Cesar Harada: How I teach kids to love science
Cesar Harada: Så lär jag barn att älska vetenskap
TED Senior Fellow Cesar Harada aims to harness the forces of nature as he invents innovative remedies for man-made problems like oil spills and radioactive leaks. Full bio
Double-click the English transcript below to play the video.
my parents would tell me,
brukade mina föräldrar säga,
but you have to clean up after yourself."
men du får städa själv."
to all these wonderful places,
till underbara platser,
av oskuldsfullhet -
to protect us from the ugly truth.
för att skydda barn från hemskheter.
that adults make a mess,
att vuxna stökar till,
at cleaning up after themselves.
att städa efter sig.
jag är vuxen nu, och lärare
at the Hong Kong Harbour School.
vid Hong Kong Harbour School.
and stumble upon piles of trash.
med skräp när de promenerar på stranden.
we clean up the beaches --
städar vi stränderna -
and if he is, I did not give it to him.
så vore, har jag inte gett honom den.
of the oceans have plastic in them.
i 80 procent av världshaven.
and those big nets,
med gigantiska nät,
that we look at under a microscope,
som vi undersöker i mikroskop, sorterar
it's very expensive,
kostsamt evighetsarbete,
to take those big boats out.
med så stora båtar.
som är mellan 6 och 15 år,
of inventing a better way.
Hong Kong classroom into a workshop.
i Hong Kong till en experimentverkstad.
this small workbench,
so even really short kids can participate.
små elever kunde vara med.
are awesome and safe.
kan hantera verktyg på ett säkert sätt.
to the size we find it in the ocean,
till samma storlek vi hittat i havet,
because it breaks down.
of my students run wild.
får skena iväg med dem.
the best of each kid's idea
det bästa med varje barns idé
that hopefully would work.
som förhoppningsvis fungerar.
that instead of collecting plastic bits,
att istället för att samla in plasten,
of the plastic with a robot --
bild över plastpartiklarna -
we do what we call "rapid prototyping."
vi kallar "snabbprototyper."
when we're hacking it.
matlådan när vi skruvar.
into plumbing fixtures
och webbkameror i rör
that will be slowly moving through water
som ska att flyta på vattnet
that we have there --
that we get in the robot.
roboten registrerar.
floating slowly through the sensor,
igenom sensorn,
will process this image,
of how much plastic there is in the water.
antalet plastpartiklar i vattnet.
this invention step by step
called Instructables,
som heter Instructables,
would make it even better.
förbättra den ytterligare.
was that the students saw a local problem,
att eleverna såg ett problem
de försökte genast hitta på en lösning.
to immediately address it.
are hyperconnected kids.
är ständigt uppkopplade.
they watch the Internet,
de surfar på internet,
cleaning up an oil spill bare-handed,
rensar upp oljespill med sina bara händer,
largest mangrove forest in Bangladesh.
världens största floddelta.
this is the water they bathe in,
vattnet man badar i,
this is the place where they live.
detta är platsen man lever på.
the mud is brown and oil is brown,
och oljan är brun,
what's in the water.
vad som finns i vattnet.
that's rather simple,
of a spectrometer,
through different substances
lysa igenom olika substanser
identify what's in the water.
vattnets innehåll.
a local problem,
ett närliggande problem,
and their sense of being creative
empati och sin kreativitet
by doing the second experiments,
att starta ett annat experiment,
and it's also closer to my heart.
som låg mig varmare om hjärtat.
till hälften fransman,
there was a massive earthquake in Japan.
jordbävningen i Japan 2011.
several giant waves --
att flera gigantiska flodvågor -
on the eastern coast of Japan.
på Japans östkust.
died in an instant.
dog ögonblickligen.
power plant of Fukushima,
i Fukushima havererade,
into the Pacific Ocean.
och ut i Stilla havet.
has traces of contamination of cesium-137.
you can measure Fukushima everywhere.
märker du av Fukushima överallt.
it can look like most of the radioactivity
att det mesta av radioaktiviteten
from the Japanese coast,
it looks like it's safe, it's blue.
ser ut att vara säkra, de blå.
more complicated than this.
every year since the accident,
vartenda år sedan olyckan,
and with other scientists,
med andra forskare,
ville vi ta med oss eleverna.
the parents wouldn't allow that to happen.
föräldrar skulle ogilla det.
to "Mission Control" --
till "sambandscentralen" -
the work seriously, but they really did
på allvar, men det gjorde de verkligen
with radioactivity their whole life.
med radioaktiviteten i resten av sina liv.
we collected that day,
we should be going next --
a very rough topographical map
skapade vi en enkel topografisk karta
the nuclear power plant.
real-time data for radioactivity,
radioaktivitetens utbredning i realtid,
to simulate the rainfall.
med vatten för att simulera regn.
that the radioactive dust
att det radioaktiva dammet
into the river system,
och ner i flodsystemen,
we organized this expedition,
organiserade vi en expedition,
to the nuclear power plant.
kommit kärnkraftverket.
from the nuclear power plant,
från kärnkraftverket,
we've invented and built.
vi själva utvecklat och byggt.
to hundreds of small bags
of the seabed radioactivity,
över radioaktiviteten på sjöbottnen,
where the fish will reproduce,
där fisk fortplantar sig
förbättrat säkerheten
and of your favorite sushi.
och för er favoritsushi.
to a remote problem to a global problem.
till ett regionalt till ett globalt.
to work at these different scales,
intressant sätt arbeta,
open-source technologies.
it's been increasingly frustrating
otroligt frustrerande
the damage that we have done.
mäta de skador vi åsamkat miljön.
to try to solve the problems.
försöka lösa problemen.
ska ta ett större steg
if we should just take a leap
to do all these things.
att lösa problemen på.
started to feel a little bit small,
site in Hong Kong,
the largest mega-space
and environmental impact.
och miljömässiga konsekvenser.
with wood, metal, chemistry,
trä, metaller, kemikalier,
pretty much everything there.
vad som helst där.
adults and kids can play together.
och vuxna kan skapa tillsammans.
kids' dreams can come true,
kan förverkligas, med vuxnas hjälp,
questions such as,
with renewable energy?
med förnyelsebar energi, till exempel?
of the aging population
en åldrande befolkning
into cool, electric vehicles?
till coola, elektriska fordon?
are horrible, horrible legacies,
är ett hemskt arv vi lämnar efter oss,
that we can leave our children is lies.
är att ljuga för våra barn.
to shield the kids from the ugly truth
att skydda våra barn
to invent the solutions.
för att hitta lösningar.
producenter, drömmare -
the environment and people,
do something about it.
ABOUT THE SPEAKER
Cesar Harada - Inventor, environmentalist, educatorTED Senior Fellow Cesar Harada aims to harness the forces of nature as he invents innovative remedies for man-made problems like oil spills and radioactive leaks.
Why you should listen
Cesar Harada believes that ocean currents, the wind and other naturally occuring phenomenon can provide unique inspiration and novel solutions to mankind’s worst disasters, like oil spills and radioactive leaks. A French-Japanese inventor and TED senior fellow, he is the creator of Protei, a revolutionary sailing technology -- featuring a front rudder, flexible hull and open-soure hardware -- that allows for efficient clean up of both oil and plastics from the sea. Currently based in London, Harada recently traveled to Japan and is designing Protei to measure radioactivity along the country's coast.
The general coordinator of the future International Ocean Station, Harada teaches at Goldsmiths University London. A former project leader at MIT, he graduated form the Royal College of Arts Design Interactions in London and worked at the Southampton University Hydrodynamics laboratory on wave energy. Harada has also studied animantion, and his films and installations have been seen at festivals and events across the world, from the United States to Japan.
Cesar Harada | Speaker | TED.com