why should we appreciate this over anything else ? you dont know if he typed it or copy and pasted it and this leads to why why are you saying this? im truly curious
One thing you failed to point out is the fact that it is not the light that is hot, it is the object that emits the light that is hot. When Herschel did his experiments, he was not measuring the heat of the light itself. rather he was measuring the heat of its source; in this case the Sun. He may not have understood this at the time, but the hotter an emitting object is the more light it emits, as the light grows in intensity it's infrared light does as well. The more intense the infrared light is, the more it will heat a blackened surface. A true black surface would absorb all light and re-emit it as infrared light. all other light gets converted to heat in this absorption, so the brighter a light source is, the hotter the absorbing surface will become. In case you don't know this, even the other wavelengths of light caused the temperature of the thermometers they were hitting to rise. So in white light you have to know that the temperature of an emitting source is a combined temperature caused by all the light being emitted.
If infrared light is of a lower energy part of the wave length, why is it hotter than visible light? I can't understand why the temp drops as the wavelength becomes more energetic.
@@slooob23 Simple really, the more energetic something is, the quicker it can be converted to light and escape its source. A surface that can absorb light energy will absorb the infrared light first, as it is the easiest to absorb. So that surface will continue to increase in temperature so long as it can contain the generated heat. When it reaches its own temperature limit, the stored energy will cause one or more events to happen to that surface, and the release of energy will be one of those things, in the form of mostly infrared light.
Neutrinos? Do they fall on the light spectrum ? I understand they've been photographed in large pools of water underground and they are coming at us from all directions like a cosmic soup left over from the Big bang? My late brother and I used to sit and talk about these things for hours on end. They legalized medical cannabis so I can think about this stuff all day long. Black holes that suck in light! So some extreme forms of gravity such as black holes is a force stronger than light and mater? Understand that planets are made buy gravity making all planetary bodies spherical except for that one strange one that's shaped like a football on the kuiper belt with a Moon of many that looks like a walnut? I guess the question I'm asking is which came first gravity or light, or are they intertwined in the black matter? My brother and I were talking about string theory 40 years ago but we didn't know what to call it. He had a 160 IQ in high school,. I told him he was the smartest dumbass I'd ever seen, damn I miss having an intelligent person to talk to. I want to roll up another one and think about pulsars,,, if the black hole was big enough would it consume a pulsar??? It would probably depend upon the ratio of black hole to pulsar LOL thank you for your time
This really helped me with my reporting, it really made me understand and enabled me to ellaborate it more to my teacher and classmates which resulted to good grades
So considering that infrared is beyond the visible light spectrum yet can be split by a prism, does this mean that gamma rays, x-rays, microwaves, and radio waves are also split like the light we can see? Is there a band of microwaves just beyond the band of infrared light?
that's a great explanation👌👌but i have a question i.e. red colour waves have more wavelength , less frequency and hence less energy than violet colour then how it is more warmer than violet??
the higher the frequency more energy but energy doesn't necessarily mean heat, take microwaves for example even a higher wavelength then IR and it's possible to warm up food when the source is strong enough or you can share information between devices with microwaves it's just a matter of how you use it
2 things I don't understand: - why are lower energy wavelengths hotter? Seems like lower energy should be cooler. - what actually causes hot objects to emit infrared radiation?
1. Wavelength invervesely proportional to energy the lower the wavelength the more energy it would have . 2.The more hotter the body is the more the electrons excite and When the electron transits from an excited state to its lower energy state, it will give off the same amount of energy needed to raise to that level. This emitted energy is a photon.so the more hotter the object the more it emits . Im not exactly sure this is 100% correct
I have a feeling that in the future (if we make it that far) science will feel like magic, and magic and science will be synonyms, I know it sounds stupid, sorry to dare, but for me the radio, WI-fi and electricity are amazing discoveries, imagine you can time travel to middle ages and explain how you can communicate to another person without any kind of cable, you will be considered a witch. "What other aspects of our universe are we ignorant of just because we can't see it and haven't blindly stumbled upon it yet?"
These videos are awesome. One thing that confuses me is if energy density increases as you move towards ultraviolet, why does temperature increase as you move towards infrared? Also wouldn't that mean that radio waves should burn us, or does that heat energy fall off somewhere? I might lose some sleep over this one XD
This is an excellent question and I was struggling with if I should include it in the video. The short answer is that the sun doesn't blast out all wavelengths equally. Take a look at this: en.wikipedia.org/wiki/Sunlight#/media/File:Solar_spectrum_en.svg Notice that the peak is in the visible. UV falls off dramatically. Infrared is huge and is the bulk of the tail. You should be looking at the area under the curve here. So, each individual photon of UV carries more energy than each photon of infrared, but the sun sends out a LOT more infrared photons (or waves if you prefer to think about waves). So, the thermometer is getting more infrared radiation hitting it because more IR photons are hitting it. Another factor is that our atmosphere blocks most UV so most of it never reaches the ground anyway, while a good deal of the visible and infrared comes through. Hope this helps! Really great question.
@@MathAndScience Yeah but below infrared is microwaves right? So I'm saying why microwave heat so much if there is so little energy in them. I would really like to know it really bothers me. Lol. Sorry for my bad English it is my second language.
ツTalツ I think we have a hard time understanding the intensity/brightness of wavelengths outside of the visible spectrum. The heating of the food is caused by the intensity/volume/brightness of the microwaves ie the number of photons hitting the food per second. You could heat the food with other spectrums of light if you hit it with a comparable intensity of that light. For example, a consumer microwave can use 1000 watts of electricity. If you put a 1000watt light bulb in the box, it would also heat the food quickly. The reason we use microwaves is not that they have more energy to heat food. It is because the microwaves can penetrate about 1cm into the food and heat it from the inside. This allows you to heat the food quickly without burning the outside of the food. Also the microwaves are easily contained within a thin metal cage. See Faraday cage. This allows easy energy/heat containment. Which is important for avoiding fires. Can you imagine how hot a 1000W bulb would get? Most of that energy would go out into the environment and would not be captured by the food. I hope this helps someone. I found it a confusing subject as well.
@influenz99 Hi, I’ll try! A photon of Ultraviolet radiation has a lot more energy than a photon of Infrared, but the total energy has to take into account the number of photons as well. Whats a photon?, its particle representing a quantum of light or other electromagnetic radiation, I hope this helps. Cheers
How can energy be present on both ends of the spectrum? Violet contains the lowest heat signature...but gamma ray is a concern for our health? What am i missing?
Exactly, this is annoying me too. The only thing I can think of is that maybe infrared is more efficiently absorbed by a surface while a large portion of visible light energy is reflected.
The air that is not impeded by the prism is, naturally going to be warmer. Like our skin, submerged in pool water is cooler than that above the surface.
So microwaves aligned or phased together form a kind of laser in that spectrum, is that radar? And how do we form laser radar. Explain acousto-opitcal cells and laser radar
Great topic! How many things are we looking at and not seeing. Transients are plentiful on this planet but humans being the knuckle dragging cavemen that we are usually veiw them as a disadvantage. For instance lets say water hammer. Some see it as a shaking noise making menace that sometimes ruins systems designed to hold or distribute liquids. We will design ways of stopping it instead of applying it as a means of pumping the liquids higher and more efficiently than other methods. How can so many intelligent individuals have absolutely no idea of the what and how that is responsible for everything we see?
Fantastic content but You should have a search engine for your videos. They are so many at finding a specific video is not easy. I have tried to search on integrals and basic maths, sets no success.
But blue flames are hot than red flames. It’s a fact when fire changes colour from red to orange to yellow to blue it gets hotter, so blue is hotter than red. And how did they tap into infrared, how do they make it?
@DFM it doesnt matter if the red stars burn longer than blue stars. Her point is why red is hotter than blue because blue stars are way more hotter than red star
Is this statement true or false? At a cold front, cold air quickly pushes under warm air, causing strong winds and precipitation -- often thunderstorms.
Why not say how it is produced, no effing professor says how infrared is made, is it from electrons falling down to lower orbits or just a property of atoms?
![What is Infrared Radiation & Electromagnetic Spectrum? - [4]](http://i.ytimg.com/vi/PHDiXiEc9ro/mqdefault.jpg)
![What is Infrared Radiation & Electromagnetic Spectrum? - [4]](/img/tr.png)
Can we also appreciate how he typed everything he said in the description?
why should we appreciate this over anything else ?
you dont know if he typed it or copy and pasted it and this leads to why why are you saying this? im truly curious
One thing you failed to point out is the fact that it is not the light that is hot, it is the object that emits the light that is hot. When Herschel did his experiments, he was not measuring the heat of the light itself. rather he was measuring the heat of its source; in this case the Sun. He may not have understood this at the time, but the hotter an emitting object is the more light it emits, as the light grows in intensity it's infrared light does as well. The more intense the infrared light is, the more it will heat a blackened surface. A true black surface would absorb all light and re-emit it as infrared light. all other light gets converted to heat in this absorption, so the brighter a light source is, the hotter the absorbing surface will become.
In case you don't know this, even the other wavelengths of light caused the temperature of the thermometers they were hitting to rise. So in white light you have to know that the temperature of an emitting source is a combined temperature caused by all the light being emitted.
The prism impedes the sunlight, therefore it is cooler than the ambient light.
shut the fuck up
If infrared light is of a lower energy part of the wave length, why is it hotter than visible light? I can't understand why the temp drops as the wavelength becomes more energetic.
@@slooob23 Simple really, the more energetic something is, the quicker it can be converted to light and escape its source. A surface that can absorb light energy will absorb the infrared light first, as it is the easiest to absorb. So that surface will continue to increase in temperature so long as it can contain the generated heat. When it reaches its own temperature limit, the stored energy will cause one or more events to happen to that surface, and the release of energy will be one of those things, in the form of mostly infrared light.
Neutrinos? Do they fall on the light spectrum ? I understand they've been photographed in large pools of water underground and they are coming at us from all directions like a cosmic soup left over from the Big bang? My late brother and I used to sit and talk about these things for hours on end. They legalized medical cannabis so I can think about this stuff all day long. Black holes that suck in light! So some extreme forms of gravity such as black holes is a force stronger than light and mater? Understand that planets are made buy gravity making all planetary bodies spherical except for that one strange one that's shaped like a football on the kuiper belt with a Moon of many that looks like a walnut? I guess the question I'm asking is which came first gravity or light, or are they intertwined in the black matter? My brother and I were talking about string theory 40 years ago but we didn't know what to call it. He had a 160 IQ in high school,. I told him he was the smartest dumbass I'd ever seen, damn I miss having an intelligent person to talk to. I want to roll up another one and think about pulsars,,, if the black hole was big enough would it consume a pulsar??? It would probably depend upon the ratio of black hole to pulsar LOL thank you for your time
This really helped me with my reporting, it really made me understand and enabled me to ellaborate it more to my teacher and classmates which resulted to good grades
me too haha
I don't even know how 10 minutes 58 seconds went really awesome sir 🙂
So considering that infrared is beyond the visible light spectrum yet can be split by a prism, does this mean that gamma rays, x-rays, microwaves, and radio waves are also split like the light we can see? Is there a band of microwaves just beyond the band of infrared light?
This channel is a life saver, been watching your videos since I was like in grade 4 or 5 🤞
If you don't mind me asking, how are infrared bulbs made/produced?
Thank you very much for uploading this video!
Kind regards, Dan George
that's a great explanation👌👌but i have a question i.e. red colour waves have more wavelength , less frequency and hence less energy than violet colour then how it is more warmer than violet??
I'm tired seeing this error on the internet.... Even on khan academy they're commiting this error
the higher the frequency more energy but energy doesn't necessarily mean heat, take microwaves for example even a higher wavelength then IR and it's possible to warm up food when the source is strong enough or you can share information between devices with microwaves it's just a matter of how you use it
there'd a reason ir is known as heat rays...
2 things I don't understand:
- why are lower energy wavelengths hotter? Seems like lower energy should be cooler.
- what actually causes hot objects to emit infrared radiation?
1. Wavelength invervesely proportional to energy the lower the wavelength the more energy it would have .
2.The more hotter the body is the more the electrons excite and When the electron transits from an excited state to its lower energy state, it will give off the same amount of energy needed to raise to that level. This emitted energy is a photon.so the more hotter the object the more it emits .
Im not exactly sure this is 100% correct
@@cookwiththecook1343 sounds right. Thanks!
@@fusion9619 no probs
Sorry for late reply ✌️
this was a very interesting presentation, thanks for enlightening me! I would like to understand the healthful aspects of infrared better.
Jason Gibson is the ultimate nerd. But the type of nerd that makes us all envious of nerds, and wanting to become one ourselves.
Nerds unite! Thanks so much!
I have a feeling that in the future (if we make it that far) science will feel like magic, and magic and science will be synonyms, I know it sounds stupid, sorry to dare, but for me the radio, WI-fi and electricity are amazing discoveries, imagine you can time travel to middle ages and explain how you can communicate to another person without any kind of cable, you will be considered a witch. "What other aspects of our universe are we ignorant of just because we can't see it and haven't blindly stumbled upon it yet?"
tbh i love the way u explain its really easy to follow up
Thanks a lot for the video. Thumbs up
I enjoyed this a lot ..nice job plz post more videos on inventions...regards and love from India😃👌👌
Thank you very much, and I will!
Are u subscribed to PewDiePie or t-series??????????????????
@@cheesecakegaming6056 How immature.Do you ask that to anyone who mentions india 🤣🤣
How insightful and cause for appreciation and reflection (pun intended). Thank you!!! 👏
Why then in terms of color temperature, the blue color has higher temperature in K than the red color?
Good stuff here my dude
These videos are awesome. One thing that confuses me is if energy density increases as you move towards ultraviolet, why does temperature increase as you move towards infrared?
Also wouldn't that mean that radio waves should burn us, or does that heat energy fall off somewhere? I might lose some sleep over this one XD
This is an excellent question and I was struggling with if I should include it in the video. The short answer is that the sun doesn't blast out all wavelengths equally.
Take a look at this:
en.wikipedia.org/wiki/Sunlight#/media/File:Solar_spectrum_en.svg
Notice that the peak is in the visible. UV falls off dramatically. Infrared is huge and is the bulk of the tail. You should be looking at the area under the curve here.
So, each individual photon of UV carries more energy than each photon of infrared, but the sun sends out a LOT more infrared photons (or waves if you prefer to think about waves). So, the thermometer is getting more infrared radiation hitting it because more IR photons are hitting it.
Another factor is that our atmosphere blocks most UV so most of it never reaches the ground anyway, while a good deal of the visible and infrared comes through.
Hope this helps! Really great question.
Oh okay that makes a lot of sense. Thanks for the answer and the quick response. Looks like I won't lose sleep after all
@@MathAndScience
Yeah but below infrared is microwaves right? So I'm saying why microwave heat so much if there is so little energy in them. I would really like to know it really bothers me. Lol. Sorry for my bad English it is my second language.
And blue flame is hotter than red flame.
ツTalツ I think we have a hard time understanding the intensity/brightness of wavelengths outside of the visible spectrum. The heating of the food is caused by the intensity/volume/brightness of the microwaves ie the number of photons hitting the food per second. You could heat the food with other spectrums of light if you hit it with a comparable intensity of that light. For example, a consumer microwave can use 1000 watts of electricity. If you put a 1000watt light bulb in the box, it would also heat the food quickly. The reason we use microwaves is not that they have more energy to heat food. It is because the microwaves can penetrate about 1cm into the food and heat it from the inside. This allows you to heat the food quickly without burning the outside of the food. Also the microwaves are easily contained within a thin metal cage. See Faraday cage. This allows easy energy/heat containment. Which is important for avoiding fires. Can you imagine how hot a 1000W bulb would get? Most of that energy would go out into the environment and would not be captured by the food. I hope this helps someone. I found it a confusing subject as well.
everything will be much easier to detect once we keep going beyond the gamma rays and radio waves.
good point
Thank you for your effort and time
Your channel is worth watching
Great video!
THE CHART OR,GRAPH IS BACKWARDS BUT,EXCELLENT EXPLANATION.
I have trouble understanding why infrared is hotter than ultraviolet, given the fact ultraviolet is packing way more energy?
@influenz99 Hi, I’ll try! A photon of Ultraviolet radiation has a lot more energy than a photon of Infrared, but the total energy has to take into account the number of photons as well. Whats a photon?, its particle representing a quantum of light or other electromagnetic radiation, I hope this helps. Cheers
@@therealOssie Interesting. In short, are you saying that a source of infrared light emits more photons than a source of ultraviolet light?
This really help me to prepare for my exams🤔🤔
I really appreciate it!
Jason, MathAndScience.com
Great information!
Thank you so much for this video
Great demo
Thanks
How can energy be present on both ends of the spectrum? Violet contains the lowest heat signature...but gamma ray is a concern for our health? What am i missing?
Nice explanation,thanks
How or why is infrared light hotter than visible light when it has a longer wavelength and lower energy than visible light?
Exactly, this is annoying me too. The only thing I can think of is that maybe infrared is more efficiently absorbed by a surface while a large portion of visible light energy is reflected.
Thanks that was a great explanation
nice explanation sir
The aliens can be among us. We just dont see them ;) Thanks for the explanation. Great job! 👍
Thank you!!
awesome explanation thanks
Nice Video....
How can it carry less energy and yet be hotter?
Thanks Sir..I really enjoyed a lot...It was quite informative 😊😊
The air that is not impeded by the prism is, naturally going to be warmer. Like our skin, submerged in pool water is cooler than that above the surface.
Thank you so much :)) ))
So microwaves aligned or phased together form a kind of laser in that spectrum, is that radar? And how do we form laser radar. Explain acousto-opitcal cells and laser radar
IR light is not always giving off from heat.
Great topic! How many things are we looking at and not seeing. Transients are plentiful on this planet but humans being the knuckle dragging cavemen that we are usually veiw them as a disadvantage. For instance lets say water hammer. Some see it as a shaking noise making menace that sometimes ruins systems designed to hold or distribute liquids. We will design ways of stopping it instead of applying it as a means of pumping the liquids higher and more efficiently than other methods. How can so many intelligent individuals have absolutely no idea of the what and how that is responsible for everything we see?
10:20 we've already learned everything.
No
Were farrrrr from knowing everything buddy
MODULE BROUGHT ME HERE"
The stuff you find on the internet. Mind blown of AWE
Fantastic content but You should have a search engine for your videos. They are so many at finding a specific video is not easy. I have tried to search on integrals and basic maths, sets no success.
Ridge line is probably hot because it's not vented not necessarily to do with insulation.
Such a good video!!!💣💪🏼👈
I really appreciate it!
Get our Free App and View all Lessons!
www.MathTutorApp.com
So please explain why the sky is blue and not violet should it not be violet?
Why is this info classified?
Love from india
wow i love it. Thanks a lot. By the way i think the first picture was an airplane not a ship.
How can infra red light be detected is there any device which could detect infra red?
Lots of things, even your skin. Night vision goggles?
What about Aether, Counterspace and the Inertial plane?
But blue flames are hot than red flames. It’s a fact when fire changes colour from red to orange to yellow to blue it gets hotter, so blue is hotter than red. And how did they tap into infrared, how do they make it?
@DFM it doesnt matter if the red stars burn longer than blue stars. Her point is why red is hotter than blue because blue stars are way more hotter than red star
Is this statement true or false?
At a cold front, cold air quickly pushes under warm air, causing strong winds and precipitation -- often thunderstorms.
Thanks
Awesome ;o
Do any one know the methods to record infrared frequency
Well hopefully with the James Web telescope we will be able to see a whole lot more…
what does the prefix infra mean
Darren D below
Hello how can I communication with you
This is fukin amazing Thanks for this video!!!!!!!!❤❤
Him having the extra thermometer wasnt an accident lmao it was a control.. basically the exact opposite of an accident.
When it's not on a color. Wouldn't that color be black.
why would red be hotter then violet if violet is higher in energy''?
James worley it is magnetic and electric photon waves
skuyla na ian
@@solaris5524 english
how infared hotter than visible light
Yoooo wasnt this on cosmos
How can violet be colder then red, we all know that violet has more enrgy than red 😵😵😵😵😵😵😵😵😵💫💫💫????????????????????!!?!?!?!???
9:47 - Jesus, God, heven, hell, angels, demons, and the holy Spirit
Why not say how it is produced, no effing professor says how infrared is made, is it from electrons falling down to lower orbits or just a property of atoms?
I can see infrared a little bit. I need to be in a very dark room to see it.
Thank you so much