Thanks, electron flow just makes more sense than the flow of the lack of an electron. Hopefully I'll have some more stuff soon, I moved house in December and have been a little low on free time.
did the silicon carbide demo, wound up poting the carbide in some lead, and then poked it with a cat whisker made out of a safety pin. had to poke it in a dark room for a while to get any light.
Glad you got it to work, lead is a good idea for keeping a conductive grip on the carbide. I bought a bag of 100g of carbide crystals and only found 2 or 3 that produced any light.
Thank you, Nick. You really know how to break it down so well that you would have been a great teacher had you not chosen to become an engineer. I love your videos.
Glad your back. I watch for your videos everyday. Loved the the videos on ways to use common programs and/ or items to measure or see things differently. Will be watching for your next one. : )
Hey, sorry to make you wait so long. I have been meaning for quite a while to do a video on switching to GNU/Linux and all the software that I have come to use. Does that sound interesting at all?
I was just thinking of this channel the other day and wondering if you were still alive! 😆 Have you ever seen a deep uv AlGaN led? I read about them a lot but I've never seen one anywhere, even in video.
Do you fully understand it now? Would you be prepared to deliver a short 10 minute presentation to an audience of 15 new students and 3 subject-matter experts without any reference materials, that includes a question and answer session at the end?
3:31 "By choosing doping agents, … one can change the color of the led" this isn't correct, i'm afraid. Doping is a very minute addition of foreign atoms, in order to push the semiconductor into being of n-type or p-type. The energy of photons is determined by the bandgap, which is a property of the base semiconductor, and is only very slightly affected by doping. The doping to achieve a color change has to be quite extreme, at that point it's rather called "alloying". It is possible, see GaAs-InGaAs, where the bandgap can be changed by changing by replacing Ga atoms with In. en.wikipedia.org/wiki/Indium_gallium_arsenide#/media/File:InGaAs_Energy_band_composition.PNG
I totally whiffed that. I'm not able to correct the audio without re-uploading but I was able to removed the misinformation. It should update sometime today. Thanks for catching that.
Thanks! Sorry to bother you again, but I found another small problem: at 2:26, you said something like "wavelength of photons is proportional to the energy", it should be "wavelength is inversely proportional to the energy", or "frequency is proportional to the energy"
I'm hoping that the concept was clear to most people that the energy of the photon is related to the energy lost by each electron. If I make "story" posts on RUclips are you likely to see them? I would like to have future videos as accurate as possible, having viewer input would very much help with that.
More popular channels show their videos to patrons before publishing, and they apparently do pick up quite a lot of mistakes. Sci-show sometimes puts out a pinned comment with mistake corrections. I don't know what "story" posts are. Are they the "community" tab of the channel? No, I usually don't see them, I'm still using the old version of youtube website. The new version does show some of them on the home page, but not all of them.
Наука
I was wondering what happened to you. Great to see you back creating vids again.
I moved in December and have been doing a lot of house related work since then. I'm starting to catch up so hopefully I can post a little more often.
Nicely presented Nick.. Glad to see someone using electron flow and not hole flow LOL... Good to see you actively posting again.. Fred
Thanks, electron flow just makes more sense than the flow of the lack of an electron. Hopefully I'll have some more stuff soon, I moved house in December and have been a little low on free time.
did the silicon carbide demo, wound up poting the carbide in some lead, and then poked it with a cat whisker made out of a safety pin. had to poke it in a dark room for a while to get any light.
Glad you got it to work, lead is a good idea for keeping a conductive grip on the carbide. I bought a bag of 100g of carbide crystals and only found 2 or 3 that produced any light.
I like this style. Lots of info but very concise. Good Job
Thanks! Glad you liked it.
Thank you, Nick. You really know how to break it down so well that you would have been a great teacher had you not chosen to become an engineer. I love your videos.
Glad you liked it but I'm actually just an electrician.
your videos are fantastic, you deserve way more views!
Thanks, I just post things as I stumble onto them but I try to be concise and accurate. Glad you like them.
Glad your back. I watch for your videos everyday. Loved the the videos on ways to use common programs and/ or items to measure or see things differently. Will be watching for your next one. : )
Hey, sorry to make you wait so long. I have been meaning for quite a while to do a video on switching to GNU/Linux and all the software that I have come to use. Does that sound interesting at all?
Good work ! Thanks for sharing !
Thanks!
nice content
Thanks!
Nick. Did you know that you are exactly the kind of guy I would take on a mission to Mars. You can figure things out and that's really handy.
And I can grow potatoes!
I was just thinking of this channel the other day and wondering if you were still alive! 😆 Have you ever seen a deep uv AlGaN led? I read about them a lot but I've never seen one anywhere, even in video.
I hadn't heard of them before, I'll have to do some Google-Fu: www.eurekalert.org/pub_releases/2019-02/tu-uhe022219.php
Yay. you're back!
Hey, sorry it's been a while. Hopefully I will find time to post more this year.
@@NickMoore Don't be sorry, dude, I love this channel and happy to wait for whatever
LED home lights noticeably lowered my electric bill.
They are way more efficient at turning electrical power into light as long as they have a good driving circuit.
Hey Nick! Missed ya!
It's been a while but I'm hoping to post more often.
My kids claim your logo looks like a broken camera :D
I never thought of that before >_
I tried to tell them that it was a lightning bolt, but they remained convinced that it was a crack :P
I was thinking this today, driving home from work.
Well?
Do you fully understand it now? Would you be prepared to deliver a short 10 minute presentation to an audience of 15 new students and 3 subject-matter experts without any reference materials, that includes a question and answer session at the end?
3:31 "By choosing doping agents, … one can change the color of the led" this isn't correct, i'm afraid. Doping is a very minute addition of foreign atoms, in order to push the semiconductor into being of n-type or p-type. The energy of photons is determined by the bandgap, which is a property of the base semiconductor, and is only very slightly affected by doping. The doping to achieve a color change has to be quite extreme, at that point it's rather called "alloying". It is possible, see GaAs-InGaAs, where the bandgap can be changed by changing by replacing Ga atoms with In. en.wikipedia.org/wiki/Indium_gallium_arsenide#/media/File:InGaAs_Energy_band_composition.PNG
I totally whiffed that. I'm not able to correct the audio without re-uploading but I was able to removed the misinformation. It should update sometime today. Thanks for catching that.
Thanks! Sorry to bother you again, but I found another small problem: at 2:26, you said something like "wavelength of photons is proportional to the energy", it should be "wavelength is inversely proportional to the energy", or "frequency is proportional to the energy"
I'm hoping that the concept was clear to most people that the energy of the photon is related to the energy lost by each electron.
If I make "story" posts on RUclips are you likely to see them? I would like to have future videos as accurate as possible, having viewer input would very much help with that.
More popular channels show their videos to patrons before publishing, and they apparently do pick up quite a lot of mistakes. Sci-show sometimes puts out a pinned comment with mistake corrections.
I don't know what "story" posts are. Are they the "community" tab of the channel? No, I usually don't see them, I'm still using the old version of youtube website. The new version does show some of them on the home page, but not all of them.