分类目录归档：solar
As a kid, I was fascinated with all things air and space.
I would watch Nova on PBS.
Our school would show Bill Nye the Science Guy.
When I was in elementary school, my next door neighbor,
he gave me
I would like to demonstrate for the first time in public
that it is possible to transmit a video
from a standard off-the-shelf LED lamp
to a solar cell with a laptop acting as a receiver.
There is no
Before I get to bulk of what I have to say,
I feel compelled just to mention a couple of things about myself.
I am not some mystical,
spiritual sort of person.
I'm a science writer.
I studied physics
It is almost the end of the winter,
and you've woken up to a cold house,
which is weird, because you left the heater on all night.
You turn on the light.
It's not working.
Actually, the coffee maker,
There's something really incredible happening.
So there's over a billion people
who have no access to energy whatsoever across the world,
620 million of them here in Africa.
It costs about 1,500 dolla
[A provocation from Danny Hillis:]
[It's time to start talking about engineering our climate]
What if there was a way to build a thermostat
that allowed you to turn down the temperature of the earth
a
You may have noticed that I'm wearing two different shoes.
It probably looks funny --
it definitely feels funny --
but I wanted to make a point.
Let's say my left shoe corresponds to a sustainable foo
NASA's always on the lookout for possible asteroid collision hazards,
so the Pan-STARRS telescope is scanning the sky every night.
Each morning, candidate objects are examined by Pan-STARRS staff
and
Last summer, I was hiking through the Austrian mountains.
And there, on top, I saw this beautiful, stone, remote hut,
and it had solar panels on it.
And every time I see solar panels, I get very enthu
On August 21, 2017
the shadow of the Moon will pass
from the west coast to the east coast of the U.S.
Our blue sky will turn black as night
and fill with stars,
and there will be a hole in the sky
whe