Saturday, October 3, 2015

IBM’s New Carbon Nanotubes Could Move Chips Beyond Silicon

THIS PAST WEEKEND, The New York Times took the temperature of Moore’s Law, the fifty-year-old notion that the number of transistors packed into a computer chip will double every 18 months.
The “law” has proven true, time and again, since it was laid down in the mid-1960s by Gordon Moore, co-founder of Intel, now the world’s largest chip maker, and this played an essential role in the rapid evolution of computing devices over the past five decades. More transistors mean you can juggle more data at greater speed, which, in turn, drives the progress of everything from smartphones, smart watches, and smart thermostats to the vast networks of computers that underpin Google, Facebook, and Twitter. But now, Moore’s Law is slowing down. Transistor counts double only every two years or so, and some fear that progress will soon hit a wall. In The Times, the headline read: “Smaller, Faster, Cheaper, Over.”
'It's a major step towards having reassurance that we'll have semiconductors working beyond the limits of silicon. Moore's Law can continue on.'RICHARD DOHERTY, ENVISIONEERING
The way forward is unclear. But today, IBM unveiled research that could provide some guidance. In a paper published in the journalScience, company researchers described a new means of building transistors with carbon nanotubes—microscopic sheets of carbon rolled into cylinders—and this could eventually yield viable transistors that are significantly smaller than what we have today. To wit, it provides new hope for Moore’s law.
“I don’t think that chip-scaling will be ended by physics,” says Wilfried Haensch, a senior manager in IBM’s research arm who helps oversee the company’s chip work. In other words, Haensch believes that materials like carbon nanotubes can continue to yield smaller transistors for years to come. he only thing that will stop Moore’s Law, he says, is the economics of building these transistors for a mass audience.

The Incredible Shrinking Transistor

Scientists have already shown that carbon nanotubes can operate as transistors—electrical switches—when shrunk down to fewer than 10 nanometers, about 1,000 times smaller than a human hair. And the thinking is that we can shrink these tiny tubes much further. But below the 10nm range, carbon nanotubes haven’t maintained the performance of larger transistors—until now. IBM has shown that it can build 10-nanometer carbon nanotubes without sacrificing speed.
This is very much a research project. “It’s still in the concept phase,” Haensch says. IBM has yet to prove it can use its methods to produce commercial chips en masse. But its research shows that carbon nanotubes could provide an alternative when other materials hit the proverbial wall.
Today, companies like Intel build chips from silicon, offering commercial products whose smallest features are about 14 nanometers. But Intel plans to release 10nm silicon chips over the next two years. And IBM has previously said that can build a chip from silicon and germanium whose smallest features are in the 7nm range, planning to license its designs to various chip makers. With its carbon nanotube work, the company hopes to take this transistor trend even further. IBM believes it can eventually build carbon nanotube transistors as small as 5 nanometers—and maybe even smaller.

Out the Door

A transistor is essentially a switch made from three basic components: a source, a gate, and a drain. When a certain voltage is applied to the gate, current flows through a channel from the source to the drain, and the transistor is “on.” Apply another voltage, the current stops, and the transistor is “off.”
In shrinking carbon nanotubes, which serve as the channel of the transistor, scientists must also shrink the source and the drain, known as “contacts.” In the past, Haensch says, IBM has successfully shrunk these contacts to less 10 nanometers, but this came at a cost. As the contacts got smaller, electrical resistance increased, and that hindered the transistor’s performance. “The resistance shoots up so high, the device that you want to control doesn’t really matter anymore,” Haensch says. “Everything is dominated by the contacts.”
'You always have enough space to get out of the car. There is no limiting factor.'WILFRIED HAENSCH, IBM
To explain this, Haensch compares a chip to a parking garage. Just as he and his team are working to squeeze as many transistors as possible into a chip, a dude running a parking garage wants to squeeze in as many parking spots as he can. But he can’t shrink the spots without thinking about people getting in and out of their cars. “If park your car, you get really upset if you can’t open the door,” he says. “The space that you have to open your door is kind of like the contact. You have to make sure the current can enter and leave.”
So, Haensch and his team have changed the way they build contacts, welding a metal called molybdenum to the ends of those microscopic carbon nanotubes, and this keeps resistance low. “You always have enough space to get out of the car,” he says. “There is no limiting factor.”
This also means that the team can adjust the size of the channel and the contacts to suit their needs. “We can scale channel and contact in the same way. Or we can make the contact longer and the channel shorter,” Haensch says. “This gives you more flexibility as you try to reach your scaling goal.”
Richard Doherty, the director of technology consulting firm Envisioneering and an electro-physicist by training, sees IBM’s work as a vitally important breakthrough. It gives carbon nanotubes significantly more potential. “It’s a major step towards having reassurance that we’ll have semiconductors working beyond the limits of silicon,” he says. “Moore’s Law can continue on.”

People always think I'm a lesbian - Juliet Ibrahim (VIDEO)

People always think I'm a lesbian - Juliet Ibrahim (VIDEO)

Juliet Ibrahim has opined that she sees nothing wrong with a female who experiences romantic love or sexual attraction with other females.
The humanitarian of Lebanese, Liberian and Ghanaian descent in a recent chat with revealed that she has only kissed a lady once but has never slept with a woman in her life.
“I’m not a lesbian. You will be wondering why I’m saying this because people always think I’m a lesbian. I always get questions when I play movie roles and stuffs but I’ve only kissed a girl once and that was in a movie and that was because I had to play a role. I’ve never been with a lady before".
She emphasized that “there is nothing wrong with it. You can do your thing if you like it, but I haven’t been with a girl before”.
Below are the five things you didn't know about Juliet Ibrahim:
  • She never smokes
  • She has never been drunk in her life. She knows her limit when drinking and won’t drink to throw up and act up
  • She was singing in a choir.
  • She has a very bad temper.
  • She is not a lesbian.
- See more at:

Instead of Gimmicks, Google Brings Real Broadband to Ghana

Osu district, Accra, Ghana.

A FEW DAYS ago Mark Zuckerberg, Bono, Bill Gates, Richard Branson and a host of other business leaders signed a declaration calling on world leaders to bring the Internet to the entire planet’s population by 2020. There’s certainly no shortage of schemes for making this happen. Facebook is building solar-powered drones that act as flying Wi-Fi hotspots. Branson is backing OneWeb, a company that plans to launch hundreds of low-orbit satellites to blanket the entire globe with Internet access. Elon Musk’s SpaceX is looking into much the same thing. Google, not to be left out of all the fun, is readying Project Loon, a fleet of high-altitude balloons designed to bring the Internet to remote areas. But the company also has a more down-to-earth project.
Today Google announced that it’s hard at work trenching pipe for a fiber optic network to serve the cities Accra and Kumasi in Ghana as part of its little-known Project Linkinitiative, which already provides broadband Internet to Kampala, the capital of Uganda. And while it may be boring compared to drones and satellites, it has the potential to improve access to the millions of people living in these cities.
“The goal is to bring abundant Internet access to the people who need it most,” says Google Ghana country manager Estelle Akofio-Sowah.
Google broke ground on the new 1,000-kilometer fiber network in June and is on track to offer the service to its first customers by the end of 2016, according to Akofio-Sowah.
Project Link is bringing the Internet to developing nations the old-fashioned way: with pipes full of cables buried in the dirt.
Unlike Google Fiber, which sells high-speed Internet directly to consumers in a handful of US cities, Project Link sells broadband capacity to other Internet service providers and mobile carriers. In other words, it’s an Internet backbone provider, aimed at bringing the Internet to developing nations the old-fashioned way: with pipes full of cables buried in the dirt. Some analysts believe this will be a cheaper and far more reliable way to bring broadband Internet to the four million people who don’t yet have access than more experimental projects like satellites and drones.
Africa’s broadband capacity has already gotten a massive boost in recent years from new undersea cables like Seacomon the continent’s east coast and Main One on the west coast. But bringing that capacity from the coast into the continents’s cities is another problem entirely, and that’s the issue that Project Link is trying to solve. Google certainly isn’t alone in trying to bridge this gap. The Mauritius-based company Liquid Telecom, for example, is working to bring broadband to landlocked countries like Zambia. But with any luck, Google’s involvement could help attract more investment on the continent.
The first Project Link network, quietly announced in late 2013, brought more broadband to the landlocked country of Uganda. Ghana, on the other hand, is one of the continent’s better connected countries, with multiple undersea cables connecting the nation to the rest of the world. Still, Akofio-Sowah, who was the managing director of the Ghanaian Internet service provider Busy Internet before joining Google, says that Internet capacity hasn’t really reached the public yet and that Internet access in the country is still too unreliable and inexpensive for most. “There are people who want to use the Internet, build apps, run their businesses online,” she says. “But they simply can’t.”
By piping additional bandwidth into Ghana’s largest cities, Project Link will ideally make Internet connections both cheaper and more reliable. But there may still be a role for Project Loon, which Akofio-Sowah says would be useful for bringing Internet access to more remote parts of the country.
“I would love to have some balloons fling over Ghana,” she says. “But unfortunately I’m not the decision maker on that one.”


Largest Fried Rice, Costa Rica 2013
Largest Fried Rice, Costa Rica 2013

In 2013, Costa Rica grabbed that title when some 52 chefs and 20 assistants came together in that country to prepare the largest fried rice in one bowl, according to the World Record Academy.

Costa Rica earned the title by preparing a 1.3-ton bowl of fried rice. But on Saturday Ghana would attempt to break that record by preparing 3.0 tons of rice in one bowl right at the Independence Square in the country’s capital, Accra.

The food would be shared to an estimated 3,000 street children in Accra and its environs.

Several of the country’s celebrities and showbiz personalities have already signed as volunteers to help in serving the food to the street children and joining them to have fun and other entertainment activities on the day.

Saturday’s event, dubbed “Diamond Cement’s Largest Buffet”, has the tagline ‘Dare To Care: Feeding Accra’s Street Children’ and is organised by BBnZ.

A BBnZ official said the company could have prided itself in setting a world record in something else but it was touched by the plight of the about 90,000 street children in Accra alone.

The official expressed excitement at the idea of setting a world record while touching humanity, especially children, in a very meaningful way.

“We are also sharing to the children learning materials including pens, pencils, exercise books, erasers, toys and other products including drinks and confectionaries,” he added and expressed hope that it would become an annual event.

Saturday’s event starts from 10 to 4 pm and will be laced with music and dance performances.

Thursday, October 1, 2015

Judges Scandal: 'Anas is a spirit', says sobbing judge

'Anas is a spirit', says sobbing judge
Believe it or not, one of the Judges, who have been appearing before the committee set up to probe the corruption scandal that has rocked the Judiciary has told this paper that The New Crusading GUIDE’s ace investigative reporter, Anas Aremeyaw Anas, is a spirit.

 Speaking to the paper under strict anonymity, the Judge, who has already confessed to taking the bribe to the committee said, “I knew that there was trouble coming because, as soon as he gave me the money, he disappeared from the sofa he was sitting on. I was sweating and did not know what to do so I knew this day would come. 

That is why I have confessed that I took the money because I am afraid he may use the spirit to kill me if am not truthful. The Judge said he did not argue with the committee because he could remember vividly that he took the money to influence the case and would be ashamed not to admit it. 

He warned his other colleagues who are fighting that their efforts would be in vain because they are not dealing with a mortal but a spirit. Continuing his story, he said when Anas disappeared from the sofa, he, out of fear rushed outside and saw a white sheep, pure white sheep, walking away from the house but was quick to add that “What I am not sure is whether Anas had turned into that white sheep or had vanished, but I knew that was the end, and that is why am not arguing”. 

Asked what he would do next, he said he was praying that the committee would not make his case criminal and asked Ghanaians to pray for him to go away quietly since he had confessed, and therefore is more honourable than the rest who know they have taken the money yet sit around and seeking to fight a fruitless battle. Asked about the suspension by the CJ, he said that it was proper, and that even if the CJ had not suspended him, he could not have sat in the court anymore, he said whilst sobbing. 

On the screening of the video, the Judge opined that it was better for everything to come out as soon as possible than delay. “So I don’t mind the shaming because I was prepared for the consequence”. Q; How did you prepare, for this piece of news? Ans: As soon as I received my letter from CJ, I called my wife and two children and asked them to forgive me. 

I narrated the whole story to them. It was a sad day but they gave me strength and called our family pastor to join us. I got counsel and I know it was better to accept your short-comings and seek to change your old ways for a better tomorrow, said the learned Judge. On whether people had called him on the incident, he said, “I quickly changed my line to avoid unnecessary calls from friends and family so I am just hanging on to see when the committee will finish with its final work and see where my fate lies, he said amidst his palm supporting his chin”.

 He is therefore warning all those fighting to beware of who they are fighting with and that they are likely to face the wrath of some spirits if they continued. “I have seen it and I know that I am talking about". 

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