Posts from the ‘earth’ Category
*ding* Solar cells are done!
Nope… that’s my lunch.
Microwave Ovens Can Make Greener Solar Cells
The same type of microwave oven technology that most people use to heat up leftover food has found an important application in the solar energy industry, providing a new way to make thin-film photovoltaic products with less energy, expense and environmental concerns.
Engineers at Oregon State Univ. have for the first time developed a way to use microwave heating in the synthesis of copper zinc tin sulfide, a promising solar cell compound that is less costly and toxic than some solar energy alternatives.
I’m not an optimist. I’m not a pessimist. I’m a scientist.
What if instead the glass was really half empty, and contained a vacuum and water?
Check out xkcd’s What If series to find amusing and informative answers to those slightly ridiculous questions that you’re too embarrassed to ask others!
The Forest of Pillars in Egypt’s Sinai Desert. Many believe the tubes were formed by lava, however it seems more likely to be ancient hydrothermal vents.
Dr. Bonnie Sampsell states:
“The rocks are composed of hematite (a form of iron oxide). The iron oxide was dissolved out of the sandstone bedrock, to which it imparts a reddish colour, by hot water emerging from deep in the earth. As the water reached the surface and cooled, the iron oxide precipitated in a ring around each source, forming a tube.”
Earth from MARS!
This is the first image ever taken of Earth from the surface of a planet beyond the Moon. It was taken by the Mars Exploration Rover Spirit one hour before sunrise on the 63rd Martian day, or sol, of its mission.
The image is a mosaic of images taken by the rover’s navigation camera showing a broad view of the sky, and an image taken by the rover’s panoramic camera of Earth. The contrast in the panoramic camera image was increased two times to make Earth easier to see.The inset shows a combination of four panoramic camera images zoomed in on Earth. The arrow points to Earth. Earth was too faint to be detected in images taken with the panoramic camera’s color filters.
Elephantalope? Antelephant? Nope, this is the Saiga antelope, a critically endangered species only found in a handful of places along the Asian steppes.