Top 10 Future Food Sources

Future Food Sources

Credit: Joanne Q Escober via Flickr

 

Pills

For those of you who are not big on flavor, there is always food in pill form.  While a common detail in movies and books about the future, the ‘meal in a pill’ is actually already here, though probably not as you imagined it.

Researchers in the UK have developed a pill that provides the health benefits of eating a Mediterranean diet. According to the developers, each pill has the vitamins and minerals that you would get from eating six and a half pounds of tomatoes.

Memory-Erasing Drugs

Memory-Erasing Drugs Worries Are Overblown, Some Ethicists Say

Are ethicists' fears of memory manipulation drugs overblown? One researcher believes so and states his case praising memory altering research in this week's Nature commentary. CREDIT: Kreefax | Dreamstime View full size image

Memory-erasing drugs could do more than erase a bad memory; they could help treat mental ailments such as post-traumatic stress disorder (PTSD), and one neuroethicist argues that these drugs should be developed and used, regardless of ethical concerns.

Though a magic bullet, erase-any-or-all-memory drug has yet to hit the market and is still decades away, scientists have made great strides in that direction, with one human trial under way for a drug called propranolol that can dampen post-traumatic-stress related negative memories. Other newly discovered brain pathways can be manipulated to ratchet memory up and down.

X-Ray Microscope Enables Nanovision

X-Ray Microscope Enables Nanovision

Magnetic domains appear like the repeating swirls of fingerprint ridges. As the spaces between the domains get smaller, computer engineers can store more data. CREDIT: UC San Diego View full size image

Forget X-ray glasses. A new X-ray microscope can see details a small as a billionth of a meter — without even using a lens.

Instead, the new microscope uses a powerful computer program to convert patterns from X-rays bouncing off materials into images of objects as small as a one nanometer across, on the scale of a few atoms.

Unlike Superman's X-ray vision, which allows him to look through walls to see the bad guys beyond, the new technology could be used to look at different elements inside a material, or to image viruses, cells and tissue in great detail, said study researcher Oleg Shpyrko, a physicist at the University of California, San Diego. But one of the most important applications is in nano-sized engineering, Shpyrko said.

Radiation Exposure

Human Body Might Adapt to Radiation Exposure

Doctors who are regularly exposed to X-ray radiation may undergo changes in their cells that protect them from the radiation they encounter, a new study suggests.

These physicians have higher levels of a particular antioxidant called glutathione inside their red blood cells than physicians who don't use X-rays regularly, the study showed. In addition, some of these cells may be better able to self-destruct, which would be protective if they turned cancerous.

However, it's still not clear whether these changes will be beneficial in the long run, or reduce the physicians' cancer risk, said study researcher Dr. Gian Luigi Russo, a senior research scientist at the National Research Council (CNR) in Pisa, Italy. Instead, these alterations might be early indicators of a disease, Russo said.

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Silent Sound Technology- The Future of Communication

Silent Sound Technology

 

Have you ever found yourself in a situation where, no matter how much you blare on the phone, the receiver at the other end can never hear you. It may be a busy street, a crowded bus or even a late night party at the pub, the biggest issue while talking over the phone is one just can’t be loud enough. So does that mean you stop receiving any calls in a crowded place? (Image taken from http://wn.com)

Earth's Surface 'Recycled' Surprisingly Quickly

Earth's Surface 'Recycled'

The volcanic islands of Hawaii are thought to be fueled by a plume of hot rock that moves upward from the lower portions of the Earth's mantle. CREDIT: NASA

The ground we stand on seems permanent and unchanging, but the rocks that make up Earth's crust are actually subject to a cycle of birth and death that changes our planet's surface over eons. Now scientists have found evidence that this cycle is quicker than thought: 500 million years instead of 2 billion.

The tectonic plates that make up Earth's crust are constantly jostling against each other: brushing past one another in some places, moving apart in other areas, and butting head-on in still other places.

Why is Quartz Used in Watches?

Why is Quartz Used in Watches?

 

Quartz, made up of silica and oxygen, is one of the most common minerals on Earth. Billions of people use quartz every day, but few realize it because the tiny crystals they use are hidden in their watches and clocks. But what do the clear or whitish crystal rocks found all over the world have to do with timekeeping?

How Are Fake Diamonds Made?

Fake Diamonds

Diamond particles are embedded in the teeth of this saw. Credit: Dreamstime

Diamonds are one of the world's most valuable commodities, the planet's hardest substance and perhaps the most symbolic expression of love and commitment found in nature. Except when they aren't.

While real diamonds form deep within the earth during geological processes spanning billions of years, so-called fake, or manmade, diamonds can be whipped up in a laboratory in no time at all, yet they look and act remarkably similar.

Why Do Batteries Go Bad?

Why Do Batteries Go Bad?

Credit: Morrhigan | sxc.hu

There's a reason behind that expiration date on a fresh package of batteries. Because batteries generate energy using a chemical reaction contained inside the battery cell, they use up energy, even if they haven't yet been snapped inside a remote control or toy.

Most batteries have a long shelf life that varies depending on their type and size, but they weaken over time due to the way they're constructed. Each battery contains electrodes, which are strips of metal tape coated with an oxide (a combination of oxygen and another chemical element) and rolled up like a jelly roll. Certain parts of batteries corrode over time, leaving them less effective or completely unusable.

How Does a Virus Infect Your Computer?

Virus Infect Your Computer

Though they're not a living thing like you and me, computers can get "sick" from viruses, too.

A computer virus is a software program designed to replicate itself and spread to other machines. In most cases, the program is "malicious," meaning its purpose is to cause the computer malfunction in some way.

In general usage, the term "computer virus" includes all forms of "malware," or malicious software.

Instead of sniffles and a fever, some common symptoms of a computer viral infection are slow performance, data loss and system crashes, all of which can make people using the machine feel ill as well.

Why Do Computers Crash?

Why Do Computers Crash?

 

It turns out that humans are to blame for computer crashes. These involuntary shutdowns typically result from glitches in software – code written by human programmers.

“This code can contain many, many bugs, and these bugs can manifest themselves every now and then to cause program crashes,” said Junfeng Yang, professor of computer science at Columbia University.

Software such as Microsoft Word contains code that gives the computer a set of instructions to, say, store data in a certain place. But if one of the memory cells is corrupt (for example, contains a scratch), and the computer doesn’t know what to do, it freezes up or crashes.

How Do Calculators Calculate?

How Do Calculators Calculate?

Electric currents, transistors and logic gates work together to put two and two together inside a calculator. Credit: sxc.hu

When you and I calculate two plus two, we imagine a number line, start at two and hop over a couple of spots to get to four (or at least we did until we memorized the answer). Simple — so simple, in fact, that "putting two and two together" is an analogy for deducing something obvious.

But what if you can't imagine a number line? What if you're a little, gray, button-covered box full of electrons? How, then, do you calculate that two plus two equals four?

The process itself is not so simple, but once you understand how this basic arithmetic operation works in a calculator, you can "put two and two together" as to how it performs much more complicated calculations.

How Are Voicemails Hacked?

How Are Voicemails Hacked?

 

Voicemail hacking is surprisingly easy — for low-brow tabloids desperate for stories, temptingly so.

Most mobile networks assign a default PIN (personal identification number) to customers that allows them to access their voicemail messages from anywhere. A cellphone user can simply dial his or her own phone number from another phone, let it go to voicemail, enter the PIN and listen away. Most users don't change their PIN from the default, and so hackers often need only dial in to a hacking victim's voicemail inbox remotely and try the handful of default PINs assigned by the major networks. Some networks use a generic number, such as 0000. Others use the last four digits of the corresponding phone number.

Enceladus rains water onto Saturn

Rains water onto Saturn

ESA's Herschel space observatory has shown that water expelled from the moon Enceladus forms a giant torus of water vapour around Saturn. The discovery solves a 14-year mystery by identifying the source of the water in Saturn's upper atmosphere. Herschel's latest results mean that Enceladus is the only moon in the Solar System known to influence the chemical composition of its parent planet.

A new way to measure the expansion of the universe

Measure the expansion of the universe

A PhD student from The International Centre for Radio Astronomy Research (ICRAR) in Perth has produced one of the most accurate measurements ever made of how fast the Universe is expanding. Florian Beutler, a PhD candidate with ICRAR at the University of Western Australia, has calculated how fast the Universe is growing by measuring the Hubble constant.

"The Hubble constant is a key number in astronomy because it's used to calculate the size and age of the Universe," said Mr Beutler.+

NASA researchers: DNA building blocks can be made in space

DNA building blocks can be made in space

 



 

NASA-funded researchers have evidence that some building blocks of DNA, the molecule that carries the genetic instructions for life, found in meteorites were likely created in space. The research gives support to the theory that a "kit" of ready-made parts created in space and delivered to Earth by meteorite and comet impacts assisted the origin of life.

10 guidelines to make your Laptop work efficiently

Guidelines to make your Laptop work efficiently

 

People can use their laptop for their work as well as entertainment. So, it is essential to maintain and cleanup your laptop periodically for it to work like a new one. Here we present some tips and guidelines to make your laptop work efficiently.

Here are some guidelines for it.

1. Defragment periodically – once every week. The files are split up and stored in several locations on a computer memory. When you defragment, the pieces of files are grouped to a particular place, making it easy to access.

Top 5 malicious internet Places which can hack your PC

Malicious Internet Places

Lot of people depend on the Internet for all their basic or complex needs which includes studies, entertainment, businesses, researches, shopping, etc. The benefits that you get are actually shadowed by the malicious attacks that arise from the Internet. Even if you secure your system with Antivirus programs, it is not enough to safeguard your system from virus affected malicious sites. Listed below are threats and some of the ways your system might get affected, so make a note of it.

Threat No. 1:  Malicious Flash Content Files

Origin: Sites having Flash Contents