>> Major funding for Design Squad Nation is provided by: >> The National Science Foundation, where discoveries begin.

Series funding is provided in part by NASA-- the National Aeronautics and Space Administration.

>> Northrop Grumman Foundation, supporting innovative education experiences for students and educators.

>> And the Lemelson Foundation.

The Foundation sparks, sustains, and celebrates innovation and the inventive spirit in the U.S. and developing countries.

Additional funding is provided by: United Engineering Foundation... >> ...Motorola Foundation.... >> ...and IEEE.

>> I'm Judy.

>> And I'm Adam.

We're engineers.

>> We work with kids... >> This is so cool!

>> ...to make their dreams come true through engineering.

>> ( speaking in Spanish ) >> If you can dream it, you can build it.

>> I never really thought I could do something like this.

>> That was really fun.

( laughing ) >> On Design Squad Nation.

>> Can I get a veggie flap wrap, please?

I'm Mariam Turre, and I live in London.

With extra chili and extra garlic.

So right now we're at Camden Stables.

It's a huge market in Camden Town.

This is my local neighborhood.

I am so excited about this.

It's good to come and sit down by the canal and have some lunch.

In all honestly, I really didn't care about what I was eating.

I didn't think about where the food came from, what it consisted of, how healthy it was for me.

I'd go to any fast food place, and I wouldn't really care.

But now I think it's important to grow your own food, because you know what you're putting into that plant, and you know what's in it.

Camden's a really, really densely populated area, so there's not a lot of space.

A lot of people live in apartments or terrace houses.

Okay, where I live is right at the top up there, in that apartment building.

It's the one with the yellow top.

It's really difficult to grow stuff here, because of the lack of space.

Most people only have a balcony.

>> I'm Robert Duka.

I come from Albania.

I came here when I was 11 years old.

We have a way of life of having food on our plates.

We haven't been shown how to grow it.

We don't know how to grow it.

It is quite important that we start to learn and know how easy and simple that fruits and vegetables can be grown anywhere and everywhere.

>> Bert and I, we're part of an organization called Global Generation.

And we grow different fruits and vegetables, and then we harvest them.

At Global Generation, we've got loads of projects going on in the King's Cross area, my local community.

>> Global Generation got rooftop gardens in four different places.

In here we've got a lot of plants.

We've got some raspberries here.

The idea is to grow food on our rooftops, as closely to our homes and as closely to our restaurants that we can.

>> One of the projects going on in the King's Cross area is a skip garden on a construction site that has sort of been loaned to us.

So when they're ready to build on that site, we can just pick up the skips and move to another location.

Skips are just huge metal structures where loads of rubbish is put into.

They're like huge, huge bins.

It's a whole new innovative idea, having gardens in skips.

There's no one else in the country's doing it.

We take our produce to local restaurants, and they prepare meals and serve them to customers, and the customers love it, and they can actually taste the difference.

Taking the vegetables and the fruits to restaurants now is really quite difficult.

Not that long ago we got a bicycle.

And it used to be a nappy delivery bicycle.

And so we can load produce into there.

It's not, like, ideal, because there's not that much space.

And still it's, like, quite heavy to cycle it.

It would be an absolute dream if we could find a way to get the produce to the restaurant so the chefs could harvest it, and so I wouldn't get backache or sweat a lot, because I don't like that.

My fondest memory of London is the Cornish pastie.

Bert, Marian, you want a bite?

>> Delicious.

>> No thanks, I'd rather eat soil, guys.

>> No, thank you very much, guys.

>> See, Bert and I are used to growing our own produce and eating that.

>> Here in London?

>> Yeah.

Downtown London.

We're part of an organization called Global Generation, and we're all about sustainable agriculture.

So we grow our own fruit and veg, and we, like, sell it to local restaurants.

>> Right in the city?

>> Yeah.

>> That's amazing.

>> Can we go see?

>> Yeah, definitely.

Oh, yeah, let's go.

Let's take them.

>> You think I can get a piece of lettuce around this?

>> Yeah, but no sharing.

>> Come on, just a bite.

One bite.

>> No.

>> Well, guys, welcome to Global Generation and our skip garden.

>> This is a skip?

>> This is a skip.

>> This is a dumpster.

>> Well, in England we call it a skip.

This is our orchard.

We've got some apples, pears, strawberries.

>> I love the fruit on there already.

>> And the reason that we grow stuff in skips is because we haven't got this land forever.

It's just being loaned to us.

>> I love that you can just move them around.

>> Yeah, and we've got, like, four other sites in this area, so we're good.

>> That's such a cool idea.

>> Yeah.

>> This one, we've got tomatoes.

These are Russian Reds.

We've got about 600.

And we are planning to sell them.

>> These are all tomatoes?

This is, like, a greenhouse?

>> Greenhouse.

>> Yeah, we call it a polytunnel.

>> Yeah?

>> Yeah.

Well, with the vegetables, we sell them to local restaurants.

With the waste that they give us, we compost it in here.

>> That's your composter?

>> Yeah, all the waste food that we get, we feed it into here, and then it breaks down, and then we use that to feed the plants, so that they can grow again.

>> Instead of using fertilizers on the soil, we use worm juice, which is very healthy and organic.

And that's our wormery.

>> If you want to make worm tea, you need a wormery like this one.

A wormery is like a condo for worms.

First, dump plant food scraps onto the penthouse or top floor of the wormery.

Worms love to eat these scraps.

Bacteria in their intestines digest the scraps, which are then passed out of their bodies as rich nutrients.

Worms live in the next floor down, where dirt is mixed with shredded newspaper.

Worms love to chew on the wood fibers in the paper, which provides even more nutrients for the tea.

There's a screen on the bottom that prevents the worms from getting down to the basement of the wormery, and that's where the worm tea is brewing.

Then pour water into the penthouse.

As the water seeps to the basement, it dissolves and concentrates the nutrients from the soil along the way.

So when you turn the tap that's attached to the basement, out pours a rich, natural liquid fertilizer for your garden.

And the way that we transport our fruits and vegetables to our restaurants at the moment is by using this... >> Formerly diaper delivery bike.

Yeah.

>> You deliver your food on a diaper delivery bike.

>> So it would be great if we could think of a way to transport fresh produce for the chefs to harvest themselves to the chefs.

>> I think we can help you out.

>> Judy, what do you think?

I think we can do that.

>> That would be great.

>> Let's go do some brainstorming.

>> All right, guys, so we need to do something better than your nappy delivery bike.

>> How about some sort of a trailer that we can trail it around to the actual restaurants?

>> That's a great idea.

>> Do we want, like, a cover, or something to protect it so there's not pollution and smoke and smog getting on the vegetables?

>> Yeah, definitely.

>> How about we can have some kind of hoops going around it?

>> Kind of like the hoops you guys have on those skips.

>> That's a great idea.

>> And we can grow the fruits and vegetables in baskets.

>> What would be good is, you know how earlier I said about compost, and how we use the waste food from the restaurants?

It would be good if we could sort of collect it on site and then bring it back to the garden.

>> That's a great idea, yeah.

>> How about instead of having one bike, can we actually have two bikes?

>> Yeah, that's smart.

There's two of you guys, so... you know what?

Two bikes, actually, we can pull twice as much weight, too, so twice as much vegetables.

>> Twice the power.

>> I like it.

>> Okay, two bikes.

Do you guys have anything like a basket that we could put the vegetables in like that?

>> How about something like that?

>> Yeah.

>> Bread trays.

>> It's a bread tray?

>> Yep.

>> Like from a bakery?

I like that one right there.

That's kind of got the wood frame around the whole thing.

>> And it's nice because it really reinforces the plastic trays, too.

>> It's probably pretty light, too, right?

Like, that's not too bad.

Yeah, we can put a handful of these on the cart.

It should be fine, right?

>> These will be perfect.

It seems like it'd be great to use a lot of recycled materials.

I mean, especially we're in this construction site.

Do you know of a place we can go do some dumpster diving?

>> Bin raid!

>> Look at it.

Look at it.

It's full of goodies.

Oh, yeah.

>> These would look really cool for the polytunnel.

Like, for the structure.

>> You think?

>> I think we've got our polytunnel.

>> Great.

>> I think we can salvage the wood for something.

>> This one's smaller, but way heavier than the last.

Way, way heavier.

How gorgeous would that be for the side of the cart?

Hey, you guys want to come check this out?

You guys find some goodies over here?

>> I think this would look really great on the side of the cart.

>> Oh, sweet.

>> And we also found a stack of pallets that we can use.

>> You guys, this mechanical engineering business is great for your biceps.

I can use work in the arms.

>> I never thought about it like that.

>> Bin raid!

>> Bin raiding successful.

>> What we're going to do now is actually pull apart all the wood on here, and we're going to use it to line the full plastic bakery trays that are going to hold all the plants.

One clean board ready to go right there.

>> I could really do this all day.

>> Yeah?

>> Yeah.

>> Do you like working with your hands?

>> Definitely.

I don't do it enough.

>> That's a good fit.

>> Nice.

Now you got it.

Easy stuff, yeah?

>> This is actually really fun.

>> Good.

>> Let's rock and roll.

>> Like this.

Whoo!

All right, that was our last cut.

Yeah, piece of cake.

>> Oh, there we go.

>> I like it when girls work with tools.

>> So do I.

>> Screw there, screw there, and that will actually hold it in place.

And then we can put the plastic in.

The plastic is used to actually house the soil inside it.

>> How are you on that corner?

If we're flush, does it feel... >> That can come in a bit more.

>> Cool.

Box number two done.

Doing this with you guys has been fantastic, because I didn't know anything about what engineers did.

>> What did you think we did before?

>> I thought engineers sort of just sat in rooms and calculated things.

But it's actually really fun doing this.

>> It feels like... this three by two feels pretty good, huh?

>> Well, in that case, I think we should cut some metal.

>> Yeah.

>> We're going to weld the frame up right now.

>> Okay.

We're going to have a trailer that is going to be six and a half feet long, and four feet width.

We are one of the first people to make a trailer that can actually go with live plants in the actual streets.

>> Cool.

All right, one more.

>> And I think it's going to be quite surprising to the people of this area to actually see live plants growing in a trailer, traveling in the middle of the city.

>> Yeah, we should have some room, so we can see how tight we want those... >> When I first saw the frame, I did think, like, "Whoa, it really is massive."

But I think being in London, there are so many huge buses and trucks going by all the time, so we'll fit right in.

I'm not really worried about the size.

>> This looks great.

You guys did a great job on this.

>> Let's put that right here.

>> Let's try these out.

Nice.

Look at that.

>> Why don't we do this right now?

We can figure out the spacing, how wide apart we want the bicycle.

We're going to put a tube right there.

One tube right there.

And then we'll have two more on the front, across there.

So it's going to go from right here on this bike to right there on that bike.

>> I think this design of the bike is fantastic.

It's ideally built for teamwork, and it can hold a lot of produce, and it's exactly what we need to do.

This bike is really, really valuable to Global Generation.

It's going to make a huge difference.

We can make more links with bunesses, deliver more produce, so we'll get our community more healthy.

Definitely got a lot of benefits to getting this bike.

>> The last piece on the bike, which is going to be the piece that connects the two stems.

>> Yeah.

>> So when you go to steer, you go the same way.

>> Oh, good.

>> Got that?

>> Yeah.

>> Looks good.

Nice.

>> I think that's as tight as it will go.

>> Give it a good crank.

That's it.

Nice.

That's good.

All right, this is what's going to actually go between them to tie them together.

>> Yeah.

>> I'm just going to pivot back and forth.

So you can go ahead and screw that on.

There you go.

Tighten that up.

All right, so this is looking great.

>> What's wrong?

This is so cool.

Go left, go left.

Just turn your elbows.

How are you feeling?

>> That's good, huh?

>> I'm feeling this on my legs, man.

This is good.

Go, go, go, go, go, go, go, go!

This is so fun.

>> That's good, huh?

>> And if I get tired I can just stop.

>> So guys, I think the cart's almost done here.

I think it would be great before we put the wheel axle on to figure out, like, kind of how high we want it to be.

>> All right.

>> How's she roll?

>> Poifect.

>> Pretty good.

This is our crazy axle.

It does whatever it wants.

>> So imagine you're shopping.

What feels like a good height to be picking vegetables from?

>> You know, that looks pretty good.

>> This looks good?

>> I like this, and I don't feel like I'm straining to... >> So that's a good feeling height, you're telling me, you guys, right there?

>> Mm-hmm.

>> I think the trailer itself is going to weigh about 460 pounds, and I'm feeling a bit cautious about it, because we don't want to put too much weight, as we know that it is going to be traveling a few miles away.

>> Let's run away!

>> At the same time, I am up for a challenge, so bring it on.

Why not?

That's it.

>> So I feel great that these guys got a little bit of exposure to engineering, and I think it was really, really kind of eye-opening for them.

You know, they can see kind of like what you can make with some tools and skills like that.

>> It looks nice and Old English, very appropriate.

I like that.

Okay, it's all coming together now.

>> Yep.

>> Pass that down.

>> We're done.

High fives, high fives.

Yes.

Are you going to paint my face on the front?

So close.

>> Perfect.

>> Yeah.

>> This is going to look great.

>> I'm pretty excited about the design.

Mobile garden, I've never seen one of those, you know, especially one on a bike.

But I'm pretty excited to see Mariam and Burt actually roll out to a restaurant and then have a chef come out and pick something from the garden that they just rolled up.

I mean, we're not talking about fresh, like, cut the same day.

We're talking about ultra-fresh.

Picked right then and there.

It's like making a bed.

>> Yep.

>> Get your tomato, two bob a pound, two pound a pair, love.

>> Hopefully there's a drill sticking out of the bottom.

Whoo-hoo!

All right, stick that in, and then we'll put... our trailer is hitched.

Fantastic.

>> So I hear you guys collect the vegetable peelings from the restaurants.

Is that right?

>> Yeah.

>> In these bins?

>> Yeah.

>> And how many of these do you collect, typically, in a day from a restaurant?

>> Maybe two.

>> So what do you think about if we have something... if it's stored underneath, right?

Because we want to keep it from the fresh vegetables.

>> Yeah, because we're thinking just to collect them in bags and probably sling them over our shoulders.

>> Ew!

>> Yeah.

>> Does that fit?

Oh, curses.

>> So this is going to have to be thinner plywood.

>> Hey, you guys, instead of putting it right at the back of the bottom, why don't we put it in the front, so then it's easier to get to?

I think there'd be enough room.

>> A shelf that would kind of stick out like this?

>> What if we... yeah, like that.

Could we do three across like that?

>> Two.

I think it holds three perfectly.

Sun's starting to go down, and we have to finish this tonight.

Oliver from KONSTAM is going to expect this to be delivered tomorrow.

>> Tomorrow morning.

>> Fresh veggies.

>> He means business.

Yeah.

>> Are you guys ready for a test run?

>> Yeah.

>> Ready for a ride?

>> I've been waiting for this all day.

>> Do we have your helmets?

>> Yep.

>> All day?

All week.

Good hike up the hills for sure, you guys.

>> Yeah.

>> Doesn't even have any dirt in it yet.

>> Engineering at its best.

>> Whoo!

>> We're moving, we're moving.

>> Look at it go!

Look at it go!

>> Feels great.

>> Yeah?

>> You ready to throw some weight in the back of that?

>> This isn't a taxi service.

>> Well, don't worry.

>> Oh, you'd be surprised.

>> Oh, I like this.

>> Wow, they're going really fast.

>> I know, they're moving.

Faster, faster.

>> Mush!

>> Oh, the hill.

The hill is going to be the test.

>> How is it?

>> It's great, yeah.

Feels the same.

It feels the same.

>> It feels the same.

>> Wow, you guys are really strong.

This is beautiful.

>> So beautiful.

Look at that garden.

>> I can't believe the four of us did this in so little time.

>> Give it up right here.

>> From here over the edge.

It's been awesome.

So we'll meet you at KONSTAM.

>> For lunch.

>> Have a good ride, guys.

>> Bye.

>> Bye.

>> I can't wait to eat our veggies.

>> Whoo-hoo!

We're moving, we're moving.

>> Hi.

>> This is awesome.

>> Check out the people.

Everybody's looking at us.

>> Good morning there.

This is so fun.

I'm representing the Queen.

>> We're getting cars beeping at us and everything.

>> I know.

Whoo-hoo!

Getting closer.

>> Howdy.

(car horn honking) >> All right, all right.

I say we need to get a horn.

>> Yeah.

>> Geez, beep right back.

>> Yeah, guys.

>> Whoo-hoo!

How was the ride?

>> Good stuff.

>> Fantastic.

>> It was great.

>> It was great.

And I did see a few people take down the Web site, so that is exactly what we wanted, yeah.

>> Anyone hungry for lunch?

>> Yeah, let's go get Oliver.

>> Let's go inside.

>> Wow.

That's incredible.

Did you guys just build that and bring it over here?

>> Yeah, us four did.

>> Amazing.

That's, like, the ultimate, like, mobile local garden.

I've actually brought my basket already.

I didn't even believe I was going to see anything like this.

Tell me what you've got in here.

Explain everything to me.

>> You've got some sage here, you've got some beautiful, as you can see, peppers.

>> This is kale, isn't it?

>> Kale, yeah.

>> Fantastic.

And these are salad leaves.

This just tastes amazing.

It's fantastic.

I'm going to take some of this stuff.

I'm going to get stuff here.

>> Well, you know, Oliver, have a field day.

Because this is all for you, okay?

>> Thanks, Mariam.

I love that.

That is the most local food you can possibly have ever.

>> Mission accomplished, guys.

>> It would be appreciated if we could actually have your waste there, because we can reuse it again to make soil.

>> All right, so you actually want any waste I've got that's just from the kitchen.

>> Anything you've got.

>> Okay, here we go.

Your salads.

I've got a really lovely colorful garden summery salad.

>> They look amazing.

>> Warm.

>> Did you guys want some of this?

Because I was going to eat it.

>> Isn't that pretty?

>> Well done, guys.

You've done a great job.

>> Thank you.

This looks delicious.

>> Enjoy.

>> This looks great.

>> This is so good.

>> You guys have to try this.

>> I feel like this is a great reward for everything we've done.

I mean, we've worked so hard.

This is the perfect, perfect way to reward ourselves.

>> A nice meal.

>> Yeah, definitely.

I'm really proud that we were able to put this together.

It's definitely going to benefit Global Generation.

More people are going to, you know, look at us as, like, "Yeah, they're, like, a serious organization who wants to change the world."

>> Major funding for Design Squad Nation is provided by: >> The National Science Foundation, where discoveries begin.

Series funding is provided in part by NASA, the National Aeronautics and Space Administration.

>> Northrop Grumman Foundation, supporting innovative education experiences for students and educators.

>> And the Lemelson Foundation.

The Foundation sparks, sustains, and celebrates innovation and the inventive spirit in the U.S. and developing countries.

Additional funding is provided by: United Engineering Foundation.

>> Motorola Foundation.

>> And IEEE.

>> Hey, Adam, check this out.

It's the Design Squad Nation Web site.

You can play games on it.

>> Whoa, sweet!

Hey, look at this.

You can watch videos from the show and you can sketch your own new designs.

>> And there's a ton of amazing designs on here from kids at home.

Here's a hitch to connect your bike to a wagon.

This is a house that collects rainwater and grows plants on the roof.

And here's an invention to protect trees from hurricanes.

>> So join Design Squad Nation at pbskidsgo.org.