
Friday, January 8, 2010
A Newer, Faster External Hard Drive

A Revolution In PC Gaming
Quantum computing
Quantum computing is the control and observation of quantum particles. Researchers have newly discovered two different ways to place an electron in a nano-sized device on a silicon chip. A quantum computer processor is made up of several quantum bits bundled together. An artificial atom or a quantum dot is a localized single electron that is not attached to an atom. The quantum dot made it easier to introduce the single atom in a silicon disk.
The quantum computer’s power is generated by the electrons spin. The spin can point in one of two directions, imitating the one’s and zero’s in today’s computer system. Electrons also have the ability to stay in a specific spin position, allowing energy to be created, by the electrons.
This break through is the basis of more complex things to come. For example, researchers are working on trying to control the electron’s quantum state for observational reasons.
http://www.unsw.edu.au/news/pad/articles/2010/jan/quantum_computing.html
A Helmet to Prevent Paralysis
TV on the go- Once again
Silicon Microwires Could Have a Sunny Future
http://www.technologyreview.
The attractions of solar power's enormous benefits have led
scientists to race to find a way to create inexpensive, optimally efficient
way solar cells. This venture has been broadly and avidly taken on for many
years by numerous scientists, who have come up with different ways of
creating solar cells. But, none of them are really cost-effective or
sufficiently usable. Recently, it has been found that silicon microwires may
be the solution. Efforts to develop ultra-thin wires that convert sunlight
into electricity have been happening for quite a while in the solar power
research field, but a new method for growing the wires involving silicon
microwires, has roughly doubled their conversion efficiency and may be the
key to advancing further. "All wires thus far have had 1 or 2 percent
efficiency [at the array level] with fundamental questions about whether
they could ever go higher," says Nathan Lewis, a chemist at Caltech who coauthored the study, which appears in *Science.*" It is possible that it can go all the way up to 10% efficiency
an inexpensive method.
Silicon nanowires are usually grown from a silicon substrate with the help
of tiny gold droplets. Under high temperatures, a single wire will quickly
sprout from each droplet like a blade of grass. Gold is an excellent
catalyst for wire growth, but it also introduces impurities that are
generally believed to inhibit electron transport within the wires, reducing
their overall efficiency. By using copper as a better, cheaper alternative,
efficiency rates nearly doubled from the previous wires that came from the
gold, because of higher silicon purity and increased electron transport
capacity. With the development of this new technology, we could be well on
our way to establishing solar power panels throughout the world, at a much
more reasonable price and an excellent usability with innumerous benefits.
2020 - You may see a different Internet
According to U.S computer scientists, in 2020 the internet may no longer be recognized. The internet is a place filled with spam, phishing, and latency. The idea in 10 years is to create an Internet without so many security breaches, containing a higher level of trust as well as built-in identity management. Currently, scientists are trying to build an Internet that is higher performing and more reliable. This new internet will most likely be able to extend to some of the most remote regions of the world . . . even other planets! One reason for this idea of creating a new internet for the futureis because some experts fear that the Internet will collapse under the weight of many cyber-attacks. The biggest goal is to make the Internet more secure. GENI, Global Environment for Network Innovations, is an internet research project that has developed an experiment network infrastructure that is being installed in many universities throughout the United States. This new infrastructure allows researchers to run large experiments of new Internet architectures next to the daily traffic on the Internet today, but not interfering with it. "When we use today's Internet, you and I can buy any application program that we want and run it….GENI takes this idea several steps further. It allows you to install any software you want deep into the network anywhere you want. You can program switches and routers," said Chip Elliot, GENI Project Director. The GENI project contains three types of network infrastructures. If the plan doesn't work out by 2020, U.S Computer Scientists believe that something will have to be done to improve the Internets security. Security is the biggest reason these ideas are being tested and these new ideas may even become reality in the future.
http://www.networkworld.com/
Thursday, January 7, 2010
Artificial Red Blood Cells for Drug Delivery
Most people are aware of the oxygen carrying capacity of red blood cells and their place in the circulatory system. The physical characteristics of red blood cells allow them to squeeze through the small capillaries in our bodies. However, the development of similar synthetic cells have not been successful till the University of California along with researchers in the University of Michigan created spherical particles made out of a polymer poly(lactic-co-glycolic acid (PLGA), “a compound known for its biocompatible and biodegradable properties.”
When exposed to rubbing alcohol, the spherical particles of PLGA were able to be dissolved and form the double concaved shape of a RBC (red blood cell). Then, the hard PLGA becomes the mold in which researchers add layers of proteins on, cross linking them to make them hold the PLGA. (These proteins are like the thousand different polymers that people have for delivery naturally, hemoglobin for example is the oxygen caring polymer found in RBC.) Afterwards, the “rigid inner structure” is dissolved and what is left is a flexible shell capable of going through capillaries.
The most difficult test is whether these artificial RBC will be able to stay in circulation. In the past, “even synthetic cells one-eighth of the size of regular blood cells were purged from the blood within 30 seconds.” The longest lasting nanoparticle only lasted 24 hours. This will be a crucial aspect, especially to ensure that no immune attack is produced through these synthetic cells.
Synthetic RBCs are still in its early stages but promise success. These synthetic RBC can be used as therapeutic and imaging agents. It has even produced the ideas for perhaps mimicking the delivery systems of viruses and bacteria as well. Perhaps one day it will lead to synthetic blood. Unfortunately for animal lovers, the next step for these cells seems to be animal testing.
Cites:
Tuesday, January 5, 2010
Kill Your Phone Remotely
that one puts on it may be more valued. Information such as phone
numbers, appointment times, and addresses may be stored in a phone.
More importantly credit card numbers and bank accounts are stored in a
phones memory. A common fear is when a phone is lost or stolen and the
device is put into the wrong hands.
Many handheld devices today have a lockout code, which unless you
have the right password, does not unlock. While the device is locked
you are unable to use any of the phones features except for call an
emergency number such as 911. But what if you're phone is lost or
stolen and you have important personal information on it such as
credit card numbers? Luckily, new phone features such as Apples
"MobileMe" service are created. The objective is to remotely wipe the
phones memory, so important stored information does not get into the
wrong hands. This is commonly known as using the "kill switch".
Apples "MobileMe" service allows Mac users to put information onto
their phone. But more importantly, it allows the user to perform a
remote wipe on a lost or stolen iPhone. The Palm Pre users, after
setting up a new account when activating the device, have the option
of backing up settings, receive updates, or remotely erase information
on the stolen phone. Features similar to the iPhone and Palm Pre, are
also found on Blackberry's, T-Mobile's Android, and phones that use
Windows Mobile.
http://www.pcmag.com/article2/