I'm working in the bioimaging department of my university and electron microscopes are really fascinating! In the last decades, microscopy techniques have become so sophisticated that individual atoms can now be tracked for quite some time. Last year, scientists even managed to record two atoms bonding for the first time (would love to make a video about this myself in the nearer future). This might not sound revolutionary but just imagine, we slowly become able to really observe processes which have been only theoretically described!
Wouldn't you say that it would have been nice if they talked a bit about how the sample was prepared and how colors are added? I reckon Vox could roll over it in like 20 seconds to really add something insightful.
@@iuravi I agree to a certain degree, but I think 20 seconds is far from enough to explain such long complex process, sample prep and post coloring deserve a video each.
LOL! Bro, if they were able to actually beat this virus then they would have already done so. They're spreading false hope just like Donald Trump said this virus wasn't going to be an issue. This is what the government does to us, THEY LIE, LIE, LIE! There won't be a cure for a year, at most. Sorry to burst your bubble.
@@RedditNovelties thats what WHO said, we'll need to wait for at least mid 2021. some vaccines are on testing stage by now, but even if its done by next month or so they still need to prepare for mass production. it IS something that we can overcome, but we need time. worst thing that can happen in outbreak is a bad vaccine.
@@erraticbreakfast1249 The virus itself is only getting stronger & we are getting weaker with less & less resources. Us as a civilization are bound to be completely f***cked in the upcoming months. Mark my words!
As a health care worker who is dealing with covid patients daily, hearing that this can be tackeled almost made me cry. Thank you. I needed it after todays sift.
We see ourselves as masters of this planet, top of the food chain, captain's of the oceans, and explorers of space. A living organism 100nm small can bring a planet to its knees.
@Old Soul Humans cannot destroy the planet, they lack the power. But you probably meant civilization or most living things. Earth will barely feel a scratch from our actions.
I think it's education in general the more formal education a person has the better the person. I find that well-educated and well-read people are calm and not prone to belittling or anger.
@Ron H Yeah because most politicians ignore and dismiss them. The ones making "big decisions" aren't creating and researching solutions. These are the people who improve and saves lives, you'll be thanking them more and more.
I think it’s funny how he introduces the expert as “my colleague Liz’s dad,” it’s like when you’re a kid and you introduce your friends parents as the friend’s mom and dad.
Bexleby Starshine or when you specifically address them as “Ethan’s Mom” because you don’t know what else to say without sounding like some formal nerd
I'd like to add in 3:20 that colouring in SEM or TEM images can be deceptive because it tends to accentuate minute differences. We tend to prefer keeping these images in black/white for most authenticity
You can study kindergartens art classes, too. Those kids are so creative. I saw once on their hallways almost exactly the same pictures/drawings. So inspirational.
Thank you, Frank and Beth, for taking the time to share your knowledge with the Vox team. I'm thankful for everything you and your team are doing to help keep the human population alive. Keep up the good work.
One of the reasons that this Coronavirus is spreading quickly is that many people show no symptoms and many show no symptoms at first but then get sick. They can spread the virus during that time though. With the flu, you usually feel sick within a shorter time and people are in bed not spreading the virus. So, you’re pointing to something important about this virus.
Thank you, Vox for the very informative videos you publish regarding COVID-19. Some things I don't understand but your videos always explain everything. Thank you!
So kindergartens art classes, too. Those kids are so creative. I saw once on their hallways almost exactly the same pictures/drawings. So inspirational and "informative"
Your illustration of SEM need to revise at @2:33, SEM steer the focused electron beam by electromagnetic field across a small area of the sample and collect the reflective electrons vs time/(X,Y location of the beam) to get spacial resolution of image, not by moving the specimen in X, Y. You move sample only to change the area of interest in much later scales.
RE: where corona gets its name - they weirdly didn't mention that "corona" is Latin for "crown" - the halo of spikes around the virus particle represented by the points of a crown
Just guessing, but makes sense that the sun has a crown in the form of sun rays spewing from it's centre that resemble crowns or maybe crowns resemble sun rays. Oh well
It amazes me everytime to know that science have progressed so much. I mean we have means to look into such tiny particles and then experiment on those tinier spikes and make it useless. and it's mostly about last 200-400 years . we have come so far. and ofcourse too long to go. I love videos like these, they always inspire to read more about science and learn about world around us.
Freedom of information requests have been sent to major institution's world wide and they are saying they have no information about the virus or any proof of a virus
I just go through my day touching public door handles, gas pumps, you name it.. Touching my face and eating food without washing my hands.. I stay away from doctors and ALL forms of shots and meds.. 100% pureblood.. I dont even drink alcohol... Its been 40 years since I've been ill.. go figure.
Fun fact, some of those pictures weren’t taken with an electron microscope, but with a phase contrast microscope. A phase contrast microscope is less powerful but allows the viewer to actively see movement and view living organisms that would be impossible with an electron microscope.
Corona means crown which is what the outer layer of the sun looks like during an eclipse, as well as the outer layer of the virus looks like. so they both get their names from the same property, a ring around the main body
This is probably very rare on the internet, but you are ALL right. Corona in Greek means "crown"; and the solar corona is named like that because of its crown appearance during a solar eclipse.
Scientifically, things could be way more right if the scale-bars of the images were not removed. I have seen only a few ones that represent the image and the scale in the right way.
At this point in time, it's been a year since the pandemic began in America. There should be thousands of pictures of coronavirus under a microscope. But there's only a handful of them, and the majority of the pictures are computer animated.
Same thing with Ebola LOL! The only evidence of Ebola is from the image published in The Hot Zone novel. Any other image is basically mirrored and filtered with a different color.
That’s what you get when the US funds the military over science 🤷♀️ maybe there would be thousands of pictures if the US had thousands of electron microscopes but oh well ;)
Images from electron microscopes are grayscale/black & white. So researchers use a technique called pseudocoloring (it is used also in diagnostic radiology). Pseudocoloring can be done in imaging software like Adobe Photoshop (they advertise that usage/application since CS3).
Nothing in the image is a color because they are smaller than the wavelengths of visible light. So the color is assigned mostly arbitrarily. I assume there are general rules like make the virus in a color that stands out but I don't know for sure
there's no universal guideline for coloring, it's really done at the discretion of whoever is developing the image. in general, they'll assign contrasting colors, which makes the different features more distinguishable, especially for people with sight problems.
What we perceive as 'colour' is the light of a particular frequency reflecting off of it. So when we see a leaf as green, that means that the leaf absorbed most of the colours in the visible spectrum of light except the frequency of light corresponding to the colour green, which it reflected. Since, SEM's and TEM's use electrons, which have very high frequencies well beyond what humans can see and perceive as 'colour', these images are in greyscale. The colour is then added later to improve comprehension
So kindergartens art classes, too. Those kids are so creative. I saw once on their hallways almost exactly the same pictures/drawings. So inspirational and "accurate". Do you really believe that Santa Claus exist too ?
@@NeonNotch Yeah I get that, but electron microscopes can still show moving cells... like a video... why haven't they shown any actual shots and footage, other than generated images ?
Freedom of information requests have been sent to major institution's world wide and they are saying they have no information about the virus or any proof of a virus
Oversimplified explanation: in bats, this virus isn't usually that harmful. But now that it has jumped to humans, it is in a host it didn't evolve for, and causing excess damage.
TEAM VOX A humble request there is place called Kerala in Southern part of India it had made a remarkable fight against Covid ..... only .5% fatality though economically weak kept its 3.5 million population safe .There was an article in Washington post about this can u please make video about it .....
@@dewanandsahanidevi2242 Mind ur own business this is not ur private platform or ancestors property its a public platform and i post wat i feel posting so cheers .... i dont think fight against corona is small effort ..
I love how you weirdos get proven wrong repeatedly and instead of finally admitting you were wrong, you just change the conspiracy. 🤣 first it supposedly wasn’t real, and then you saw pictures, and now you’re angry it wasn’t a video? You’re a clown.
As someone who used to be an electron microscopist, and just finished giving a presentation on this, this video makes me smile seeing others getting to learn about this as well :)
i'm a geoscience undergrad and occasionally have gotten to use an SEM/BSE microscope for research and i have to say that there's nothing quite like it, if you ever get the change to get behind the wheel of one, take it!
I don’t like how people make jokes about this. If they were one of those people who had corona virus they wouldn’t be making a joke. People are dying at an alarming rate and I find it rude that people keep making jokes.
Too bad the video is not longer. It would be great to see the production of a vaccine from start to thw end. Detection-Electron microscope images- weakening the virus- production of vaccines-trials It would be great to see the whole process step-by-step covered by professionals in future videos.
all images from an electron microscope are computer generated because you cant see electrons it senses electrons bouncing off the cell and creates an image from the signals
Why are there multiple different images showing the virus has circular structures? This video is not one directly showing someone doing it themselves and producing results.
These images show a circular structure as well. The images are from an actual research institute, electron microscopy isn’t something you can easily do in 5 minutes
Would someone please explain to me what is the correlation between 400nm in electromagnetic spectrum to 100nm in virus size to be able to see the virus?
@kieroto @jimboy de juan I found this information. Scientists have worked out that a light microscope cannot magnify any object of the size that is half of its illumination source's wavelength. So that means that the half of the 400nm (the lowest point) wavelength for visible light is 200nm, and the concerned virus is ~100nm which is less than 200nm. That's why it is not possible for light microscopes to visualize viruses and that is the correlation between size and wavelength.
@@desmaidikemprai2759 indeed knowledge that seem believe very little visible on 200 nm if be might COVID-19 not visible under ~ 50 nm unlike others Virus ~ 100-300 nm.
Very interesting, So to develop vaccine we have to introduce instructions to immune system regarding response to particular protein? So like, the protein in a mixture designed to get the immune systems attention but not make it panic? Then immune system does the rest? Im fascinated how computer viruses have almost identical structure and behavior. Or does the antibody have to be developed and introduced so the body can disassemble and learn to make it? Im curious to see HOW they can map an entire genome and put it in a database then create molecules based on the genome Strange how a single cell can be so smart, it must have some kind of consciousness, almost like the laws of evolution/physics etc are a living force
Most people with panic attacks experience several of the following symptoms: "Racing" heart. Feeling weak, faint, or dizzy. Tingling or numbness in the hands and fingers. Sense of terror, or impending doom or death. Feeling sweaty or having chills. Chest pains. Breathing difficulties. Feeling a loss of control.
Technically it's all false images, they have to add color. The photos that use electron microscopes are the real ones. Just do some research on the photos.
The title is: "How images of coronavirus are made" - They explain the very basics on Electron Microscopy, which is the method that is used to create the images of the virus.
@@garyermann this is palpable incredulity that you need to have sympathy for. where do the imgs come from why is there no footnote on the internet about this!
@@soretip69 Taxes of course. However in the UK there are no medical bills or call out costs if someone needs medical attention. My original comment should of stated "Universal Health Care" instead of "Free Health Care". Thats my bad, because obviously taxes fund the NHS.
Shout out to Frank from OSU. I live on Ohio state campus and I am a patient at there .Thank you for all you do Frank. Thank you Beth also for bringing forth knowledge here also.
At a high level, the electron microscopes works by shooting electrons at the specimen which then “bounce off” of it and land on a detector. The number of electrons that land on a particular area of the detector determine its “color” and I believe dictate a range between 0 and 1 (where pitch black is the absence of any electrons and solid white is a LOT of electrons).
