasons/advantages to using F v C or K, and of course more reasons for not converting. Since the US has so many more non-technical people than technical, and than Europe, it will require much more time (if ever) for the still imperfect 'metric' system to become commonplace here.
'cause it's NASA. We're Americans!
Very cool, like it so much. Always believe there are so much to learn & secrets to reveal.
What is formaldehyde?
Hey, UC San Diego! Home sweet home!
Tc = (5/9)*(Tf-32)
Tf = (9/5)*Tc+32
Tc = temperature in degrees Celsius, Tf = temperature in degrees Fahrenheit
was wondering about that myself
Because we in the USA can't convert too well as we don't use it. I know we should and I try to get the concept as I live on the Canadian border so I hear it at times.
Awesome video.
I'll stick up for you on this post since what you say makes sense and the response has a lot of thumbs up
The average American would rarely even see a Celsius measurement outside of a science classroom (which Americans are failing at anyways), and if they did they would look for the Fahrenheit measurement in order to understand it.
Because it's aimed at non-scientists in America where Fahrenheit is the convention.
I work with a brilliant engineer who is currently fighting the Australian government to allow non baked brick products into our housing regulations. Our pressed bricks use 5 kj per ton compared with 5000 kj per ton for a conventional kiln fired brick. Our bricks are as durable and have better insulative characteristics than the fired product. Why do we have to "fight" to allow a superior product into the market? Our kids have a right to this planet but corporations are not interested in helping.
so does this mean their model of the sun is flawed?
If the earth was spinning 500 mph at the equator and orbiting the sun at 50 000 mph, would there be less pollution? It appears velocity of orbit is critical to atmosphere retention, and combustion cycles.
is this one better? NASA IS located in USA
cool flame
Because they wanted to communicate the idea to people like me.
The use is totally appropriate for this venue.
True scientists go elsewhere to get their C / K and flame chemistry data in detail.
The important issue is a flame in microgravity. Don't lose sight of that.
Very cool
If you light a flame in a space station wouldnt the flame elongate instead towards the small tug of gravity wich is the earth? Thats what i dont get
that shows man should die for knowledge on basics such as water air and fire. great indeed is the person behind this mission.
Existe la posibilidad de que traduzcan al español los videos? Gracias
Podes leer en castellano las noticias en: ciencia.nasa.gov/
Sick burn!
I will like to have my birthday celebrated in that NASA space station. Candle burns in cool chemistry. Dr. Shyam
freaking awesome
I agree! I LOVE this channel! :))
I wonder why NASA has less views and subs than SSoHPKC who plays video games :P
They use it not to confuse people.
because most people know the references with Fahrenheit
°F seriously?
Amazing really
It's good to know they're still working on it since Skylab. They really need to make saving the world profitable or something. It's insane we have to think of it that way. The oil companies have always known they'd have to do something else for a living, but who knew they would do so much evil? (besides everybody with an active braincell) They need to go ahead and flip the switch already! I'm sure they'll do well in 3D printer materials.
The force of Earth's gravity does indeed act strongly on the space station. However, the space station is orbiting the Earth, which means that it is always in free-fall. Free-fall is what most people mean when they think "zero gravity". This vid does a better job of explaining: watch?v=-wIi4if5GUQ
Awesome....
Nice but «Poly-cyclic» not «poly-cylic» :-/
sounds cool.. atleast
So research in space might lead to a technology to decrease CO2 emissionsdown here on Earth?
Awesome!
Do you know why all matter same as energy forms spheres in space microgravity ?, well that's due to the Higgs Boson Particle Field.
Elementary my dear Watson.
Why use Fahrenheit in a science video o.O?
don't they use kelvin?
Get your on Government to do research and don't worry about what we use
Pretty cold ;)
wow...
That's less helpful than you'd think. It's useful for discussing the weather, but less so for calculating the efficiency of an engine or talking about the chemistry of a flame.
Most scientists and engineers will use Kelvin degrees for most technical applications. Physicists will occasionally go even further and use natural units with the Boltzmann constant set to zero.
The SI system is rather outdated tbh. It's complete crap for anything related to electromagnetism.
They're pretty close on nuclear fusion.
And now the topic is who can work for nasa ?? i thought we were talking about the units used for this video. (besides i meant different ethnic groups) whoever can get a green card or a citizenship if he or she is smart enough to be needed by NASA
Who can blame them, that's the easiest thing to do.
awsom
Science at NASA. Gotta love it.
It will always be harder to persuade them if you don't understand them. Despite the Supreme Court, Corporations are not human, nor moral. Agents of a business have a legal and (oddly) even a moral duty to maximize profits for the corporate stakeholders. To the extent this conflicts with the agent's human morals or duty to society, he is morally compromised. Where an obligate choice to do the 'right' vs the 'profitable' thing, both must have some commonality, for the business to serve 'us'.
Very interesting! But please use Celcius
Lol you would think they would know better than that
That will only happen when control is taken back by the people and away from corporations which have trillions of dollars invested in oil.
I was singing the chorus to the flame song in my head while watching this.
Pyrolysis, chemiluminescence, oxidation, incandescence.
vimeo. com/40271657
or search for "What is a Flame" by Ben Ames
Isn't the international space station not to far away from earth, so it should still be pulled towards earth, but it's not because of its' high velocity, making it orbit around earth, so if it stops or slows down it would fall down back to earth. Why in all of the videos in this channel, you say that the international space station has zero gravity when in reality it has most of the earths gravitational pull??
Very cool :)
but you are right i shouldn't include Canada xD
aren't going to help international relations, are they?
me gusta la Nasa porque me gusta estar actualizado
I wanna go into space! :D
You spelled homogeneous wrong.
沒中文說明~
because the rest of the world has copyright on Celsius or Kelvin ... lol
Because... Murica.
'Merica. Nuff said.
Ma man! Celsius not Fahrenheit
Isn't this "cool" type of fire a safety hazard? I mean; something on a manned spacecraft accidently catches fire. The crew uses the extiguishers, till there is seemingly no more fire. But then "cool" burning sets in, continuing to burn unseen, all the while giving off poisonous carbonmonoxide...!
14 Black Astronauts went to space since 1983. Just google it.
oops, replied to the wrong person, think I got my message across either way
north americans aren't most people you know, there are other countries -_-
this means all we think about f Space and energy far beyond the Small ways we have been thought the Universe uses all as it sees fit the wonderful willingness of Creation ~. ~'
well you are welcome :) you know they got nothing else to say when they start criticizing your grammar.