[Stefan] This video is sponsored by Google Science
Fair - an online competition for 13-18 years olds.
[Olivia] Every idea has the power to shape our world,
even if it doesn't seem like it at first.
[Stefan] Join us in sharing your best ideas, and start
your science fair project, at GoogleScienceFair.com
[Olivia] Stefan, I love science fairs.
They're all about bringing people together to solve problems.
[Stefan] And I love winning prizes.
[Olivia] Perfect.
Your prize is you get to co-host this video with me about how ideas scientists are working
on today might transform how we eat.
[Stefan] That's great because I also love eating.
Let's do this.
[INTRO♩]
[Olivia] Many people around the world already have
a hard time getting access to food, and as the population grows, the demand for it is
only going to increase.
Eventually, a day might come where we just don't have enough space, energy, or water
to make food for everyone.
[Stefan] The good news is, scientists are already preparing
for that day.
Here are three innovative technologies already in the works that could transform the future
of food.
[Olivia] First, as popular as meat is, it also takes
a lot of land and energy to raise animals.
And in the future, we might not have enough resources to get everyone that particular
type of protein.
Back in the 1960s, one company developed a meat substitute with this concern in mind.
[fyoo-SAR-ee-UM VEN-uh-NAH-tum] It's called mycoprotein, and instead of
being made from the jackfruit or beans you might find in a typical veggie burger, it's
made from fungus.
Specifically, the most common one is made from a strain of Fusarium venenatum.
To make it, the fungus is fermented in a reactor with carefully controlled acidity, temperature,
and amounts of nutrients.
Then, it's combined with a binding agent and mixed up until it's roughly the texture
of meat.
According to people who've tried it, it apparently tastes pretty good.
Making mycoprotein takes significantly less land and energy than it takes to produce meat,
and the process generates up to 90% less carbon dioxide.
It also has more protein than tofu.
Unfortunately, it's also caused some people to have severe allergic reactions, and one
survey of 1000 people suggested mycoprotein sensitivity could be more common than shellfish
or peanut allergies.
So if this is going to be a long-term solution, we'll either need to find some way to test
for those allergies, or find a different strain of fungi to use.
And since researchers have already tried thousands of them, that could be tricky.
[Stefan] Thankfully, growing fungi doesn't take up
much space, but if we want to eat something besides mycoprotein in the future, we'll
likely need more land.
Right now, more than 40% of Earth's land is used for agriculture, and there's only
so much fertile ground left.
That's where another idea, called aquaponics, comes in.
It's a form of hydroponics, which is growing plants in a water and mineral solution, not
soil.
But instead of getting those nutrients from a commercial fertilizer, aquaponics uses the
waste from fish farms.
To do it, you raise a bunch of fish in a relatively small area, but keep filtering the water to
remove any toxins.
As the fish go about their lives, breathing and pooping, the water becomes full of helpful
minerals and nutrients, like nitrogen.
Then, those pass into a separate chamber and are filtered out by plants.
In some models, the plants are just sort of held over the water so that their roots dangle
into it.
At the end of the process, you have a bunch of happily fed crops and clean water that
can go back into the fish tank.
The main benefit here is that you can set up an aquaponics farm anywhere, since they
work indoors.
But there are some kinks we'll need to work out first.
For example, fish can provide almost all of the nutrients a plant needs, but getting the
right balance of them can be difficult.
Pest control is also much harder, since adding pesticides to the water could kill the fish.
You also need a bunch of fish.
Which could get pricey … especially if you're trying to do this in a desert.
Still, some farmers have already had success with this method on a small scale, so if we
keep working on it, maybe we'll all be eating fish-fed plants someday.
[Olivia] Besides aquaponics, there's another way
we could get around a future farmland shortage: We could build up, instead of out.
Their idea is called vertical farming, and it involves growing plants in stacked containers
— like on shelves or different floors — so you could basically turn a skyscraper into
a farm.
This concept was first proposed around 2009, and it's already been successful in tests.
Plus, it can also be combined with other technologies, like hydroponics.
The biggest benefit to this method is that it uses way less land.
If you built a 30-story farm on one city block, you could grow almost 100 times as much food
as on a traditional farm of the same size.
Since these farms are indoors, you also wouldn't need to worry about the weather or most pests.
And if you used filtered wastewater to irrigate your crops, you'd basically have the perfect
city farm.
Then again, you would also need to construct a giant, custom-made building to make this
work, and that wouldn't be cheap.
And you would need a way to get your plants enough sunlight, too.
One option would be to use artificial lighting, which has worked relatively well on current
hydroponic farms.
You could also rotate plants throughout the day to get them equal time near windows or
skylights.
Possibly the biggest challenge, though, is that vertical farming isn't very eco-friendly
— at least, not yet.
One 2015 analysis of a small farm calculated that vertically growing lettuce produces 2-5
times more carbon dioxide than lettuce grown in open fields.
Most of that probably came from powering the building, since running artificial lights
and irrigating crops uses a lot of electricity.
We could make this technology greener by using cleaner sources of energy, but since that's
not the only hurdle, it will probably be a while before cities are the new farmlands.
[Stefan] So far, none of these technologies are perfect,
and we'll need future innovators and engineers to perfect them.
That's where the Google Science Fair comes in.
[Olivia] That's right.
Google Science Fair is a global online competition.
If you're 13-18 years old, you can submit a project between now and December 12 at GoogleScienceFair.com
[Stefan] So find a problem that you want to solve,
whether it's about the future of food or something else you're concerned about.
Then, think up an idea to solve that problem and test it out.
[Olivia] Then, share your results with the world!
You could win prizes like, well, Stefan, do you want to talk about the prizes?
[Stefan] I sure do.
Your idea could win prizes like the National Geographic Explorer Award, which allows you
to travel to the Galapagos Islands on a 15-day expedition.
Or you could win a Chromebook and other goodies to help you bring your ideas to life.
Or the Grand Prize, a $50,000 educational scholarship.
[Olivia] Your project idea can be big or small, brand
new, or improve upon an existing idea.
And you can do it entirely on your own, or as a part of a team of up to three people.
[Stefan] We can't wait to see what you dream up.
Just go to GoogleScienceFair.com to register and submit your idea by December 12, 2018.
[Olivia] Thanks for watching and for making our world
a better place!
[OUTRO♩]
For more infomation >> 3 Ways We Could Transform the Future of Food - Duration: 6:28.-------------------------------------------
NEWEST & BEST KODI BUILD 🔥 KODI 17.6 OCTOBER 2018 🔥 SMOKIN KODI BUILD 🔥 EDEN WIZARD - Duration: 15:41.
Hello guys !! It's Kodi Best Build back with you again
with another amazing video
wish you doing well
and having a great time with your friends
family or kids doing sports or whatever I just wish the best
so today we gonna install an amazing kodi build from the new source of the great Eden Wizard
you can install the Smokin build kodi or Smokin kodi build on any device running with kodi 17 installed
kodi krypton any version 17 you can get this build working well without any problem
do not forget guys to thumbs up and share the video with your friends
or family or anyone ma here for your help and thanks a lot for your amazing support
if you got any issues just let me know
the eden wizard is working well on all devices
am so happy to share this build with you guys
have a great time watching me ♥
-------------------------------------------
FASTEST & BEST KODI BUILD 🔥 KODI 17.6 OCTOBER 2018 🔥 BATTLEFIELD BUILD KODI 🔥 FROM UKODI1 WIZARD - Duration: 13:44.
What's up guys it's Everything Kodi back with another video
so many of you are looking for a build with lot of different add-ons
and lot of different sources for content then you might want to check the battlefield kodi build
I've also tested on my fire TV and two other fire sticks the build works great
You will enjoy this kodi build on your amazon fire stick or nvidia shield or android tv box
now I'm gonna give you guys an overview of what it has to offer
offer if you like it I can show you how you can get it installed on your device.
Now if you haven't already go ahead and hit the subscribe button
and make sure you click the little bell icon right next to subscribe so you don't miss any of my posts
so let's go ahead and jump into the overview of the build.
Now once you install it the first section you're gonna run into is the movies section
so you have the widget here at the top
you can scroll through find a movie and tv shows you like.
Don't forget to subscribe and click the bell icon to stay informed.
-------------------------------------------
i'm not a robot. [CountryHumans animatic] [READ DESC. PLS] - Duration: 1:33.
For more infomation >> i'm not a robot. [CountryHumans animatic] [READ DESC. PLS] - Duration: 1:33. -------------------------------------------
Bigfoot Finding & Monster Hunting - Android Gameplay HQ - Duration: 3:28.
Bigfoot Finding & Monster Hunting - Android Gameplay HQ
-------------------------------------------
Marc Anthony, Will Smith, Bad Bunny - Está Rico (Official Video) Reaction - Duration: 7:18.
Drop like on this video if you guys enjoyed
Comment down below your thoughts in your opinions about the video. Make sure to subscribe
With host indications on so you stay down fight on every single video also follow my social media
So they tuned for updates for incoming videos. Thank you
What's up guys still crabs here welcome back to another reaction. So we'll be rockin to Marc Anthony's new music video
Called a star echo
With Will Smith's and bed bunny. I love both for those musicians and
those three are
Fantastic and by the way about Marc Anthony
I'm doing a Spanish project and I chose Marc Anthony
Well, you have to pick this one Hispanic artist or musician and then you do my project out of it like you
Search up
you do some research about their life and
About yeah, all that so
Yeah, I hope you guys enjoy the video and let's get to start in three two one
Let's go go. Oh
man, I
Loved okay for me Veda his other song that was my first
Song that I loved of his playlist
My car with Tess mark-anthony with the new anthem ya know it's a little intense
ferragamo wanna
Colorado in Miami Harbor
Pretty good
That should be bad bunny
I'm ravenous not the music video because some parts are weird
Most myths that's my guy
And bunny and mark-anthony
Absolutely love Anthony, it's my favorite not like that
Always mix one day
Money flies I
Really enjoyed this song and this song was was
Was
Really? Fantastic. I
Actually really enjoyed it. So
All credits closed to Marc Anthony Will Smith's in bed
Barney I almost said
bad, baby
But it's bad bunny
So on that guys, I hope you guys enjoyed make sure to drop a like calm down below and subscribe to the channel
We're almost up to 500 subscribers. Let's get there
Soon enough. So thank you guys so much for
Watching and I will see you in the next video. Goodbye everyone
-------------------------------------------
TUNE - SI TU TE VAS - Duration: 3:01.
(♪♫)
♪♫
if you go...
Leave me now
if you go...
Leave me now
I will tear you from my heart
like weeds in my garden
I will tear you from my heart
like weeds in my garden
if you go
Leave me now
if you go
Do not return anymore
please...
(♪♫)
Không có nhận xét nào:
Đăng nhận xét