Archives June 2020

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.

Monday, October 19, 2009

A report accidentally published on the Internet provides insight into a secretive European Union surveillance project designed to monitor its citizens, as reported by Wikileaks earlier this month. Project INDECT aims to mine data from television, internet traffic, cellphone conversations, p2p file sharing and a range of other sources for crime prevention and threat prediction. The €14.68 million project began in January, 2009, and is scheduled to continue for five years under its current mandate.

INDECT produced the accidentally published report as part of their “Extraction of Information for Crime Prevention by Combining Web Derived Knowledge and Unstructured Data” project, but do not enumerate all potential applications of the search and surveillance technology. Police are discussed as a prime example of users, with Polish and British forces detailed as active project participants. INDECT is funded under the European Commission’s Seventh Framework Programme (FP7), and includes participation from Austria, Bulgaria, Czech Republic, France, Germany, Hungary, Poland, Slovakia, Spain, and the United Kingdom.

Indicated in the initial trial’s report, the scope of data collected is particularly broad; days of television news, radio, newspapers, and recorded telephone conversations are included. Several weeks of content from online sources were agglomerated, including mining Wikipedia for users’ and article subjects’ relations with others, organisations, and in-project movements.

Watermarking of published digital works such as film, audio, or other documents is discussed in the Project INDECT remit; its purpose is to integrate and track this information, its movement within the system and across the Internet. An unreleased promotional video for INDECT located on YouTube is shown to the right. The simplified example of the system in operation shows a file of documents with a visible INDECT-titled cover taken from an office and exchanged in a car park. How the police are alerted to the document theft is unclear in the video; as a “threat”, it would be the INDECT system’s job to predict it.

Throughout the video use of CCTV equipment, facial recognition, number plate reading, and aerial surveillance give friend-or-foe information with an overlaid map to authorities. The police proactively use this information to coordinate locating, pursuing, and capturing the document recipient. The file of documents is retrieved, and the recipient roughly detained.

Technology research performed as part of Project INDECT has clear use in countering industrial and international espionage, although the potential use in maintaining any security and predicting leaks is much broader. Quoted in the UK’s Daily Telegraph, Liberty’s director, Shami Chakrabarti, described a possible future implementation of INDECT as a “sinister step” with “positively chilling” repercussions Europe-wide.

“It is inevitable that the project has a sensitive dimension due to the security focussed goals of the project,” Suresh Manandhar, leader of the University of York researchers involved in the “Work Package 4” INDECT component, responded to Wikinews. “However, it is important to bear in mind that the scientific methods are much more general and has wider applications. The project will most likely have lot of commercial potential. The project has an Ethics board to oversee the project activities. As a responsible scientists [sic] it is of utmost importance to us that we conform to ethical guidelines.”

Although Wikinews attempted to contact Professor Helen Petrie of York University, the local member of Project INDECT’s Ethics board, no response was forthcoming. The professor’s area of expertise is universal access, and she has authored a variety of papers on web-accessibility for blind and disabled users. A full list of the Ethics board members is unavailable, making their suitability unassessable and distancing them from public accountability.

One potential application of Project INDECT would be implementation and enforcement of the U.K.’s “MoD Manual of Security“. The 2,389-page 2001 version passed to Wikileaks this month — commonly known as JSP-440, and marked “RESTRICTED” — goes into considerable detail on how, as a serious threat, investigative journalists should be monitored, and effectively thwarted; just the scenario the Project INDECT video could be portraying.

When approached by Wikinews about the implications of using INDECT, a representative of the U.K.’s Attorney General declined to comment on legal checks and balances such a system might require. Further U.K. enquiries were eventually referred to the Police Service of Northern Ireland, who have not yet responded.

Wikinews’ Brian McNeil contacted Eddan Katz, the International Affairs Director for the Electronic Frontier Foundation (E.F.F.). Katz last spoke to Wikinews in early 2008 on copyright, not long after taking his current position with the E.F.F. He was back in Brussels to speak to EU officials, Project INDECT was on his agenda too — having learned of it only two weeks earlier. Katz linked Project INDECT with a September report, NeoConopticon — The EU Security-Industrial Complex, authored by Ben Hayes for the Transnational Institute. The report raises serious questions about the heavy involvement of defence and IT companies in “security research”.

On the record, Katz answered a few questions for Wikinews.

((WN)) Is this illegal? Is this an invasion of privacy? Spying on citizens?

Eddan Katz When the European Parliament issued the September 5, 2001 report on the American ECHELON system they knew such an infrastructure is in violation of data protection law, undermines the values of privacy and is the first step towards a totalitarian surveillance information society.

((WN)) Who is making the decisions based on this information, about what?

E.K. What’s concerning to such a large extent is the fact that the projects seem to be agnostic to that question. These are the searching systems and those people that are working on it in these research labs do search technology anyway. […] but its inclusion in a database and its availability to law enforcement and its simultaneity of application that’s so concerning, […] because the people who built it aren’t thinking about those questions, and the social questions, and the political questions, and all this kind of stuff. [… It] seems like it’s intransparent, unaccountable.

The E.U. report Katz refers to was ratified just six days before the September 11 attacks that brought down the twin towers of the World Trade Center. In their analysis of the never-officially-recognised U.S. Echelon spy system it states, “[i]n principle, activities and measures undertaken for the purposes of state security or law enforcement do not fall within the scope of the EC Treaty.” On privacy and data-protection legislation enacted at E.U. level it comments, “[such does] not apply to ‘the processing of data/activities concerning public security, defence, state security (including the economic well-being of the state when the activities relate to state security matters) and the activities of the state in areas of criminal law'”.

Part of the remit in their analysis of Echelon was rumours of ‘commercial abuse’ of intelligence; “[i]f a Member State were to promote the use of an interception system, which was also used for industrial espionage, by allowing its own intelligence service to operate such a system or by giving foreign intelligence services access to its territory for this purpose, it would undoubtedly constitute a breach of EC law […] activities of this kind would be fundamentally at odds with the concept of a common market underpinning the EC Treaty, as it would amount to a distortion of competition”.

Ben Hayes’ NeoConoptiocon report, in a concluding section, “Following the money“, states, “[w]hat is happening in practice is that multinational corporations are using the ESRP [European Seventh Research Programme] to promote their own profit-driven agendas, while the EU is using the programme to further its own security and defence policy objectives. As suggested from the outset of this report, the kind of security described above represents a marriage of unchecked police powers and unbridled capitalism, at the expense of the democratic system.”

Sunday, September 28, 2008

Four people have been arrested on terrorism charges in Islington, London, England, after a suspected petrol bombing on the house of Martin Rynja, owner of book publishing company Gibson Square.

His company recently sparked controversy after buying the rights to publish The Jewel of Medina, a work of fiction by Sherry Jones depicting the Muslim prophet Muhammad and his child bride, Aisha.

The bombing, which occurred in the early hours of Saturday morning, led to the evacuation of the £2.5 million property in Lonsdale Square. Three men, aged 22, 30 and 40, were arrested at 2:25am BST by armed officers, two in Lonsdale Square, and one after being stopped near Angel tube station.

Police comments suggested that the trio had been under surveillance, and that they had advance knowledge of the plot and simply waited for the arsonists to strike, before arresting them.

On Saturday, a woman was arrested for obstructing police during their searches of four addresses – two in Walthamstow, and two in Ilford and Forest Gate.

Speaking earlier this month, Mr Rynja said that “The Jewel of Medina has become an important barometer of our time. As an independent publishing company, we feel strongly that we should not be afraid of the consequences of debate.” Ms Jones commented that she did not intend for her novel to be offensive to Islam. She noted that she “[has] deliberately and consciously written respectfully about Islam and Muhammad.” She “envisaged that [her] book would be a bridge builder” between Islam and the western world.

Monday, October 15, 2007

Sam Brownback is perplexed. The U.S. Senator from Kansas and Presidential candidate is a Republican whose politics—he is against marriage for gay people, he is against abortion, and he has a clean image in a party tainted by scandal—should speak favorably to the party’s base. But it has not. “I’m baffled by that myself,” Senator Brownback told Wikinews reporter David Shankbone. “We haven’t been able to raise money.”

A recent poll in Iowa has put him in eighth place, with 2% supporting his campaign. “If we don’t finish fourth or better in Iowa…we’ll pull out.”

Senator Brownback’s relationship with God infuses almost every answer you find below. Although he doesn’t feel “competent” to explain why God would dislike gays, he does feel strongly that allowing two men or two women to enter into the union of marriage will destroy it for heterosexuals. Pointing to the research of Stanley Kurtz at the Hoover Institution, Brownback asserts that Northern Europeans have “taken the sacredness out of the institution.”

In the interview, Senator Brownback discusses the tug-and-pull that befalls him when his constituents show up at his office and say, “Look, I’m a conservative, but we need this bridge, we need this subsidy, we need this hospital.” Brownback feels this spending system needs to be changed; however, when it comes to energy policy, Brownback is there for his constituents. David Shankbone asked the Kansas Senator, a supporter of cellulosic ethanol, why he doesn’t support the lowering of tariffs on sugar since sugar ethanol delivers 8 times the energy output of cellulosic ethanol. Brazil, in particular, has become energy independent because of its sugar ethanol program. It’s cheaper to produce, and there is vastly more bang for the buck in sugar fuel than in corn fuel; an entire country no longer needs to import oil because of it. Federal tariffs currently make sugar ethanol too expensive in the United States. “You’re going to kill the ethanol industry here just as it gets going,” was Senator Brownback’s response. However, there is a debate over whether the process to make corn ethanol uses more energy than the ethanol itself produces.

Below is David Shankbone’s interview with Senator Sam Brownback.

Friday, January 25, 2008

B2B Trade Area of Taipei Game Show, criticized by trade buyers last year, but accompanied with 2008 Taiwan Digital Content Forum, moved to the second floor at Taipei World Trade Center for world-wide participants with a better exchange atmosphere this year.

Not only local OBMs (Softstar Entertainment, Soft-World International Corp., International Games System Corp., …, etc.) but also companies from New Zealand, Canada, Japan, Hong Kong, and South Korea showcased different specialists with multiple styles. Especially on South Korea, participated members from G? Trade Show (Game Show & Trade, All-Round, aka Gstar) showcased gaming industry of South Korea and the G? upcoming at this November with brochures.

In the 2-days Digital Content Forum, world-class experts not only shared industry experiences, members from Taiwan Gaming Industry Association also discussed and forecasted marketing models for gaming industry. With participations from governmental, industrial, and academical executives world-wide, this forum helps them gained precious experiences of digital content industry from several countries.

According to the Taipei Computer Association, the show and forum organizer, the digital content industry in Taiwan was apparently grown up recent years as Minister of Economic Affairs of the Republic of China Steve Ruey-long Chen said at Opening Ceremony yesterday. Without R&Ds from cyber-gaming, and basic conceptions from policies and copyright issues, this (digital content) industry will be fallen down in Taiwan. If this industry wanted to be grown up in sustainability, gaming OBMs in Taiwan should independently produce different and unique games and change market style to market brands and games to the world.