Nyumbani/Video

William Kamkwamba: How I built a windmill

Name: William Kamkwamba: How I built a windmill
Uploaded: 2026-09-03T16:49:25.352Z
Description: Chris Anderson: William, hi. Good to see you. William Kamkwamba: Thanks. CA: So, we've got a picture, I think? Where is this? WK: This is my home. This is where I live. CA: Where? What country? WK: In Malawi, Kasungu. In Kasungu. Yeah, Mala. CA: OK. Now, you're 19 now? WK: Yeah. I'm 19 years now.…

VideoA1Hofu na siriBure kusomaKaratasi ya mazoezi inayochapishwa

dak 6Kiingereza pamoja na tafsiri katika KiswahiliMaswali

0:00 / 0:00

Chris Anderson: William, hi. Good to see you.

William Kamkwamba: Thanks.

CA: So, we've got a picture, I think? Where is this?

WK: This is my home. This is where I live.

CA: Where? What country?

WK: In Malawi, Kasungu. In Kasungu. Yeah, Mala.

CA: OK. Now, you're 19 now?

WK: Yeah. I'm 19 years now.

CA: Five years ago you had an idea. What was that?

WK: I wanted to make a windmill.

CA: A windmill?

WK: Yeah.

CA: What, to power -- for lighting and stuff?

WK: Yeah.

CA: So what did you do? How did you realize that?

WK: After I dropped out of school, I went to library,

and I read a book that would -- "Using Energy,"

and I get information about doing the mill.

And I tried, and I made it.

(Applause)

CA: So you copied -- you exactly copied the design in the book.

WK: Ah, no. I just --

CA: What happened?

WK: In fact, a design of the windmill that was in the book,

it has got four -- ah -- three blades,

and mine has got four blades.

CA: The book had three, yours had four.

WK: Yeah.

CA: And you made it out of what?

WK: I made four blades, just because I want to increase power.

CA: OK.

WK: Yeah.

CA: You tested three, and found that four worked better?

WK: Yeah. I test.

CA: And what did you make the windmill out of?

What materials did you use?

WK: I use a bicycle frame, and a pulley, and plastic pipe, what then pulls --

CA: Do we have a picture of that? Can we have the next slide?

WK: Yeah. The windmill.

CA: And so, and that windmill, what -- it worked?

WK: When the wind blows, it rotates and generates.

CA: How much electricity?

WK: 12 watts.

CA: And so, that lit a light for the house? How many lights?

WK: Four bulbs and two radios.

CA: Wow.

WK: Yeah.

(Applause) CA: Next slide --

so who's that?

WK: This is my parents, holding the radio.

CA: So what did they make of -- that you were 14, 15 at the time --

what did they make of this? They were impressed?

WK: Yeah.

CA: And so what's your -- what are you going to do with this?

WK: Um --

CA: What do you -- I mean -- do you want to build another one?

WK: Yeah, I want to build another one --

to pump water and irrigation for crops.

CA: So this one would have to be bigger?

WK: Yeah.

CA: How big?

WK: I think it will produce more than 20 the watts.

CA: So that would produce irrigation for the entire village?

WK: Yeah.

CA: Wow. And so you're talking to people here at TED

to get people who might be able to help in some way

to realize this dream?

WK: Yeah, if they can help me with materials, yeah.

CA: And as you think of your life going forward,

you're 19 now,

do you picture continuing with this dream of working in energy?

WK: Yeah. I'm still thinking to work on energy.

CA: Wow. William, it's a real honor to have you at the TED conference.

Thank you so much for coming.

WK: Thank you.

(Applause)

Gusa neno lolote lililo chini ya mstari ili kupata maana yake.

Vikwazo vyako vya bure leo

Kusoma ni bure. Gusa neno ili uanze: tutahifadhi maendeleo yako na maneno kwenye kifaa hiki.

Kuhusu somo hili

Somo la Kiingereza kwa wanafunzi. Imeandikwa katika kiwango cha A1, hivyo Maneno ya kwanza na sentensi rahisi. Soma, sikiliza pale ambapo sauti inapatikana, gusa maneno usiyoyajua na malizia kwa kujibu maswali.

Maswali yanayoulizwa mara kwa mara

Somo hili liko katika kiwango gani?

Liko katika kiwango cha A1 (Mwanza) kwenye kipimo cha CEFR: Maneno ya kwanza na sentensi rahisi.

Je, somo hili ni la bure?

Ndio. Unaweza kusoma somo lote bila malipo. Akaunti za bure zina vikomo vya kila siku vya kutafuta maana ya maneno, maswali na zana za AI; Premium huondoa vikomo hivyo.

Ninawezaje kuelewa maneno nisioyajua?

Gusa neno lolote upate maana yake, lihifadhi kwenye orodha yako ya maneno, na ulirudie baadaye kwa marudio yaliyopangwa kwa vipindi.