An evening pause: From the late 1950s, Alastair Cooke introduces Les Paul and Mary Ford, who then demonstrate some advanced music technology (and some smokin’ music) that would only become commonplace in the coming decades.
Not my idea of fun: A new roller coaster ride, dubbed “the Swarm,” is so intense it ripped the arms and legs off of its crash dummies during testing.
The difficulties making both wind and solar power practical sources of electrical power on the grid.
According to the U.S. Department of Energy, when intermittent sources such as solar or wind reach about 20 percent of a region’s total energy production, balancing supply and demand becomes extremely challenging: rolling blackouts can sometimes become inevitable. The same problem exists elsewhere, notably in Germany, where a vast photovoltaic capacity has sprung up thanks to generous subsidies.
The article proposes several reasonable solutions for storing power for use when there are lulls in wind or sunlight. All, however, appear costly, and all appear to end up making fossil fuels themselves more cost effective. For example,
A pumped-hydro facility consists of two reservoirs with a substantial drop in height between them. When there is excess electricity to go around, electric pumps move water from the lower reservoir into the upper one, thereby storing energy in the form of gravitational potential energy. When wind and solar wane or simply cannot keep up with demand, operators let water flow down and through turbines, generating electricity. In compressed-air facilities, excess electricity pumps air into underground caverns, and it is later released at high pressure to turn turbines.
Pumped hydro has been used for decades to balance the load on large U.S. grids. About 2.5 percent of the electricity used by U.S. consumers has cycled through one of these plants. In Europe the amount is 4 percent and in Japan 10 percent.
Reading this, I immediately asked, why not use this technology now to help reduce the amount of fossil fuels you need to burn? Japan seems to have figured this out. Why not us?
An evening pause. As Arthur Clarke once said, “Any sufficiently advanced science is indistinguishable from magic.”
The 3D printer that can build a house.
The D-Shape is potentially capable of printing a two story building – complete with stairs, partition walls, columns, domes, and piping cavities – using only ordinary sand and an inorganic binder. The resulting material is said to be indistinguishable from marble, and exhibits the same physical properties, with durability highly superior to that of masonry and reinforced concrete.
The building process is very close to what we’d expect of a huge 3D printer. A nozzle moves along a pre-programmed path, extruding a liquid adhesive compound on a bed of sand with a solid catalyst mixed in. The binding agent reacts with the catalyst, and the solidifying process begins. Meanwhile, the remaining sand serves to support the structure. Then, another layer of sand is added and the whole process is repeated. Since it’s computer assisted, no specialist knowledge is required to use the printer. All that’s needed is a CAD design file.
Ancient computers still in use today, including punch cards, mainframes, and the first PCs.
Not good: Another Airbus jumbo jet has been found with cracks in its wings.
Using heat to speed up computer hard drives.
Good news: A new superconducting detector might supersede CCDs for large astronomical telescopes.
Ben Mazin, an astronomer at the University of California, Santa Barbara, believes that he is on the cusp of a camera breakthrough: his lab is working on a superconducting detector that could eventually replace the charge-coupled devices (CCDs) that have become de rigueur in both consumer and astronomical digital cameras. Mazin’s detectors, known as microwave kinetic inductance detectors (MKIDs), can simultaneously count photons, measure their energy and record each one’s time of arrival — something that CCDs can do only after the light is split with a prism or a grating, an extra step that adds to the loss of photons.
And you know that inevitably some variation of this technology is going to find its way into ordinary commercial products.
As we spend more of our lives in cyberspace, we come to expect its primary characteristics (convenience, efficiency, abundance) to define our off-screen lives as well. And supertall, mixed-used skyscrapers are currently the most potent physical approximations of the virtual world we have. They’re environments designed for maximum convenience and efficiency, with elevators functioning like hypertext, taking you almost instantly from one mode of existence to the next. Push a button and you’re at work. Push another button, you’re at home.
There’s a lot more. Read the whole thing.
In a press event today, LightSquared announced that just-completed tests prove that its internet service will not interfere with GPS.
According to the company, the three private companies — Javad GNSS, PCTel and Partron — that make GPS equipment have been testing interference solutions and those tests have gone well. “Preliminary results show that GPS devices tested in the lab easily surpass performance standards thanks to these newly developed solutions,” Ahuja said. “We are confident that this independent testing will mirror testing being done by the federal government.”
Here’s another perspective:
Jim Kirkland, vice president of Trimble and a founding member of The Coalition to Save Our GPS, is trying to slow LightSquared’s momentum. “It is obviously extremely premature to claim at this point that these latest tests demonstrate that LightSquared’s proposed repurposing of the mobile satellite band for terrestrial operations is ‘compatible’ with high-precision GPS,” Kirkland says in a statement. “Even if new equipment solutions are fully tested and verified, these existing high-precision receivers will have to be retrofitted or replaced. LightSquared still refuses to accept the financial responsibility for addressing interference to existing devices, and so has not offered a comprehensive solution in any way, shape, or form.”
An evening pause: The robot obstacle course at the 2006 ROBO-ONE competition in Kawasaki, Japan. Very impressive, for a machine, though this does illustrate how difficult it is to artificially duplicate what life does so naturally.
A random collection of awesome things. In pictures.
Steve Jobs has passed away.
NASA has announced three awards for technology demonstration space missions, all set to fly within four years. More details here.
The three missions are:
I especially like the solar sail mission because of its long range possibilities, though the other technologies would probably be put to practical use more quickly.
Another anniversary: Thirty years ago today IBM introduced its first PC.
Battle of the browsers: Internet Explorer continues to lose market share to Chrome, Firefox, and others.
A massive Windows botnet is “almost indestructible,” say researchers.
The cost of rare earth metals used in electronics has soared to record levels in the past two weeks as China clamps down on illegal mining and limits supplies.
Big brother arrives: Starting in June all new cars will have a mandatory black box.
The installation and use of these black boxes can have infinite possibilities for local, state, and federal governments to monitor and record data for a number of other revenue programs that are currently under consideration. In March, the Congressional Budget Office (CBO) issued a proposal to institute a tax on mileage to help pay for the federal budget deficit. Additionally, local cities and counties can download information from these black boxes, and they can be used to issue driving citations after the fact in the case of speeding or not wearing a seat belt.
I think the value of my old used Subaru Forester has just gone up!
Video and images from the zero gravity beer test Plus some results!
Netflix now consumes 29.7 percent of the peak internet traffic in North America.
Private citizen has just donated $25 million for the construction of the Giant Magellan Telescope.
This is how it used to be done all the time: All the early giant telescopes built in the United States before World War II were financed by individuals or private foundations, with no or little government investment.
The proposed green replacements for the banned 100 watt incandescent bulbs, LEDs, cost $50 each.
The solar-powered plane, Solar Impulse, made its maiden international flight on Friday.
