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Sunday, June 26, 2005

The median house price in the United States plunged 6.5% in May to $217,000. In February of 2005, the median price of a home was $237,300.

The Economist newspaper said in its June 16th issue; “In other words, it looks like the biggest bubble in history.” by way of reference to what is happening with housing prices in the USA and much of Europe.

Japan provides an example of how a boom can turn to bust. Property prices have dropped for 14 years in a row (40% from their peak in 1991); and yet, the rise in prices in Japan during the decade before 1991 was less than the increase over the past ten years in most of today’s “housing boom” countries.

The total value of residential property rose by more than $30 trillion over the past five years in developed economies, an increase equivalent to 100% of the combined GDPs of those countries. This increase dwarfs all previous house-price booms and is greater than the global stockmarket bubble in the late 1990s. Much of the recent housing activity is being driven by speculative demand. The National Association of Realtors (NAR) reported that 23% of all American houses bought in 2004 were for investment, not for owners to live in. Another 13% were bought as second homes. NAR also found that 42% of all first-time buyers made no down-payment on their home purchase last year.

Many investors are buying solely because they think prices will keep rising, which is a warning sign of a financial bubble. In Miami, Florida, as many as half of the original buyers resell new apartments even before they are built, and properties can change hands two or three times before somebody finally moves in.

Britain’s Royal Institution of Chartered Surveyors (RICS) reported prices have been falling for ten consecutive months. Forty nine percent of their surveyors reported falling prices in May. This was the weakest report since 1992 during Britain’s previous house-price bust.

Tuesday, August 1, 2017

Wikinews recently caught up with screenwriter and film producer Chad Ridgely to discuss his latest indie horror film, 6:66PM. The film is scheduled to show at the Buffalo Dreams Fantastic Film Festival in Buffalo, New York in November.

Wednesday, February 4, 2009

A new historic physics record has been set by scientists for exceedingly small writing, opening a new door to computing‘s future. Stanford University physicists have claimed to have written the letters “SU” at sub-atomic size.

Graduate students Christopher Moon, Laila Mattos, Brian Foster and Gabriel Zeltzer, under the direction of assistant professor of physics Hari Manoharan, have produced the world’s smallest lettering, which is approximately 1.5 nanometres tall, using a molecular projector, called Scanning Tunneling Microscope (STM) to push individual carbon monoxide molecules on a copper or silver sheet surface, based on interference of electron energy states.

A nanometre (Greek: ?????, nanos, dwarf; ?????, metr?, count) is a unit of length in the metric system, equal to one billionth of a metre (i.e., 10^-9 m or one millionth of a millimetre), and also equals ten Ångström, an internationally recognized non-SI unit of length. It is often associated with the field of nanotechnology.

“We miniaturised their size so drastically that we ended up with the smallest writing in history,” said Manoharan. “S” and “U,” the two letters in honor of their employer have been reduced so tiny in nanoimprint that if used to print out 32 volumes of an Encyclopedia, 2,000 times, the contents would easily fit on a pinhead.

In the world of downsizing, nanoscribes Manoharan and Moon have proven that information, if reduced in size smaller than an atom, can be stored in more compact form than previously thought. In computing jargon, small sizing results to greater speed and better computer data storage.

“Writing really small has a long history. We wondered: What are the limits? How far can you go? Because materials are made of atoms, it was always believed that if you continue scaling down, you’d end up at that fundamental limit. You’d hit a wall,” said Manoharan.

In writing the letters, the Stanford team utilized an electron‘s unique feature of “pinball table for electrons” — its ability to bounce between different quantum states. In the vibration-proof basement lab of Stanford’s Varian Physics Building, the physicists used a Scanning tunneling microscope in encoding the “S” and “U” within the patterns formed by the electron’s activity, called wave function, arranging carbon monoxide molecules in a very specific pattern on a copper or silver sheet surface.

“Imagine [the copper as] a very shallow pool of water into which we put some rocks [the carbon monoxide molecules]. The water waves scatter and interfere off the rocks, making well defined standing wave patterns,” Manoharan noted. If the “rocks” are placed just right, then the shapes of the waves will form any letters in the alphabet, the researchers said. They used the quantum properties of electrons, rather than photons, as their source of illumination.

According to the study, the atoms were ordered in a circular fashion, with a hole in the middle. A flow of electrons was thereafter fired at the copper support, which resulted into a ripple effect in between the existing atoms. These were pushed aside, and a holographic projection of the letters “SU” became visible in the space between them. “What we did is show that the atom is not the limit — that you can go below that,” Manoharan said.

“It’s difficult to properly express the size of their stacked S and U, but the equivalent would be 0.3 nanometres. This is sufficiently small that you could copy out the Encyclopaedia Britannica on the head of a pin not just once, but thousands of times over,” Manoharan and his nanohologram collaborator Christopher Moon explained.

The team has also shown the salient features of the holographic principle, a property of quantum gravity theories which resolves the black hole information paradox within string theory. They stacked “S” and the “U” – two layers, or pages, of information — within the hologram.

The team stressed their discovery was concentrating electrons in space, in essence, a wire, hoping such a structure could be used to wire together a super-fast quantum computer in the future. In essence, “these electron patterns can act as holograms, that pack information into subatomic spaces, which could one day lead to unlimited information storage,” the study states.

The “Conclusion” of the Stanford article goes as follows:

The team is not the first to design or print small letters, as attempts have been made since as early as 1960. In December 1959, Nobel Prize-winning physicist Richard Feynman, who delivered his now-legendary lecture entitled “There’s Plenty of Room at the Bottom,” promised new opportunities for those who “thought small.”

Feynman was an American physicist known for the path integral formulation of quantum mechanics, the theory of quantum electrodynamics and the physics of the superfluidity of supercooled liquid helium, as well as work in particle physics (he proposed the parton model).

Feynman offered two challenges at the annual meeting of the American Physical Society, held that year in Caltech, offering a $1000 prize to the first person to solve each of them. Both challenges involved nanotechnology, and the first prize was won by William McLellan, who solved the first. The first problem required someone to build a working electric motor that would fit inside a cube ¹/₆₄ inches on each side. McLellan achieved this feat by November 1960 with his 250-microgram 2000-rpm motor consisting of 13 separate parts.

In 1985, the prize for the second challenge was claimed by Stanford Tom Newman, who, working with electrical engineering professor Fabian Pease, used electron lithography. He wrote or engraved the first page of Charles Dickens’ A Tale of Two Cities, at the required scale, on the head of a pin, with a beam of electrons. The main problem he had before he could claim the prize was finding the text after he had written it; the head of the pin was a huge empty space compared with the text inscribed on it. Such small print could only be read with an electron microscope.

In 1989, however, Stanford lost its record, when Donald Eigler and Erhard Schweizer, scientists at IBM’s Almaden Research Center in San Jose were the first to position or manipulate 35 individual atoms of xenon one at a time to form the letters I, B and M using a STM. The atoms were pushed on the surface of the nickel to create letters 5nm tall.

In 1991, Japanese researchers managed to chisel 1.5 nm-tall characters onto a molybdenum disulphide crystal, using the same STM method. Hitachi, at that time, set the record for the smallest microscopic calligraphy ever designed. The Stanford effort failed to surpass the feat, but it, however, introduced a novel technique. Having equaled Hitachi’s record, the Stanford team went a step further. They used a holographic variation on the IBM technique, for instead of fixing the letters onto a support, the new method created them holographically.

In the scientific breakthrough, the Stanford team has now claimed they have written the smallest letters ever – assembled from subatomic-sized bits as small as 0.3 nanometers, or roughly one third of a billionth of a meter. The new super-mini letters created are 40 times smaller than the original effort and more than four times smaller than the IBM initials, states the paper Quantum holographic encoding in a two-dimensional electron gas, published online in the journal Nature Nanotechnology. The new sub-atomic size letters are around a third of the size of the atomic ones created by Eigler and Schweizer at IBM.

A subatomic particle is an elementary or composite particle smaller than an atom. Particle physics and nuclear physics are concerned with the study of these particles, their interactions, and non-atomic matter. Subatomic particles include the atomic constituents electrons, protons, and neutrons. Protons and neutrons are composite particles, consisting of quarks.

“Everyone can look around and see the growing amount of information we deal with on a daily basis. All that knowledge is out there. For society to move forward, we need a better way to process it, and store it more densely,” Manoharan said. “Although these projections are stable — they’ll last as long as none of the carbon dioxide molecules move — this technique is unlikely to revolutionize storage, as it’s currently a bit too challenging to determine and create the appropriate pattern of molecules to create a desired hologram,” the authors cautioned. Nevertheless, they suggest that “the practical limits of both the technique and the data density it enables merit further research.”

In 2000, it was Hari Manoharan, Christopher Lutz and Donald Eigler who first experimentally observed quantum mirage at the IBM Almaden Research Center in San Jose, California. In physics, a quantum mirage is a peculiar result in quantum chaos. Their study in a paper published in Nature, states they demonstrated that the Kondo resonance signature of a magnetic adatom located at one focus of an elliptically shaped quantum corral could be projected to, and made large at the other focus of the corral.

Wednesday, September 7, 2005

Evacuees from New Orleans arrived on Sunday and have continued to come to Utah, utilizing the facilities at Camp Williams, the training facility for the Utah National Guard, to house the incoming people. Flights from New Orleans to Salt Lake City International Airport provided by JetBlue Airways under a contract from FEMA have been shuttling people from New Orleans to many destinations throughout the United States, including Utah.

In addition, Utah Air National Guard relief missions transporting food and other supplies to New Orleans relief efforts have also been returning with people in the cargo areas of the airplanes on return flights. “In keeping with our mission to assist in the security and safety of our homeland, we stand trained, ready, and able to respond to the call to assist our fellow citizens in Louisiana, Mississippi and elsewhere,” said Maj. Gen. Brian Tarbet, Utah National Guard Adjutant General.

The people on board the airplanes had no idea where they were going. In one case the airplane was headed to San Antonio and at the last minute while still airborne the destination was changed to Utah. Peter Coroon, Salt Lake County Mayor: “Some of the people look dazed. Some of them are just happy to be out of where they were. Some of them are eager to find their loves ones they’ve been separated. Some of them weren’t sure where they were going when they left New Orleans.”

Governor John Huntsman, Jr. utilized surplus state funds by declaring a state of emergency to begin efforts housing and clothing people coming to Utah, however some of this will likely be reimbursed by the Federal Government at a later date. He announced that Utah was willing to take up to 1,000 people at shelters in Utah, and that amount was later increased to over 2,000. On Monday, President Bush signed an executive order granting the emergency declaration in Utah to provide Federal assistance for the evacuees in Utah.

After arriving in Utah, one evacuee said “I want to thank the people of Utah for their hospitality and for restoring my faith in America.” Another evacuee said “it seems like heaven, looking at the mountains and getting a breath of fresh air and saying, ‘Thank God we made it.'”

Not all evacuees were pleased with the move to Utah. “I knew where Utah was, but nobody told me that’s where we were going. Nothing personal. It’s nice. But I don’t know anybody here,” said Bergeron, among the first batch of 152 evacuees to arrive at the Camp Williams Utah Army National Guard training site.

The Utah chapter of the American Red Cross has been training volunteers over the Labor Day weekend, and according to one official they have been overwhelmed with community support to help the evacuees. The line of volunteers to receive the training helping those at Camp Williams was litterally out of the door at the Red Cross offices today. One volunteer, Kayelynn Wright said, “The last couple of days we’d talked about it and said, ‘What can we do?’ So when I saw it (a call for volunteers) last night, I called (my neighbor) this morning and said, ‘We gotta go!'” The Red Cross has asked that you contact the local office if you plan on volunteering or donating any new clothing and other items to help the evacuees.

Volunteers from The Church of Jesus Christ of Latter-day Saints on Saturday gathered at the LDS Humanitarian Center in Salt Lake to assemble more than 50,000 hygiene kits for hurricane victims. Plastic bags were stuffed with toothbrushes and toothpaste, combs, soap, washcloths and hand towels. The supplies will be shipped to a church-owned storehouse Georgia for distribution.

Transportation requests are also being honored by the Utah state government, and evacuees are having transportation to anywhere in the United States paid for at state expense. In addition, a small amount of extra money is being donated directly to each family to help with immediate expenses. The Utah Transit Authority has already established a regular municipal bus service between Camp William and downtown Salt Lake City, which will begin formal service starting tomorrow morning.