What is Infrared Radiation & Electromagnetic Spectrum? - [4]

In this lesson, you will learn what infrared radiation is, and how we can use it to visualize the heat signature of objects. We will discuss that infrared light is simply a part of the electromagnetic spectrum that we can't see with our eyes, because the photoreceptors in our eyes aren't receptive to the energy level of a photon in the infrared range. We will learn how William Herschel accidentally discovered infrared light by measuring the temperature of the different colors of sunlight after the light was split by a prism into the colors of the rainbow. Herschel found that the hottest part of the spectrum is actually outside the visible region, and we now call these infrared waves. We will also discuss blackbody radiation, and learn that all bodies at a given temperature emit radiation, including in the infrared.

[daveballman]

Great job. I'm 72 and love knowledge and learning new ideas. As a younger man I was a poor student but always curious. You have hit the sweet spot of teaching for struggling students with your patience, explanations and detail oriented presentations. Please continue your good work. I've a lot of catching up to do.

[bigfish]

I'm trying to learn here. I'm a construction worker who had a troubled past (difficult childhood & up bringing) so I never really paid attention in school. Now in my later years I've been trying to self-educate. I'm a slow reader, so I've learned to harness and take advantage of the wonderful power of the internet and YouTube. On multiple occasions throughout my childhood, myself and my parents were informed that I possessed an above average IQ despite my inability and unwillingness to participate class.
I've always been interested in why things are the way that they are. Literally everything. Why are we here, how did the universe and Life Begin, how are we able to see, what is fire, space, time, ETC, ETC, on and

Anyway thank you for sharing these videos. The videos that you share, as well as the videos of many other content providers on YouTube have helped me tremendously with educating myself and expanding my knowledge in my adult life.

I was a bit confused when you brought up Planck's constant. Just a suggestion, when trying to reach out to the lay person and explain what Planck's constant is. Instead of referring to it as just a number perhaps you could refer to it as a baseline number, a point of reference in which to compare other measurements to.
I figured it out but I was thrown off for a second.

[pralayghosh]

You are the best teacher I've ever had .Really appreciate you sir.

[brandonmaxon]

Jason. You are the man. I bought the full course bundle a little over a year ago and have been working through the material since. I can't express enough how much I appreciate your approach to teaching/learning, as well as your efforts to cover such a broad scope of knowledge in such careful and thoughtful detail. I watched the back of my eyelids through most of school so what you do is greatly assisting my confidence for the future. I hope you are doing well, I hope life is good to you, and I hope you know you have great purpose.

[loipham]

I love the way you ended the video. As usual, you always leave something to inspire other for continuous study and further more to explore undiscovered things of the universe. Because I guess you know for sure that human kind just know very little about the universe. Dark matter, dark energy and may be anti matter are still hard to understand concept to majority audience. It is so motivational that you mentioned at the end. Thank you!

[mundymorningreport]

I appreciate how you step through the basics to build a comprehensive understanding that can make sense of different perspectives and enable more accurate predictions when the distinctions you detail are shifted.

This brings to mind the origins of EM radiation and types of EM waves.

For example sunlight begins with plasma reactions as impulse EM radiation which is not the same as the chemical or stimulated emissions in our atmosphere (sine wave EM radiation) the singular type of radiation you cover here.

Past researchers have asserted that these waves have different propagation and impact on various materials (for example, without an atmosphere, stellar plasma impulses are invisible or transparent to our eyes without a transmuting atmospheric effect.

This behavior was replicated by Paul Pantone with his GEET reactor that used a pressure induced Z-pinch plasma reaction in steel tubes that became transparent when the reaction became strong enough (freaked him out, fearing his engine using the plasma for fuel would exceed the physical limits of operation, he also did not fully understand the differences of plasma reactions vs. chemical reactions which could not transform the chemistry the way he measured his reactor operating. He had a cold fusion, plasma reactor designed using tricks to optimize fuel efficiency (crazy luck using CIV in magnetic fields with polarized chemicals. Similar to how stars form.)

Detail how the wave shapes differ especially the magnetic fields and how they physical reactions differ. Tesla found EMPs can be totally unaffected by most matter, and extremely reactive with specific matter that resonated with very specific wavelengths (melting or exploding on contact) he also claimed the impulse transmissions were superconducting (how starlight can travel billions of light years).

[gerardkuipers]

I like the way you have explain this lesson

[paulatlin]

Wishing you and your family a Happy and Healthy New Year. Thanks for sharing your knowledge and enlightening the world

[delstanley]

Why is infrared radiation associated with heat even though the EM spectrum beyond it (including visible light) is also heat and even hotter? Perhaps because it is the part of the spectrum where we FIRST FEEL heat, even if we can't see it. The sense of touch before the sense of sight.

[jjsmallpiece]

Brilliant maths Jason - covering yourself with timing. 10minutes +/- 12minute videos. I look forward to the -2minute video.

[torgrimandersen]

You make math and physics fun to learn:-)

Hope you will create a follow up video of the Electromagnetic Spectrum where you use the equation for calculating the UV-index or estimating the amount of sun power that can be harnessed in a solar panel as a practis sample.

[patrickjamesangelesbadilla]

We're done with that lesson... I'm studying in the Philippines.. but thanks.. anyway I have a question about increasing decreasing increase decrease.. can that be the topic of your next video please🥰

[parfumharmonie]

Im your fan from Germany
Thank you for the great videos
They all very rich information.
Can you please do a video about the mechanism of the Aromachemicals in fragrance!

[yuusufliibaan]

Thank you teacher for teaching lesson is the best way keep going dear teacher i say always happy day🎁👑💯💕❤️🤞👌

[alexanderbleiholder]

Great video. Just a question: referring to your graph (wavelength distribution of the sunlight), shouldn’t be the highest temperature somewhere in between violet and red as there is a maximum between 400 and 700 nm?

[letelete]

Thank you! You explain everything crystal clear. I love your new project 10 Minutes science. Because of your clear explanation I have a passion to understand more and go deeper. I truly appreciate your work!

[aimafirm]

Isn’t red/infrared warmer because its frequency is more efficient at shaking the atoms? Like you can’t get a swing go high if you just keep on pushing and shoving it frequently - you need the right cadence there. Or microwave for heating food as another reference.

[tamarakepreyeomgbuayakimi.]

I love the fact this man has, or is expanding his YouTube channel in different areas of education 😁.

[tanikanakeyalewis]

Electricity Is Star Light, Inclusive of the Green Solar Spectrum Hue. With-Out Ultra-Violet Hues, Human Skin Color Appears "Earthy".

1. "Newton's colour circle combines the spectral colours red, orange, yellow, green, cyan, indigo, and blue-violet with the nonspectral colour magenta (a mixture of blue-violet and red light beams), as shown in the figure." Colour - Visible Spectrum, Wavelengths, Hues | Britannica
2. "The electromagnetic spectrum is the range of frequencies (the spectrum) of electromagnetic radiation and their respective wavelengths and photon energies...This frequency range is divided into separate bands, and the electromagnetic waves within each frequency band are called by different names; beginning at the low-frequency (long-wavelength) end of the spectrum these are: radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays at the high-frequency (short wavelength) end." Electromagnetic spectrum - Wikipedia
3. "The solar spectrum is the range of electromagnetic radiation emitted by the sun, extending from the ultraviolet to the infrared region. It is composed of photons with various wavelengths, which define the spectrum's shape and intensity. It can be defined in terms of solar radiation or solar irradiance." Solar Spectrum: Solar Radiation and Irradiance | Ossila
4. "Hue, or color, is the main part of what people mean when they say “skin tone.” Most human skin is some variation of orange, either brighter or darker, more red or more yellow. Hues in the skin can be a result of genetics, or can be affected by things like sunlight, ambient light temperature, and blood flow." What is Skin Tone? Post Production for Perfect Skin | PRO EDU

Respectively.

Tanika Nakeya Lewis, 6127

[Sumerian_Tamil]

Very interesting.. recently I published a book in Amazon Kindle on my Metaphysical Inquests into Nature: Mind and body as instruments.. as an outcome of that, now I have planned to start with Plasma.. your talks give me confidence that I would be able to do better progress..though I am a beginner on this subject.. one of my postulate is as human beings we have optimised our resources, faculties, senses, sensitivity..to maximize our survival.. now I understand our eyes and skins as what they do..reminded of boyhood lying on hot rock bed on a summer.. sensing heat and reaching dehydration..in a week my skin would go dark and would take three months inside office or cold place to regain some shades back..