Mr. Kirkman Demonstrates the Tyndall Effect

Рет қаралды 116,712

3 жыл бұрын

In this video, I demonstrate the Tyndall effect, named after the 19th century Irish physicist John Tyndall. The Tyndall effect is a phenomenon where light scatters through a heterogeneous mixture (like a colloid or suspension), but not a homogeneous mixture (usually called a solution). This happens because the larger particles in a colloid or suspension scatter and reflect light, causing the beam to be thick enough to be visible. This doesn't happen in a solution because the particles are too small and finely distributed, so the beam of light passes through the solution without being visible.

Пікірлер: 59

@ESLMathTutor 2 жыл бұрын

Great demonstration (a lot easier to understand than the textbook I was reading =D) Thank you =DD

@niyatichaturvedi9903 2 жыл бұрын

This was a very nice demonstration 👍👍

@atharvana007 Жыл бұрын

been loking for one of these for a day thank you soo much!!

@GurpreetKaur-pt7hc 3 жыл бұрын

Very nice demonstration

@sanskritid8590 2 жыл бұрын

Thanks a lot for this💫

@santoshkumarsamal601 3 жыл бұрын

Thanks a lot sir

@ui2088 3 жыл бұрын

Thank you so much.

@pangpuriyeah7121 2 жыл бұрын

Thanks for the additional knowledge. I’m understanding it easily.😊😊

@juliocesarcanulrangel5111 4 ай бұрын

good demonstration

@ardhyaagrawal5477 3 жыл бұрын

Thank you very much

@AryanSingh-fj5jh 3 жыл бұрын

😁😁 Thank you so much sir!

@shivanshilaxmi4850 Жыл бұрын

I read tyndall effect in my book and i was very much eager to see it atcually. And this is AMAZING!! like seriously I can see what I read. Its real!!

@ayaankhurana1142 Жыл бұрын

Hello thanks u r helping us a lot in our tution

@reenashiju4215 2 жыл бұрын

Can we use other oil or only vegetable oil?

@ahmadal_shanqeety802 10 ай бұрын

Thank you ♡

@venkatesh.v.venkat3714 2 жыл бұрын

Thank you

@salsadellaandini5723 2 жыл бұрын

thankyou so much for it sir. i'm from indonesia

@AcmadOmar-mv2en 3 ай бұрын

Now i understand

@Tetrapod1st 3 жыл бұрын

I hate my school for forcing me to do this

@ifeanyichukwu3644 Жыл бұрын

my school didnt even teach it to me but still tested me on it 😢

@bugscodm7796 9 ай бұрын

same

@Sarasaniy 2 ай бұрын

😂😂😂😂😂

@RPLAsmodeus 2 жыл бұрын

So when a sunbeam comes through the window and I see dust floating in the air, is that the Tyndall Effect?

@mrformal737 2 жыл бұрын

Yup :) The sunbeam is visible to us only because of the scattering of the sunlight by the dust particles.

@mansibhagoria5155 2 жыл бұрын

@@adira3839 but dust particles in air is a heterogenous mixture

@wirebrushproductions1001 Жыл бұрын

Sorry, but no. The Tyndall Effect only applies to particles which are smaller than (about) a wavelength of light. Dust in a sunbeam is typically a good deal bigger, and what you are seeing is technically Mie scattering. A difference between the two is that, if you used a white light rather than a laser pointer, the beam would look bluish from the side. Mie scattering from water droplets is what allows you to see clouds, which appear white because all wavelengths are scattered equally.

@wirebrushproductions1001 Жыл бұрын

@jeff idk Most of it is, and it doesn't produce the color shift of the Tyndall Effect. Note that "a sunbeam is visible because of scattering by colloids" is not the Tyndall Effect. Lots' of online sources get this wrong. And dust comes in all sizes. The smallest particles persist in the atmosphere due to their very low settling rates.

@Laotzu.Goldbug Жыл бұрын

In terms of solution vs suspension vs colloid are there any actual chemical differences between them, in terms of how the molecules have attached to each other, or are they just physical differences arbitrary to our human scale?

@user-wu4zj3jp2u 9 ай бұрын

yo me, kolloid form aslında süspansiyon ve çözelti arasında bir geçiş alanı olarak görülebilir. Tyndall etkisi ise kompleks yapı olan süspansiyondan geçerken ışığın kolloide göre daha belirgin olduğunu görmeni sağlar ama unutma su gibi saf yapılar varken ışık daha az belirgindir ya da belirgin değildir.

@sagarmeti9813 2 жыл бұрын

Super

@j-lenapi5785 2 жыл бұрын

Isn't vegetable oil a colloid?

@billbrown994 Жыл бұрын

But when water is in a clock like vessel to observe the light bend 15 degrees the ray is visible.

@wirebrushproductions1001 Жыл бұрын

Only with impure water, which has a lot of particles in it. Even just distilled water will be hard to see. Deionized water is almost invisible.

@rehamsaid9322 2 жыл бұрын

Thx

@ILLUSTRATOR_1127 10 ай бұрын

Can tyndall effect be applied on white smoke? can this be called Tyndall effect?

@ranipandian2945 2 ай бұрын

Yes, Tyndall effect can also be observed in dust and smoke of the air

@Prabhatkumar-es2nq 3 жыл бұрын

you made this easy

@n.ramthilak4475 3 жыл бұрын

No he made it sus sy

@Vegitobluuuuu Жыл бұрын

Learned this from detective Conan

@oliviailuki5522 Жыл бұрын

THIS MY TEACHER YALLLLLL

@vishnugb9326 2 жыл бұрын

I am from INDIA

@wirebrushproductions1001 Жыл бұрын

And this is generally wrong. A "solution" also scatters light due to Rayleigh scattering by the individual molecules which make up air. However, it's so weak that such scattering is almost impossible to see with the naked eye. Direct observation of Rayleigh scattering was first done in the 70s, using lasers, for high intensity, and photomultiplier tubes, for sensitivity in detecting scattering. It's perfectly possible to have colloids with particle sizes small enough to produce Rayleigh scattering. A suspension, rather than a colloid, will generally not produce either Rayleigh or Tyndall scattering, since if the particles are big enough to settle out of suspension, they are too big to produce Tyndall or Rayleigh scattering.