Archive for the 'Energy' Category
Posted by Jim Lewis on December 6th, 2010
Research and Science Education Subcommittee Chairman Dan Lipinski (IL-03) expressed his strong support for the National Nanotechnology Initiative’s draft Strategic Plan, in particular its focus on ensuring that America’s substantial investment in nanotech research and development is turned into new companies, products, and jobs.
Posted by Jim Lewis on November 11th, 2010
High-performance metal-insulator-metal (MIM) diodes made possibe by controlling quantum mechanical tunneling through an ultrathin insulator could change modern electronics.
Posted by Jim Lewis on November 5th, 2010
US National Nanotechnology Initiative wants your comments on its strategic plan.
Posted by Jim Lewis on November 4th, 2010
Hogg and Freitas provide a theoretical analysis of the power constraints when nanorobots rely entirely on ambient bloodstream oxygen and glucose and identify aspects of nanorobot design that significantly affect available power.
Posted by Jim Lewis on October 15th, 2010
An energy cell containing a lead zirconate titanate cantilever coated with a carbon nanotube film uses nanotechnology to produce electricity from scavenged light and thermal energy.
Posted by Christine Peterson on August 4th, 2010
The Space Studies Institute will hold Space Manufacturing 14 on Oct. 30-31, 2010 at NASA Ames here in Silicon Valley. Topics to be covered include: Session 1: Space Transportation Architecture Session 2: Closed Environment Life Support Systems Session 3: Robotics and Space Manufacturing Session 4: Extraterrestrial Prospecting Session 5: Engineering Materials from Non-Terrestrial Resources Session 6: Space [...]
Posted by Christine Peterson on June 1st, 2010
The U.S. President’s Council on Advisors on Science and Technology requested public input on a number of manufacturing topics including “molecular-level, atomically precise production.” Foresight joined with our sister organization IMM to produce a statement on Atomically Precise Manufacturing, now posted on the OpenPCAST site, with public voting and commenting still continuing, so join in the [...]
Posted by J. Storrs Hall on February 18th, 2010
Rob Freitas has a new paper up: Robert A. Freitas Jr., “Diamond Trees (Tropostats): A Molecular Manufacturing Based System for Compositional Atmospheric Homeostasis,” IMM Report 43, 10 February 2010 Abstract. The future technology of molecular manufacturing will enable long-term sequestration of atmospheric carbon in solid diamond products, along with sequestration of lesser masses of numerous [...]
Posted by J. Storrs Hall on December 7th, 2009
When I woke up this morning, it was nine degrees below zero, Celsius. It’s solidly overcast here, and what’s more, this time of year the sun doesn’t get much more than 20 degrees above the horizon — in the middle of an all-too-short day. My house has a footprint of about 200 square meters. At [...]
Posted by J. Storrs Hall on December 2nd, 2009
(Atomic Age, that is.) From the University of Chicago Library site: On December 2, 1942, scientists at the University of Chicago produced the world’s first self-sustaining nuclear chain reaction in a nuclear pile constructed in a squash court beneath the West Stands of Stagg Field, the University’s athletic stadium. This experiment, crucial to the control [...]
Posted by J. Storrs Hall on November 17th, 2009
Over at Nanoclast, Dexter Johnson writes: It seems when nanotech is applied to photovoltaics it can either boost their efficiency to new heights or it can cheapen their manufacturing process. But it never seems to provide a solution to both of these. It’s always a tradeoff: increased efficiency but difficult manufacturing processes or a cheaper [...]
Posted by J. Storrs Hall on November 14th, 2009
Technology Review: Self-Cleaning, Super-Absorbant Solar Cells. Amorphous-silicon solar cells patterned with nanoscale domes absorb more light–and shed water and dust.
Posted by Christine Peterson on September 21st, 2009
Josh Hall, on his way to catch a plane, sends us this news from Technology Review’s Katherine Bourzac: A California company is using silicon ink patterned on top of silicon wafers to boost the efficiency of solar cells. The Sunnyvale, CA, firm Innovalight says that the inkjet process is a cheaper route to more-efficient solar power. [...]
Posted by J. Storrs Hall on August 24th, 2009
Previous in series: VTOL So, how close are we to flying cars? For specificity, let’s pick a technological bar to hurdle that answers most of the objections to the concept we’ve seen as comments on the previous posts: It should be relatively high-powered compared to current light craft. It should be STOVL for safety and [...]
Posted by J. Storrs Hall on June 5th, 2009
What will your car run on in 2020 or 2030? What form of energy storage and transmission will allow intermittent energy sources, such as wind and solar, to be a viable input to the economy? There’s a good chance, of course, that cars will still run on gasoline — its demise has been predicted early [...]
Posted by J. Storrs Hall on June 2nd, 2009
Here’s a University of Rochester press release from 2006: Scientists at the University of Rochester have created a way to change the properties of almost any metal to render it, literally, black. The process, using an incredibly intense burst of laser light, holds the promise of making everything from fuel cells to a space telescope’s [...]
Posted by J. Storrs Hall on May 21st, 2009
If you connect a 12-volt battery to a 4-ohm lamp, 3 amps of current will flow through the circuit by Ohm’s Law, V=IR. Power = VI = 36 watts will be dissipated by the lamp. If you add a 2-ohm resistor in series with the lamp, the resistances add to 6 ohms, the current is [...]
Posted by J. Storrs Hall on May 19th, 2009
Two new items that are follow-ons to the Moore’s Law for Energy thread: A story at Technology Review about new electronics that improve the usable power from existing solar panels by 5-25%. The advance is new smarter electronics that allows for an inverter for each panel instead of one big one for the whole system. [...]
Posted by J. Storrs Hall on May 11th, 2009
There was a gratifyingly large response to last Friday’s post Acolytes of neo-Malthusian Apocalypticism. Several of the commenters seemed to think I was trying to refute the LtG model, but that would require a whole book instead of one blog post. I consider LtG to have been demolished in detail by people with a lot [...]
Posted by J. Storrs Hall on May 8th, 2009
When I was in college 35 years ago, there was a major fad of neo-Malthusian doom-mongering, led by the “Limits to Growth” book and movement. A retreat was organized from the college, and some concerned, environmentally conscious professors and students, myself included, went off for a concentrated seminar in which we educated each other about [...]