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Sunday, August 5, 2012

The following is the ninth in a monthly series chronicling the U.S. 2012 presidential election. It features original material compiled throughout the previous month after a brief mention of some of the month’s biggest stories.

In this month’s edition on the campaign trail: the rules of third party candidate polling are examined, a third party activist causes four other parties to lose their place on the Illinois presidential ballot, and the new vice presidential nominee of the Justice Party speaks with Wikinews.

1 Summary
2 Polling rules restrict and fuel third party campaigns
3 Ballot access denied in Illinois
4 Wikinews interviews newly-selected Justice Party VP nominee
5 Related news
6 Sources

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:

According to theory, a quantum state can encode any amount of information (at zero temperature), requiring only sufficiently high bandwidth and time in which to read it out. In practice, only recently has progress been made towards encoding several bits into the shapes of bosonic single-photon wave functions, which has applications in quantum key distribution. We have experimentally demonstrated that 35 bits can be permanently encoded into a time-independent fermionic state, and that two such states can be simultaneously prepared in the same area of space. We have simulated hundreds of stacked pairs of random 7 times 5-pixel arrays as well as various ideas for pathological bit patterns, and in every case the information was theoretically encodable. In all experimental attempts, extending down to the subatomic regime, the encoding was successful and the data were retrieved at 100% fidelity. We believe the limitations on bit size are approxlambda/4, but surprisingly the information density can be significantly boosted by using higher-energy electrons and stacking multiple pages holographically. Determining the full theoretical and practical limits of this technique—the trade-offs between information content (the number of pages and bits per page), contrast (the number of measurements required per bit to overcome noise), and the number of atoms in the hologram—will involve further work.—Quantum holographic encoding in a two-dimensional electron gas, Christopher R. Moon, Laila S. Mattos, Brian K. Foster, Gabriel Zeltzer & Hari C. Manoharan

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.

Friday, October 17, 2008

The British Association of Dermatologists (BAD) has released a report saying that an illness they named ‘mobile phone dermatitis’, in which individuals owning a cell phone have developed a rash on the side of their face, is likely linked to nickel deposits in the metal of some cellular phones. Nickel has been known to cause rashes on those who have a sensitivity to, or are allergic to the metal. Nickel is also mixed with other metals to make jewelry.

The Association says that the condition is likely to affect people who spend too much time talking on the phone. They found that those who spend too much time text messaging or talking for long periods on the phone, were most likely to develop a rash, sometimes severe, on their face and ears, or the tips of their fingers.

Tests in January, performed on 22 cellular phones by scientists at Brown University in Rhode Island located in the United States, had found that just under half, a total of 10, contained nickel while the rest had rubber buttons and a plastic case. Initially the rashes were unexplained, and researchers could not find a reason why so many individuals began to experience the symptoms. In most cases the rashes were untreatable.

“Cell phones intended for rugged use … often have rubber coating and no surface nickel. Those with more fashionable designs often have metallic accents and are more likely to contain free nickel in their casings,” said Lionel Bercovitch MD., one of the researchers, in a report in the journal for the Canadian Medical Association on January 1, 2008.

Researchers also state that although some people may not be allergic to nickel, “prolonged” and continuous exposure to it can cause severe reactions.

“Prolonged or repetitive contact with a nickel-containing phone is more likely to cause a skin reaction in those who are allergic,” said BAD dermatologist Dr. Graham Lowe in a press release. In the United Kingdom alone, BAD says nearly 30% of the population suffers from rashes brought on by prolonged exposure to the metal.

The researchers also recommend individuals to buy swab test kits to test for traces of nickel.

Monday, December 31, 2007

What would you tell your grandchildren about 2007 if they asked you about it in, let’s say, 20 year’s time? If the answer to a quiz question was 2007, what would the question be? The year that you first signed on to Facebook? The year Britney Spears and Amy Winehouse fell apart? The year author Kurt Vonnegut or mime Marcel Marceau died, both at 84?

Let’s take a look at some of the international stories of 2007. Links to the original Wikinews articles are in bold.

This is the category for music. See also the Music Portal.

Refresh this list to see the latest articles.

9 September 2018: US rapper Mac Miller dies at home in Los Angeles
18 August 2018: Singer Aretha Franklin, ‘queen of soul’, dies aged 76
15 May 2018: Netta wins Eurovision Song Contest for Israel
28 March 2018: K-pop band 100%’s lead singer Seo Minwoo dies
9 February 2018: Poet, lyricist, and digital activist John Perry Barlow dies, aged 70
18 January 2018: Irish rock band The Cranberries’ lead singer Dolores O’Riordan dies at 46
13 December 2017: Apple, Inc. confirms acquisition of Shazam
24 October 2017: Five United States ex-presidents raise relief funds at hurricane event
5 October 2017: US rock artist Tom Petty dies at 66
30 July 2017: British dancer and talent show winner Robert Anker dies in car accident aged 27

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Friday, January 27, 2006

On January 26, 2006, a massive boycott of dairy produce from Arla Foods started in Saudi Arabia over what is perceived as a Danish attack on Muslim values. The Saudi ambassador to Denmark has been recalled for consultations.

The Danish/Swedish dairy company Arla is facing a massive loss after a spreading boycott of its produce in Saudi Arabia. Four Saudi retail chains have already removed Arla products from the shelves. One retail chain has placed yellow warning tape (common fare for accidents and crime scenes) over Arla products. There have been cases reported of Arla delivery trucks being attacked by stones thrown from bystanders. Marianne Castenskiold, a senior consultant for Dansk Industri, expressed a fear that the boycott will spread to other countries in the region and have detrimental effects on other Danish products. Denmark is one of the leading exporters of agriculture in northern Europe, whose economy is heavily dependent on foreign trade and investment.

The boycott has been announced at Friday prayer services in Saudi mosques since January 20, 2006, obviously helping to foment popular support of the nation’s response to Denmark’s alleged ignorance of Muslim values. On at least one occasion, a delivery truck has been greeted by thrown stones.

The boycott is a response to the publication of an article in a major Danish newspaper, Jyllands-Posten. In its September 30, 2005 issue, the paper printed 12 drawings of the Muslim prophet Muhammed, as a response to previous news reports that the publisher of a forthcoming childrens’ book about the prophet had had difficulty in finding an illustrator, due to fear of extremist reactions; drawings of the prophet are prohibited by Islamic Law (see aniconism). In an attempt to start a debate over freedom of speech in Denmark, the newspaper printed 12 drawings of the prophet. Four of these were of a satirical nature, with one showing the prophet with a turban hiding a lit bomb.

The immediate reactions to the publication of the drawings included ambassadors from 12 Muslim countries demanding that the Danish Prime Minister, Anders Fogh Rasmussen, denounce the newspaper. Rasmussen rejected this demand, stating that “Danish freedom of speech does not allow the government to control what newspapers print”. He further noted that the only possible legal action against the newspaper would be one under the charge of blasphemy.

A debate ensued over the following months about freedom of speech and its value in relation to avoiding religious taboos. In mid-December 2005, a delegation from several Danish Muslim organizations went on a tour in several Middle-Eastern and Arabic countries, reportedly to gain sympathy for their point of view. Several reports state that during the tour the difficulties faced by Muslims in Denmark were grossly overstated.

Friday, July 20, 2007

Between 143 and 152 people have now been hospitalized in the wake of Monday’s train derailment near Lviv, Ukraine, and subsequent phosporous cloud. According to the Ukrainian Healthcare Ministry’s spokesperson, Igor Gerych, 43 of the injured are children, 13 are firemen and three are medical personnel. None are considered to be in mortal danger, yet some cases remain at medium risk level.

Nearly 400 people are involved with the clean-up operations. Among them are military specialists for chemical warfare. The Ukrainian Army alert state was raised to “high readiness” state on Tuesday, when the scale of the accident became clear. 27 medical brigades, 13 consultants and seven specialists are inspecting the surrounding inhabited areas.

Two of the fifteen phosphor containers that were involved in the accident have been raised and put on new transports; nine of them need more work to treat leaking and damaged areas. All containers are to be transported to a more secure location by Saturday.

The situation on the ground appears to be confusing. Political TV channel, Kanal 5, reports that the village closest to the accident, Ozhidovo, is still requesting volunteers to send medicines and water, as they do not have any. Journalists of three TV channels (Inter, Novyj Kanal, ICTV) needed medical care themselves after being in the village.

TV channel, UT-1 reports this evening that the Ukranian President, Viktor Yushchenko, has called an urgent meeting of the National Security Council.

The accident appears to be likely to become a topic of contention in the long-standing rivalry between the President and the Prime Minister Viktor Yanukovych. Yesterday, the President publicly criticized the government’s work.

Politicization of the disaster is likely to be the main reason behind the extreme differences among the versions of the Ukrainian media. Some declared the accident “ended” a few hours after it occurred, while others are still making alarming reports.

On July 18, the Monitoring and Information Centre (MIC) of the European Commission reportedly offered EU assistance to the Ukrainian government. The same sources say that Ukraine has not officially requested the help. Without a formal request, EU assistance cannot begin.

On the same date, NATO Spokesman in Brussels, Mr. James Appathurai, is reported by Podrobnosti to have declared that the Alliance is following the situation, and that NATO has not received any request for help from the Ukraine, either.

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On the campaign trail, July 2012

Contents

Stanford physicists print smallest-ever letters ‘SU’ at subatomic level of 1.5 nanometres tall

‘Mobile phone dermatitis’ linked to nickel deposits

Wikinews’ overview of the year 2007

Category:Music

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Pages in category “Music”

Media in category “Music”

Are Your Electricity Bills Too High?

Saudis boycott Danish dairy produce

Toll of the phosphor accident in Ukraine still rising

What Can Doctors In Maui Treat?