My Dude. I say this with immense respect towards your dedication to educate people on the subject, but kindly consider putting a marker to indicate the error in the placement of the UV and IR bands, just so that no one is misinformed. Kudos, I truly appreciate your work

Problem with the graph, IR & UV are on their counterpart sides of visible light. Hoping for more

yep, Infrared and UV are switched, they're just like they sound, infra red (below red) in energy, or Ultraviolet (above Violet), in energy.

In my entire schooling, no one has explained to me as well as you have... I'm in university now..

I have an optics test next week, and I am confused about a bunch of things in the whole unit, so I started studying from the beginning of the unit to get a better understanding and clearly your videos are helping. Thank you!

At 1:53, infrared and uv should be reversed. Fact. - I’m a chemist.

like your shows, found it much more comprehensive than other shows

i think there is a problem ultraviolet radiation comes after x rays then visible area and then infrared

It was a very useful video for me. Thank you very much Sir

Excellent description Completely understand.

bozeman science has helped me a lot for my finals! i dont know how to thank you :')

yep, infrared and uv are switched in the right position :)

Excellent explanation, sir thanks

Hello. I have a question unrelated to the video. If I have a very high electromagnetic frequency could it be block be a low frequency like a red laser? Thank you!!!

Great job explaining this info. What’s the difference between EM radiation, and nuclear radiation? Is it just that nuclear radiation emits particles rather than waves?

Is Ultraviolet & infrared positions correct in your spectrum??? Plz check

Can you explain permeability of various matter and materials by various wavelengths?

There is a swap in the UV and IR zones at the spectrum!

You expain better this has really helped me❤

Appreciate the videos, but Infrared and Ultraviolet should be on opposite sides of the table.

This was so helpful....

Appreciatable

it is so helpful

Thank you so much!!!!

most comprehensive video ever

what will be after gamma rays?

Wait so why then are stars that give off different colors , different temperatures? So shouldn't blue since it is higher in energy be hotter?

So if I had prism windows can I be generating gamma rays in my room?.

Thank you very very very much

Q. Are all radiations are EM waves and is the vice-versa true?

do ultraviolet, x-rays and gamma rays pass through walls??

Thanks, helped me pass a chem test

Good video mate. 1 little error but these things happen

Hello Sir.. How many hertz does 5g release?? Thank you ❤️❤️

+Bozeman Science Is there a radiation canceling frequency Hertz range? Also could this help Fukushima, Pacific Ocean and Northern/Southern America ? I am looking for the inverse frequency. No one is doing much about this, I'd like to fix it. I have a few ways one is two large Bertha tunnel machines digging a tunnel from melted core to the magma chamber. * (I like this part) There is an inverse relation between the wavelength and frequency of electromagnetic waves. Electromagnetic radiation includes gamma rays, x-rays, infrared lights, visible light, uv light, microwaves and radio waves.

What is the nature of the electromagnetic field?

We learn visible light spectrum by a formula vibgyore it's full form will violet,indigo,blue, green, yellow orange and red. After it infra red and micro wave before it will ultra violet, xrays, cosmic ray and gama Ray's whose frequency is 3000 mega Hertz

graph is OFF

Also infrared should be switched it should be UV ...How did you miss that?

✌too good, but I expect more!

Why is it that some frequencies of radio waves pass through concrete walls, they wavelength is large and much bigger than the space it can get through, but visable light can't even though the waves are really small and have lots of energy e.g. powerful lasers. Then x rays that are weaker in energy can pass though concrete again, without harming the concrete.

Thank you, but IR & UV interchanged on the chart (@ 1:30/3:01)

0:45 to those who are wondering what :that"means, he discovered that the thermometer that is placed on the side is the hottest of all since it is exposed to Infrared

the best part was at 0:30===but many will not understand that ,why the temperature was hottest , with the thermometer kept outside the colors

I want to address that you have Infrared and Ultraviolet switched. Ultraviolet radiation is more energetic then visible light. Infrared is less energetic then visible light, therefore they are indeed switched.

See I need to know what are the side affects. I recorded 600 emf and my body was heating up badly. Can this be used as a weapon of some sort.

2016.10.29. Please amend (at the beginning of the video and repost) or correct the ERROR in your EM spectrum. The UV and IR are incorrectly reversed, so this information is very misleading. Too many people are going to get the wrong idea, especially if they are students using this video to study. Thanks!

Wave of what?

Yeah. You should take this video down until it is corrected. In general, your videos are very good. I recommend them to my students regularly. But please, remove this one until it is fixed.

U expained it all reverse. Infra red is on the red side not on blue side. On blue side it is UV, that is hottest.

helpful

I thought radiation only 'had' energy if the medium it is passing through decreases it's velocity. The closer and more rapidly the velocity is decreased to 0, the more rapidly and densly the total energy of the radiation is released. Aka, absorbed.

What is the source of this energy. I know that the source of visible light is the sun. But what about the other radiations.

Stopped watching when he put UV and IR in the wrong places

Hi and yes thank you .

you made physics home and dried :)

not as helpful as your other videos but that may be because i need to study it more in detail but still thanks for the explanation

Where are you live

Correct the IR and UV thing it's wrongly plotted

Does radiation in my house could ionize my cells?

My husband worked at Sutro Tower in San Francisco for 10 years for 10 hours a days and developed what doctors threw in a bucket as “Multiple Sclerosis” along with depression and other issues. He told me of a story previous to being married where he climbed on quarter of the tower placed a chicken there and it cooked in 15 minutes. Was he just pulling my leg?

Why you got so many microwaves though, isn't one like enough?!

Ultraviolet and infrared are supposed to flip!

This is like 6 years late but your graph around 1:46 is in error. I’m pretty sure infrared and ultraviolet need to be swapped?

Commendable

otherwise very helpful and friendly. 😃😃😃😃

for god sake you have reversed the visible light spectrum, at 1.34

Question for the physicists: would it be a risk to have (over ear, or even more closely to the brain: in ear bluetooth headphones)? I ask the physicists, as I no medical studies can have studied the long term effects of such bluetooth effect on the human brain, as it has become only prominent a few decades ago.

:D thx

Question: Wifi transmits 2.4GHz frequency which is so much higher than standard of human body such as brain EM, but why it is not harmful for our health ????

me watching the video for an essay and not understanding anything 👁👄👁

This really doesn't explains to me what is EM rarldiation.

UV -> VIS -> IR

So...wifi is bad for us?

So micro wave is safer than the visible light spectrum? I dont think so.

Ok, so microwave radiation really is safe then, thanks time for a frozen dinner.

Economic interests overshadows health risks

Increase wavelength decrease Frequency Increase frequency = increase energy As humans therefore, being exposed to higher frequency wavelengths is more harmful, else equal.

So I have a coworker that insists 5G is dangerous. Due to the high output of radiation from a 5G tower. I tried to explain that it's safe. But I'm going to ask some stupid questions anyway so he may read the answers. 1. Does a 5G tower emit dangerous levels of radiation? 2. Is said radiation being emitted from a radioactive source? 3. How does radiation from a radioactive source differ from radiation from an electromagnetic source?

Why these type of teachers are not India ???

Your diagram is the wrong way round

8 years and the LARGE mistake in the EMS diagram isn’t fixed? Come on… Even the description at 1:33 is incorrect. This is embarrassing, please fix. Cannot recommend channel with no error correcting in 8 years after multiple people request? And no… it was not helpful, now cannot trust the other videos.

Graph is wrong and misleading...

After not fixing this incorrect diagram for two years it makes me think this site is no longer being updated. Shame!

170 people recognize that this guy completely mixed up infrared and UltraViolet light. thereby even his historical anecdote is wrong. should literally be taken down and replaced.

Terrible explanation. You talked about how it's measured and different waves lengths but you didn't actually touch on the nature of emr. What is it? Particles moving? Some other force? What is the nature of light

not helpful sorry

I find these kinds of videos a little bit irresponsible using key trigger words like ionizing and non ionizing. There's a lot we don't know about the effects of wifi 2.4ghz level waves. Just because Thermal radiation research shows no CONSISTENT scientific evidence of damage to cells including DNA does not mean it's not happening. There is this idea that the actual wavelength from 4g cannot penetrate cell membrane and actually this is true. However, what they don't tell you is more about how vibrations from this frequency which by the way is INCONSISTENT depending upon a number of variables such as distance, initial connection, water vapour and the list goes on. These types of microwaves even at around 2.4 GHZ can change the spin and magnetic effect of protons and the extremely slow speed of electrons inside your cell through magnetic resonance. Here's where it gets interesting : let's take cells that have calcium ion channels in that open and close rather like the pupil of your eye and help regulate electron flow. The addition of microwaves disrupts the usual balance inside your cell including mitochondria, lysosomes, macrophages and so on and the space between them causing communication breakdown within the cell and eventually vibrations that build up and make your calcium ion channel so weak it breaks. To cut the story short your DNA strand become unprotected causing brain or body damage. Chemical information not being correctly sent from one cell to another. Finally the symptoms : cot death, still birth, Male and female infertility, epilepsy, weight gain, loss in bone growth, muscle atrophy, psychiatric problems ranging from add , depression, right through to schizophrenia, poor immune system ,tiredness, and sadly cancer and ovarian predisposition to cancer that are passed down from generation to generation. It's very sad but what can we all do when multi million dollar companies pay scientists to word their research in a favourable way??