分类目录归档：world
For most humans, farts are a welcome relief,
an embarrassing incident, or an opportunity for a gas-based gag.
But for many other creatures, farts are no laughing matter.
Deep in the bowels of the an
As of 2020, the world’s biggest lithium-ion battery
is hooked up to the Southern California power grid
and can provide 250 million watts of power,
or enough to power about 250,000 homes.
But it’s a
Thousands of years ago, the Romans invented a material
that allowed them to build much of their sprawling civilization.
Pliny the Elder praised an imposing sea wall made from the stuff
as “impregnabl
You flip a switch.
Coal burns in a furnace, which turns water into steam.
That steam spins a turbine, which activates a generator,
which pushes electrons through the wire.
This current propagates thro
Fourteen Greenlands could fit in Africa,
but you wouldn’t guess it from most maps of the world.
The fact is, every world map humans have ever made is wrong.
Actually, it’s impossible to make a map of
By the end of the 20th century,
the race to build the world's tallest skyscraper grinded to a halt.
Each new contender was only slightly taller than the one before,
and architects were running out of
These eight ferocious notes
open one of the most explosive pieces of music ever composed.
Ludwig van Beethoven’s Symphony Number Five
premiered in 1808, on a blisteringly cold Vienna night.
The piec
[Music]
[Applause]
hi now
this is not going to be a motivational
speech because a i'm not a motivational
speaker
and b uh motivational speakers get paid
well and
apparently tedx doesn't pay now um
so
[Music]
[Music]
[Applause]
we are
all born whole
we're born confident in who we are and
we're born knowing
we belong here from the first
breath we take our parents celebrate us
they celebrate our firs
hi everyone i'm nicole david and i'm a
former world squash champion and i've
represented malaysia for more than 20
years
i'm really excited to be here sharing on
this tedx sunway university session wi