Comments on: FRESNEL LENS PARABOLIC MIRROR FOCAL POINT FOCAL LENGTH SOLAR POWER ALTERNATIVE ENERGY HID LIGHT

By: tbenefi33

tbenefi33 — Sun, 28 Feb 2010 10:27:13 +0000

I agaree with you …
I agaree with you on that. Thank god for you tube

By: sugarbaby45

sugarbaby45 — Sun, 28 Feb 2010 10:27:13 +0000

thank you for this, …
thank you for this, you read it in the books all your life but its a different thing to see it shown like this.

By: MinTrinidad

MinTrinidad — Sun, 28 Feb 2010 10:27:12 +0000

This brings back …
This brings back memories of Physics labs, where we found the focal length by using the reflection method. This way is far much cooler. Write a book Dan please do.

By: JavaLessons

JavaLessons — Sun, 28 Feb 2010 10:27:12 +0000

Very illuminating !
Very illuminating !

By: SylwerDragon

SylwerDragon — Sun, 28 Feb 2010 10:27:12 +0000

Coool
Coool

By: GREENPOWERSCIENCE

GREENPOWERSCIENCE — Sun, 28 Feb 2010 10:27:11 +0000

Wow!!!!! …
Wow!!!!! Thank you very much!!!!!!

By: darkvader47

darkvader47 — Sun, 28 Feb 2010 10:27:11 +0000

You would make a …
You would make a good science teacher, and I wouldn’t be bored at all. I’m a professional photographer and you’ve taught me more about Focal Length than I ever understood in photography class, honestly.

By: naisayd

naisayd — Sun, 28 Feb 2010 10:27:10 +0000

Great focal point …
Great focal point demo. What was the music playing in the background ?

By: sonofhendrix

sonofhendrix — Sun, 28 Feb 2010 10:27:10 +0000

Don’t stop making …
Don’t stop making these videos a learn something new everytime!

By: ReisendeEuropa

ReisendeEuropa — Sun, 28 Feb 2010 10:27:10 +0000

Excellent way to …
Excellent way to show the fp. The water spray at the end was neat as well. I agree with darkvader47.. you would make a good teacher.