My god Michael. i have read so many articles and so many topics on light. None could ever teach me this topic as good as your video has. I am taking this knowledge to the grave. Thank you!

Would love to see the remainder of the electricity video. Any chance of that happening ?

Tossing in another voice to the "why does the electricity video just suddenly end?" question. I was actually enjoying that and then out of no where all the sudden it just cuts off mid-

Michael - you are a genius at transmitting knowledge clearly and succinctly. Thank you !

Hi. Just wanted to say that I love the "How electricity works... animated" video but it is truncated. It stops abruptly before the end. Is there a second part? If not, can you repost it complete? Thank you.

Please make more! I enjoyed all the videos you made :)

i had no idea this much went into lights. Though i should have known better. Very interesting about the color being visible tho. great videos. Please reupload the electricity video so we can see the rest of it.

Good video!

Why does your electricity video just suddenly end?????

@Kowinaida

6 жыл бұрын

ophello Ha! Yes...that was frustrating.

@RokiMowntinHi

6 жыл бұрын

ophello - YES! 😫

@cesarangeles1204

5 жыл бұрын

Came here just to say that

@nd6515

3 жыл бұрын

He might be a sociopath

i love your videos please consider going deeper into your subjects. i for one would love to watch. You provide a stright forward way of explaining things that makes following and learning extremely easy.

@michaelermann3970

8 жыл бұрын

+lefco go to my website, 60penny.com for much much more.

In the city, sodium lights are my favorite...

my uncle used to have a florescent light in his kitchen now they renovated it and removed it and now have a ceiling fan with actual kitchen ceiling lighting

Are there LED's now with ratings of 100, perhaps with different LED colors in a single bulb/strip?

Incandescent lamp can create b emision cause tuberculosiss illness and it is antena for long-range comnunication

Nice video. Note for the efficiencies. Old school incandescent lamps have efficiencies from 0.7% up to 2.6%, halogen incandescent lamps from 2.4% to 5.1%, not around 10%. There is good article in the Wikipedia about efficacies and efficiencies. en.wikipedia.org/wiki/Luminous_efficacy

Very nice video

Another pro of incandescent light bulbs is that they are infinitely dimmable

High pressure sodium ftw

Nice vid

Prof. Ermann, which one is Halogen?

@luismdoz

7 жыл бұрын

Joyce Zhang If I were to guess I'd say it is the halide metal one

@kepa219

5 жыл бұрын

Halogen lamp is newer type of incandescent lamp. Halogen lamps have higher efficiency and longer lifetime than old school incandescent lamps.

Where is CFL lights in this list, Is it just different terminology?

@frozengrayful

5 жыл бұрын

CFLs are Compact Fluorescent Lights, essentially mini Fluorescent lights. The phase controller is integrated into the base attachment. In the tube there is mercury excited by electricity, which makes the phosphors emit visible light. CFLs are slowly to be phased out due to high concentration of mercury in our landfills from their improper disposal!

Good video. :-)

nawl Nigga. YOU.. had the easy bake oven!

I need a good light for my living room, I need it to be like old times, lounge light, jazz light u know, what would that be?