ADVERTISEMENT
  About the SA Blog Network

Posts Tagged "solar energy"

Anecdotes from the Archive

Let the sun shine in…all day long

rotating house

Like many Americans, I have recently been diagnosed with a vitamin D deficiency. In addition to drinking milk, eating dark leafy greens, and taking 2000 IU’s of D a day, I’ve also been trying to get as much sunlight as possible. When I came across this article in the November 7, 1903 Scientific American, I [...]

Keep reading »
Life, Unbounded

Plant Life Floods Earth’s Atmosphere

629px-Cloud_forest_mount_kinabalu

A new study estimates that 80 to 90 percent of the atmospheric water vapor originating from Earth’s continents comes from plant transpiration rather than simple physical evaporation. This process uses up almost half of the solar energy absorbed by our landmasses and represents a major piece of our terrestrial climate system. There may be implications [...]

Keep reading »
Observations

Fight over Solar Power Returns to White House Roof [Video]

obama-white-house-solar-panels-installed

The sunshine that warms Washington, D.C. is once again generating electricity for the White House. After an absence of nearly 30 years, the Obama administration has announced that a 6.3 kilowatt photovoltaic installation of the “typical size for an American house,” is back on the White House roof and generating power. The Obama administration had [...]

Keep reading »
Observations

Solar-Powered Ford Aims to Drive Off-Grid

Ford,solar,CES,auto

Solar-powered cars have been little more than a novelty to date, experimental vehicles resembling photovoltaic-laden surfboards designed mostly for racing across deserts. Expensive batteries, relatively inefficient PV energy conversion and the lack of intense sunlight in many places have made sun-powered passenger vehicles impractical. Ford is looking to change that with a version of its [...]

Keep reading »
Observations

Lindau Nobel Laureate Meeting: From the Big Bang to the Big Controversy (aka Climate Change)

The first morning lecture series for the Lindau Nobel Laureate Meeting, which is focused on physics for this, its 62nd anniversary year, got off to a cosmic start, tracing the origins and evolution of the universe, before crashing back to Earth with a discussion of climate change. (You can read all our coverage this week, [...]

Keep reading »
Observations

Sunshine is free, so can photovoltaics be cheap?

Here’s how to make a solar cell from silicon: take one solid block of doped silicon, saw it into thin wafers, layer said semiconductors beneath a panel of transparent glass, connect them to a metal electrode that can channel away the electrons knocked loose by incoming photons and turn it into a photovoltaic device. That [...]

Keep reading »
Observations

Shift happens: Will artificial photosynthesis power the world?

One drinking-water bottle could provide enough energy for an entire household in the developing world if Dan Nocera has his way. A chemist from M.I.T. and founder of the company Sun Catalytix, Nocera has developed a cobalt-based catalyst that allows him to store energy the same way plants do: by splitting water. "Almost all the [...]

Keep reading »

More from Scientific American

Scientific American Back To School

Back to School Sale!

12 Digital Issues + 4 Years of Archive Access just $19.99

Order Now >

X

Email this Article



This function is currently unavailable

X