分类目录归档：air
hi
my name is phil rosoni and today we're
going to get a paper airplane to fly
forever in this video we're going to do
what the wright brothers did
we're going to make an airplane which
stays flying a
uh hi
my name is maria i'm 15 years old and i
live in kiev
a very large city and today i want to
talk about
air pollution and how to avoid it
so why did i choose this topic
i have a friend that is suf
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[Applause]
when i was young
one of my favorite ways to relax is
under the vents of an air conditioner
it was the remedy to all of life's
problems
as that cold air sinks into your skin
from all
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in schools
we have already talked about human
evolution
how from deciding in the caves they
discovered fire bee
agriculture and rose to create grand
empires
how they conquered the depths of th
1969
the year we landed on the moon
but more importantly
i was seven years old
and i remember one day saying to my mom
that i really loved chocolate chip
cookies and i wanted more
her response
let me
let me tell you a story
once upon a time there was a people
living on an island
there were many many people oh perhaps a
hundred thousand of them
they lived contentedly on this island
until one day a