Wow...you are a lifesaver sir...I have a class to teach in a few hours time and was having issues with differentiating them electrone microscopes. thanks
Great video. Exactly what I was looking for. Well explained in fairly short sentences, includes only the most important facts, easy to learn from and remember. I have only watched this video once and I can already say I memorised a lot of information. Good job!
Your videos are really good for revision: they contain all the important information summarised. Can you make a video on Biodiversity and Classification if you have time please? Thank you so much for your hard work.
Why can't people like you be my professors. Instead the snooty ones that are stuck on their research and give only 2 hrs of office hours a week!! p.s. I know this isn't a nice comment you don't have to reply but thanks for the lesson!
Useful to know that Transmission involves electrons passing through sample, Scanning involves reflected electrons. Most commonly, examiners will ask for differences between light and one other EM, or will ask which microscope was used to make a given image, and why.
Ah, the modest turnip; arguably the most underrated root vegetable, perhaps second only to the celeriac. Not sure how this relates to microscopy though!
The false colour works because the sample is stained with heavy metals, which change how many electrons are absorbed in certain regions. This works in both TEM and SEM. You are right that SEM involves measuring how many electrons are reflected from the surface, but as not all are reflected, that means some have been absorbed...by the heavy metals. Hope that makes sense?
Great, easy to understand. And not a robotic voice. An awesome British speaker.
Better than my textbook! thank you SO MUCH !!!
+sara tfkh Thanks for the kind words :)
Wow...you are a lifesaver sir...I have a class to teach in a few hours time and was having issues with differentiating them electrone microscopes. thanks
Thank you! that was really helpful, In fact it was so good I got 95% in my exam!
zAdversary you should get 100% easilly with this ved👊🏻
Weird Flex
Great video. Exactly what I was looking for. Well explained in fairly short sentences, includes only the most important facts, easy to learn from and remember. I have only watched this video once and I can already say I memorised a lot of information. Good job!
A highly comprehensible ,short narration.
Thank you so much, i have my physics test soon to determine what set i will be in for GCSE. You are a life saver. Set 1 here i come
I mean biology, sorry
Your voice is so nice, I could listen to it all day.... Also, thanks for the video, you've got a great lecture style.
+Chelsea McDonald Haha that's very kind! I'm glad you're enjoying my work!
You're doing a good job at explaining all the things in this topic . Thank u !
thanks mr. Pollock ,me and all my friends admiring your work.
ty so much this was so much better than the book I had to read
Wonderful; this is going to come in handy tomorrow in lab =]
+Caitlin MacLeod (Cydia Chick) Glad you liked :)
I love how you talk slowly, thank you very much :)
really detailled video,nice voice and easy to understand.This video really help me out man. thanks you
+Duc Tran You're very welcome.
currently studying btec biology and this video is absolutely perfect, thank you so much
Thank you so very much! This put my brain at ease with all the different types of microscopes. :P
Thank you very much, I was having problems to understand the difference between SEM and TEM, and this video helped me.
Thank you so much! You saved me from a bad grade!!
Thank you mr pollock greatly appreciated
Great. I now understand the difference between TEM and SEM. Thanks
really appreciate your hard work 👍👍👍😄
Thank you for this, it's very helpful.
mate ur amazing at ur job
i agreee dude
Your videos are really good for revision: they contain all the important information summarised.
Can you make a video on Biodiversity and Classification if you have time please?
Thank you so much for your hard work.
thanks bro you just saved my life
Why can't people like you be my professors. Instead the snooty ones that are stuck on their research and give only 2 hrs of office hours a week!!
p.s. I know this isn't a nice comment you don't have to reply but thanks for the lesson!
xXnicenessXx Glad you found it useful!
good job, dude.
Thanks! Helped me ace the 5 marker today!
Very useful information about microscopes thank u so much
No problem; glad it helped!
Thank you for the information it was really helpful. But further reading barcodes don't work. Do you have any other link for that?
ayy cheers man this made my homework easier and made me enjoy the PROPER expensive pens i have.
Who else is watching because you’re in a lesson or your revising
Exactly what I was searching for.
Great very informative.
Thankyou.
your video helped me a ton, thank you so so much
Great video!
This was great! It was so clear and straightforward! Thank you so much :)
Loved this video thank you for helping me in understanding the microscopes.
Great👌👌👌 You just saved me for my Bio test tomorrow😂👍
Excuse me; Do we add a digital color to the SEM ?!. Is that we call false image ?!
thanks so much forthe inspirtational tips. I wish you all the bets in the future.
thank you so much! this really helped me with my ap bio test:)
this was really helpful thankyou
nice explaination n video
+kirin hasim Cheers!
really good information!
Do we need to know how the actual microscopes work like the whole procedure of how image is obtained for aqa?
Useful to know that Transmission involves electrons passing through sample, Scanning involves reflected electrons.
Most commonly, examiners will ask for differences between light and one other EM, or will ask which microscope was used to make a given image, and why.
Mr Pollock I'm here for the physics. I doubt you need to know about electron's having wavelength (λ=h/p) which can be easily derived.
Aqa?
very informative! thank you :)
+TheKatHerrera Glad you liked!
Thank you so much for this video! It helped a lot :)
problem; happy to have helped! Follow me on Twitter @mrpollockbio
This was a very informative video. Thank you so much.
Appreciate that! Cheers!
Thanks for sharing
+Umair Khalid No problem!
Do we need to know the values of magnification and resolution for the exam?
Laura Moelker sure😒😒
Thank you so much!
+Sharon Meijer You're welcome!
5:55 nOICE
This is awesome!
So useful :)
Lol you got a text message at 0:49. Great Video
Thanks, this was great!
THANK YOU SO MUCH
Can this be applied to the 2017 specification?
yall Mrs. Diaz's class of 2021
thank you so much😊
+Aliyah Hussain No problem!
thank you this is so helpful!
LOL.... it's proper expensive. Is there an improper expensive?
KnowJesusKnowPeace yes there is. Mcdonalds is overpriced and overrated
@@hamsacc it's a dollar for a burger??? You're trippin
thank you very easy to understand
Thanks for your feedback...glad you found it useful!
couple of bugs and some pollen haha love it
What about the scanning probe microscope?
This is Brilliant !! Thank You :)
thnk you very much
Thanks prof
Can u explain me why we have false color SEM image plzzzz
Very clear
Thanks! Hope it helped!
Thank you
+sujata rai You're most welcome!
yo sick init dude
fo'sho'
THANK YOUU SOOOO MUCH !!!! :D
Glad I could help!
James Pollock do you like turnips?
Ah, the modest turnip; arguably the most underrated root vegetable, perhaps second only to the celeriac.
Not sure how this relates to microscopy though!
😂
@@MrPollockBiology probably some obscure reference
tysm love ur voice too..
Thanks sir
+Bibek Bardewa No worries!
Really helpful thanks, I heard that phone at 0:48 though! ;)
Well spotted :p Thanks!
Anyone else sent here from homework?
Me :(((
@@Rubix1676 XD
@@Rubix1676 have you done the homework?
Yes
@@Rubix1676 good for you
awesome thanks a lottt
+Sandra Abou Saad You're most welcome.
Also 5:50 dont u mean how many electrons are reflected?
The false colour works because the sample is stained with heavy metals, which change how many electrons are absorbed in certain regions.
This works in both TEM and SEM.
You are right that SEM involves measuring how many electrons are reflected from the surface, but as not all are reflected, that means some have been absorbed...by the heavy metals.
Hope that makes sense?
makes perfect sense thank you! Also can you please make a video on diseases of the heart?
Will try to get round to that one. Will be doing a new Q & A series starting around Easter.
my biology teacher told me to watch this
too goos we cant see specimen beyond the correspondence of 0.6micro meter wave leng if light . but we beleive in electron beam assists.
thaaankss
who is here from ms.vazquez bio class 2016-2017
Thanks
+The DJGamer88 No worries!
+Mr Pollock yah
Thanksssssss
precisely
Like if u here from 9Y1🤘🏼💦
The QR codes don't work anymore. :(
What is a specimen
+Shamima Ali The specimen is the thing that you wish to look at using the microscope.
Anything under about 300nm doesnt have colour anyway. Black and white is fine
Not all light microscopes are pass trough. Some bounch light on a surface. Usefull for metal studie
Help me
😂😂😂 "pretty cheap just under 1k"
+abdurahman ali a bargain!
I was confused about the kinds of microscope but now I'm not. All thanks for god and than you of course 😊
Hopefully I don't fail my biology test lol
Hi zain
Anyone else here for kings homework
Thank you! (◍•ᴗ•◍)❤
like if ur from mrs. Rodgers bio class 6th period