Dan Gelbart is the finest example you’ll find of someone who blends fundamental theory with practical application. If you want a definition of what a true “Engineer” is, it’s him.
Good job TH-cam algorithm. I love me some more Dan Gelbart. Edit: That was an excellent presentation. I was especially awed by how Dan handled the student's guess regarding the lens question. When confronted with a 'solution' that isn't inline with the answer book, most teachers would just say it was wrong. Yet Dan has so much insight into his expertise he was still able to explain why mirrors aren't the solution with excruciating detail all without being pretentious. Can't wait to hear more from Dan Gelbart.
Yeah, I was struck by that too. It was very interesting and informative to me as well; I hadn’t known about the higher accuracy constraints for mirrors or the reason why. Also, even though I knew about using positive and negative lens elements to cancel out chromatic aberration, I didn’t really understand how you could do it without losing optical power.
We need moar Dan Gelbart! UBC, please, begging you, if you have ANY more material from DG, please post it on YT :) Pretty please! (I have watched all of the 18-part tutorial on Prof. Gelbart's own channel, and all of the other videos too, several times over. Just can't get enough! )
Yeah, that was especially interesting. Tricky to get the balance right between the shaded pole and the main ones. I’d also expect it to run pretty hot when in use, but I guess the super-heavy copper on the shading winding helps minimize the losses.
@@DEtchells dear Dave that's why he's Dan gilbart. Quite an original layout. Somehow we always assumed that shaded pole is tied to a rotor. But original thinking takes one out of the box. Absolutely fantastic 🙏🙏 and on the lighter note i should be exempt from any exam in all of Dan's institutions😁😁😁😁😁.. thanks for your reply please
The guy that came with the idea of the electromagnet that attracts copper is/was Leonard R. Crow. He published an small blue book titled "Design, Construction & Operating Principles of Electromagnets for Attracting Copper, Aluminum & Other Non-Ferrous Metals" in 1951. Not mentioned in Gelbart's presentation is the fact that the piece of copper or aluminum to be attracted has to have a certain shape. Too small, too big, too long, etc. and it won't work.
Great presentation from a very talented speaker! Really enjoyed all his videos that I have found so far. Recommend his TH-cam channel as well. Being an EE working with small startups myself I really appreciate Dans knowledge and way of thinking about development and inventing.
I was picking up toys with my kids a few months ago, and they asked if I could make a magnet that could pick up plastic Legos... I said no, then kept thinking about it until I came up with a solution. I was very excited and told them how inspirational they were. For what it's worth, the (unbuilt) solution I came up with doesn't involve using magnets at all, but instead would just fake it using machine vision and quick little sticky grabbers or something.
im looking for a book comprised of engineering problems that were creativey solved and where explenatio of solution is pressented. i couldnt find one for a while that would be aimed for engineers rather then normal mortals.
The answer to avoid the test could be, that we are dealing with an electro magnetic field not just magnetic field, the electromagnetic field has 2 modalities as its name says (magnetic and dielectric), all materials interact with these fields some more with the magnetic and some more with the dielectric when directly exposed to them. In this case the osilating magnetic field is generating a current in the cooper ring, that can't flow so I will expect this ring to heat up but as soon as you bring closer the cooper plate this current generates a week magnetic field in the cooper which is attracted by the magnet, if instead of a cooper plate we bring a unifiliar coil connected to a small light led it should turn on by inductance.
46:50 People cant afford to pursue ideas these days. You can invent something in your 20s but not be able to afford to act on it till your 30s or 40s. At which time you're expected to be starting a family and buying a house...
If you have ideas to pursue I don’t think you should give up on the assumption that it would be unaffordable. Many things are much cheaper these days compared to historically. And plus, good ideas are often strongly informed by the cost and availability of parts/materials
@@andrewphillip8432 I'm not saying the problem is that products are expensive. I'm saying peoples salaries are so low that they literally cant afford to pursue ideas, which is exactly what big biz wants because they you'll have to go to them for investment...
@@beachboardfan9544 I assure you this: there is no shortage of money in the world. If you have a good idea then you will find investors. Of course, what you said is spot on. Money is scarce for regular people. This is by design. In capitalism there are things like "economics of scale", people with more resources will win by design. But don't give up. Hope is the last to die.
@@spoot Maybe you are right! But at least I know they try to screw us by fear! I will not fall for it! Everything you see happening right now is fearmongering!
New Dan gelbart lore?! I’m in
The man, the myth, the legend.
Dan Gelbart is the finest example you’ll find of someone who blends fundamental theory with practical application. If you want a definition of what a true “Engineer” is, it’s him.
Good job TH-cam algorithm. I love me some more Dan Gelbart.
Edit: That was an excellent presentation. I was especially awed by how Dan handled the student's guess regarding the lens question. When confronted with a 'solution' that isn't inline with the answer book, most teachers would just say it was wrong. Yet Dan has so much insight into his expertise he was still able to explain why mirrors aren't the solution with excruciating detail all without being pretentious. Can't wait to hear more from Dan Gelbart.
Yeah, I was struck by that too. It was very interesting and informative to me as well; I hadn’t known about the higher accuracy constraints for mirrors or the reason why. Also, even though I knew about using positive and negative lens elements to cancel out chromatic aberration, I didn’t really understand how you could do it without losing optical power.
I’ll watch anything with dan gelbart
SO glad the algorithm surfaced this for me, I immediately watch anything from Dan Gelbart the moment I stumble across it :-)
One of the best lectures I’ve listened to all year. This man is brilliant
Bussin
@@cylosgarage you're not so bad yourself man.
@@adammontgomery7980 thank ya brother
Any class he teaches, I'm signing up for.
We need moar Dan Gelbart! UBC, please, begging you, if you have ANY more material from DG, please post it on YT :) Pretty please!
(I have watched all of the 18-part tutorial on Prof. Gelbart's own channel, and all of the other videos too, several times over. Just can't get enough! )
i will never be as cool as dan gelbart's watch
The electromagnet - is this an exmple of a shaded pole. The current in the shaded area will lag
Yeah, that was especially interesting. Tricky to get the balance right between the shaded pole and the main ones. I’d also expect it to run pretty hot when in use, but I guess the super-heavy copper on the shading winding helps minimize the losses.
@@DEtchells dear Dave that's why he's Dan gilbart. Quite an original layout. Somehow we always assumed that shaded pole is tied to a rotor. But original thinking takes one out of the box. Absolutely fantastic 🙏🙏 and on the lighter note i should be exempt from any exam in all of Dan's institutions😁😁😁😁😁.. thanks for your reply please
The guy that came with the idea of the electromagnet that attracts copper is/was Leonard R. Crow. He published an small blue book titled "Design, Construction & Operating Principles of Electromagnets for Attracting Copper, Aluminum & Other Non-Ferrous Metals" in 1951. Not mentioned in Gelbart's presentation is the fact that the piece of copper or aluminum to be attracted has to have a certain shape. Too small, too big, too long, etc. and it won't work.
Prof you are great. I just discovered your videos. Love them all. Thank you Sir.
GIVE ME MORE DAN GELBART!!!!...
It was all fascinating, but the most important part of his talk (IMO) is in the "Knowledge" and "Invention" sections.
Great presentation from a very talented speaker!
Really enjoyed all his videos that I have found so far. Recommend his TH-cam channel as well. Being an EE working with small startups myself I really appreciate Dans knowledge and way of thinking about development and inventing.
I was picking up toys with my kids a few months ago, and they asked if I could make a magnet that could pick up plastic Legos... I said no, then kept thinking about it until I came up with a solution. I was very excited and told them how inspirational they were. For what it's worth, the (unbuilt) solution I came up with doesn't involve using magnets at all, but instead would just fake it using machine vision and quick little sticky grabbers or something.
Just use vacuum tube with a mesh at the end ;p
A national treasure
A global treasure,
Nationalism is a construct
Around 45:00!
im looking for a book comprised of engineering problems that were creativey solved and where explenatio of solution is pressented. i couldnt find one for a while that would be aimed for engineers rather then normal mortals.
does anybody know the solution to the reversed electromagnet? or where to being looking for one?
Cylo’s Garage just posted the explanation you are looking for.
The answer to avoid the test could be, that we are dealing with an electro magnetic field not just magnetic field, the electromagnetic field has 2 modalities as its name says (magnetic and dielectric), all materials interact with these fields some more with the magnetic and some more with the dielectric when directly exposed to them.
In this case the osilating magnetic field is generating a current in the cooper ring, that can't flow so I will expect this ring to heat up but as soon as you bring closer the cooper plate this current generates a week magnetic field in the cooper which is attracted by the magnet, if instead of a cooper plate we bring a unifiliar coil connected to a small light led it should turn on by inductance.
19:49 Murphy's law lmfao
mmm patents
Moar plix
46:50 People cant afford to pursue ideas these days. You can invent something in your 20s but not be able to afford to act on it till your 30s or 40s. At which time you're expected to be starting a family and buying a house...
If you have ideas to pursue I don’t think you should give up on the assumption that it would be unaffordable. Many things are much cheaper these days compared to historically. And plus, good ideas are often strongly informed by the cost and availability of parts/materials
@@andrewphillip8432 I'm not saying the problem is that products are expensive. I'm saying peoples salaries are so low that they literally cant afford to pursue ideas, which is exactly what big biz wants because they you'll have to go to them for investment...
@@beachboardfan9544 I assure you this: there is no shortage of money in the world. If you have a good idea then you will find investors. Of course, what you said is spot on. Money is scarce for regular people. This is by design. In capitalism there are things like "economics of scale", people with more resources will win by design. But don't give up. Hope is the last to die.
Argue for your limitations, and sure enough: they're yours.
Dan Gelbart is great and the students are forced into indoctrination using masks!
you don't deserve technology
@@spoot
Maybe you are right!
But at least I know they try to screw us by fear! I will not fall for it! Everything you see happening right now is fearmongering!