Inexpensive microrobots capable of probing and manipulating individual cells and tissue for biological research and medical applications are
The post Microrobots armed with new force-sensing system to probe cells has been published on Technology Org.
Laston Kirkland originally shared:
How did Earth develop its current atmosphere? A study published in the journal Nature Geoscience links the composition of Earth’s nitrogen-rich atmosphere to the same tectonic forces that drive mountain-building and volcanism on our planet. It goes some way to explaining why, when compared to our nearest neighbors Venus and Mars, Earth’s air is richer in nitrogen.
The chemistry of the air we breathe is partially the result of billions of years of photosynthesis. Plant life has transformed our world from one cloaked in a carbon dioxide-rich atmosphere, as seen on Mars or Venus, to one with significant oxygen. About a fifth of the air is made up of oxygen, but almost all the rest is nitrogen—completely unlike Mars and Venus. The origins of the relatively high nitrogen content of Earth’s air have been something of a mystery.
Geoscientists Sami Mikhail and Dimitri Sverjensky of the Carnegie Institution of Washington have calculated what nitrogen is expected to do when the churning cycle of plate tectonics cycles it through the rocks of the deep Earth. Active volcanoes not only shower volcanic rock and superheated ash as they erupt molten rock into the air; they also vent huge amounts of gas from Earth’s depths. The latest eruptions in Iceland, for example, have been noted for the amount of sulfurous fumes they have emitted.
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A lamellar lens prototype has been successfully tested at DESY Researchers have taken an important step towards developing
The post New type of X-ray lens: Lamellar lens prototype has been successfully tested has been published on Technology Org.
3D printing guru Joshua Pearce wants nothing more than to provide the means of production to everyone, especially
The post 3D printing goes solar has been published on Technology Org.
