分类目录归档：water
cholera was reported in Haiti for the
first time in over 50 years last October
there was no way to predict how far it
would spread through water supplies and
how bad the situation would get and not
kn
tonight I wanted to have a conversation
about this incredible global issue
that's at the intersection of land use
food and environments something we can
all relate to and what I've been calling
the ot
Why does salt dissolve in water but oil doesn't?
Well, in a word, chemistry,
but that's not very satisfying, is it?
Well, the reason salt dissolves and oil does not
comes down to the two big reasons
w
Water is the liquid of life.
We drink it,
we bathe in it,
we farm,
cook,
and clean with it.
It's the most abundant molecule in our bodies.
In fact, every life form we know of
would die without it.
But
It has no taste, color or smell, and we often look right through it.
It covers over 70% of the Earth,
cycling from the oceans and rivers to the clouds and back again.
It even makes up about 60% of our
Sometimes when a fish is reeled up to the surface
it will appear inflated,
with its eyes bulging out of their sockets
and its stomach projecting out of its mouth,
as if its been blown up like a ball
Water is virtually everywhere,
from soil moisture and ice caps,
to the cells inside our own bodies.
Depending on factors like location,
fat index,
age,
and sex,
the average human is between 55-60% wat
One foggy morning in 1884,
the British steamer "Rumney" crashed into the French ship "Frigorifique."
Seeing their ship filling with water,
the French crew climbed aboard the "Rumney."
But as they sai
Take a look at the water in this glass.
Refreshing, hydrating, and invaluable to your survival.
Before you take a sip, though,
how do you know that the water inside is free from disease-causing organi
As far as we know,
there’s only one thing in our solar system sophisticated enough to study itself:
the human brain.
But this self-investigation is incredibly challenging;
a living brain is shielded