Saturday, May 19, 2012

Virtual Reality


Virtual Worlds

virtual reality
What is a Virtual World?
A virtual world is an interactive simulated environment accessed by multiple users through an online interface. Virtual worlds are also called "digital worlds," "simulated worlds" and "MMOG's." There are many different types of virtual worlds, however there are six features all of them have in common: 

1. Shared Space: the world allows many users to participate at once. 

2. Graphical User Interface: the world depicts space visually, ranging in style from 2D "cartoon" imagery to more immersive 3D environments. 

3. Immediacy: interaction takes place in real time. 

4. Interactivity: the world allows users to alter, develop, build, or submit customized content. 

5. Persistence: the world's existence continues regardless of whether individual users are logged in. 

6. Socialization/Community: the world allows and encourages the formation of in-world social groups like teams, guilds, clubs, cliques, housemates, neighborhoods, etc. 

Virtual worlds have been created for many different purposes. The largest and most common type of virtual world is the "MMORPG" which stands for "Massively Multiplayer Online Role Playing Game." But virtual worlds have also been built for purposes other than gaming. The following section summarizes a few ways in which virtual worlds are currently used: 

Commercial Gaming Commercial gaming worlds tend to focus on a singular fictional theme and consistently follow formal conventions such as character-focused avatars, progression through an interactive narrative storyline, and a series of competitive events. Strongly influenced by fantasy, science fiction, and anime genres of literature and film, the majority of sizable virtual worlds in existence today are commercial gaming worlds.

Socializing / Online Community Building

In addition to the traditional fantasy RPG worlds, there are many commercial community-focused virtual worlds that emphasize socializing rather than gaming. These worlds offer a more open-ended experience and are strongly influenced by the cultures of text-based chat rooms. Although small-scale, casual games may be incorporated into a social world, participants are not necessarily there to win or play a game, but rather to socialize with others and, in many cases, create and decorate a personal space such as a home, room, or apartment. Social worlds tend to use settings based on idealized versions of reality. Most provide some basic building tools and the ability to host activities and events that revolve around a wide variety of topics. 

Education

Some virtual worlds have been created for educational purposes. In most cases, educational worlds are sponsored by academic institutions or nonprofit organizations, although some educational worlds are sponsored by corporations. Educational worlds come in a wide variety of forms, including 3D recreations of museum and gallery spaces, computer programming tutorials, virtual libraries, and meeting spaces for online university courses. Active Worlds Educational Universe is one of the oldest and largest networks of educational worlds. Adobe Atmosphere is also being used to build virtual worlds for educational purposes. A great example of a corporate-sponsored educational world is Mokitown. 

Political Expression

Virtual worlds can serve as forums for political expression and debate. While real-world political issues can crop up in gaming, social, and educational worlds, there are a few cases in which completely separate virtual worlds have been built for the purpose of political debate or even experiments in various types of self-governing online communities. A great example of a virtual world with a political focus is AgoraXchange. 

Military Training

Virtual world technologies are also being used in some interesting ways by the U.S. military. America's Army is being used as a tool to recruit potential soldiers, while companies like Forterra Systems are working with military groups to develop training simulations.

The Future of Transportation


Hydrogen Fuel CellsFuture Cars

Future Cars

Fuel efficient, zero emission vehicles will use high tech electronics to assist drivers in a wide variety of ways. Vehicles will communicate with each other, with the road and with traffic signals.
Autos and trucks of the future will use vision enhancement devices to help you navigate through bad weather and warn you of a possible collision with a pedestrian or animal. They will also let you know if you are getting drowsy or straying from your lane.
Cars of the future will be radically different than the automobiles of today, and so will the driving experience.
In the near future, hydrogen fuel cells will change our lives. These fuel cells will power our vehicles, homes and offices more efficiently and will be less harmful to the environment than traditional energy sources. Fuel cells using pure hydrogen do not emit any air pollutants or greenhouse gases.

Driverless Transportation

Mass transit in the future will be low cost, personalized and environmentally friendly. Here are some online articles I found interesting on the future of driverless transit.

Flying Cars

FSC-1™ flying car

The FSC-1™ flying car can convert between car and airplane in 30 seconds.


Skycar™

The Moller Skycar™ uses a patented system that redirects thrust, enabling it to hover or to takeoff and land vertically from almost any surface

Maglev Trains

maglev train drawingMagnetic Levitation Transport, or maglev, is a form of transportation that moves vehicles via electro-magnetic force. Maglev trains can reach speeds

The Future of Transhumanism


transhuman girl

Wealthy, Healthy and Wise

Okay, let me see if I've got this right. I could stay young forever? Groovy. A complete backup of my brain? Copy that. What's this? An estimate? I knew it sounded too good to be true.
As with previous medical breakthroughs, it is possible that future human enhancements, like brain-machine interfaces and longevity drugs, at least initially, may only be affordable for the wealthy. The well-to-do, well could be, the next big thing.

Trickle Down Technology

Some future forecasters point out that many medical products and procedures have been expensive when they were first introduced. Prices can drop through competition, lower production costs and after patents run out.
Medical enhancements, however, may encounter unique barriers to lower prices.
Cosmetic surgeries and implants, for example, have been available for decades. Visit Beverly Hills and you'll see more lifts than a crane operator, but you'd be hard pressed to find a tightened temple in my neck of the woods.
What obstacles, wrinkles if you will, face society in providing available and affordable transhuman technology for everyone?
Wrinkle #1 - In the year 2050, 'transhuman technology for all', would mean advanced medical technology for an estimated 9 billion people.
Wrinkle #2 - Medical insurance policies will probably not cover human enhancements.
Wrinkle #3 - The fewer recipients, the higher the value to the consumer. What fun would Jeopardy be if everyone had an encyclopedia implant?
Wrinkle #4 - You just invented the Immortality pill. What price will you set?

Misfits and Retrofits

Even with reasonable closing costs, brain implant surgery may not be in the budget for many people living in the transhuman age. No prescription for immortality, for those that cannot afford the pill. In the era of 'half human/machine', the gap between the Halves and the Halve-Nots, will be as large as the profits.

Brain-Machine Interface

Brain machine interface
Brain machine interfaces (BMIs), allow for activity in the brain to be sent to, or received from, a computer.
Brain machine interfaces are currently assisting paralyzed patients communicate, control robotic arms, computers and other devices. In the future, BMIs could provide a path to brain enhancement and memory upload/download.

The Future of Space


Space Tourism

Space Tourism

Have you ever dreamed of going to space? In the past, if you wanted to leave this planet you had to dedicate your life to becoming an astronaut. Even then, there is only a select few that ever get to see Earth in the rear view mirror.
Space Tourism and suborbital travel links

Near Earth Objects

asteroid being tracked by satellite

What are the chances that a large asteroid will strike the Earth in the next 20 years? Near-Earth Objects (NEOs) are comets and asteroids that have been nudged into orbits that allow them to enter the Earth's neighborhood. Efforts are being mounted to discover and study these objects and to keep an eye upon their future trajectories.

Emerging Technologies May Fuel Revolutionary Launcher

NASA launcherAs NASA studies possibilities for the next launcher to the stars, a team of engineers from Kennedy Space Center and several other field centers are looking for a system that turns a host of existing cutting-edge technologies into the next giant leap spaceward.
image: Magnetic levitation (MagLev) system evaluated at NASA's Marshall Space Flight Center (NASA)
An early proposal has emerged that calls for a wedge-shaped aircraft with scramjets to be launched horizontally on an electrified track or gas-powered sled. The aircraft would fly up to Mach 10, using the scramjets and wings to lift it to the upper reaches of the atmosphere where a small payload canister or capsule similar to a rocket's second stage would fire off the back of the aircraft and into orbit. The aircraft would come back and land on a runway by the launch site.

Lassos in Space

Space Tethers
Roping cattle takes skill and finesse, but imagine trying to lasso a satellite in space. Now, imagine flinging the satellite up to a higher orbit to actually launch it!
That’s what a small business in Bothell, Wash., is planning to do. The researchers and engineers at Tethers Unlimited Inc. are not cowboys, but they are developing unique lassos. Their “lassos” are new systems that will be used to capture and launch spacecraft.
The tether is a long string or wire deployed in space from a spacecraft. These tethers can be used in different ways to move satellites or spacecraft in space.
The “lasso” concept is similar to a giant sling that would rotate as it orbits the Earth. The craft, ballast and tether increase orbital momentum and energy for boosting the payload to a higher orbit.
“It could swing down, pick up a spacecraft in low orbit and carry it up and toss it into a higher orbit,” said Rob Hoyt, Tethers Unlimited president.

Is the Space Station Flying Over Your City?

satellite over earth

Check out a list of quick and easy satellite  and space shuttle sightings in cities all over the world.
You enter your location and you find out when and where the International Space Station and other orbiting satellites can be seen from your view.

Moonbase Alpha

Moon base
In this free simulation game from NASA, you assume the exciting role of an astronaut working to further human expansion and research. Returning from a research expedition, you witness a meteorite impact that cripples the life support capability of the settlement. With precious minutes ticking away, you and your team must repair and replace equipment in order to restore the oxygen production to the settlement.

The Future of Robotics


Life Like Robots

human looking woman robot Robotic engineers are designing the next generation of robots to look, feel and act more human, to make it  easier for us to warm up to a cold machine.
Realistic looking hair and skin with embedded sensors will allow robots to react naturally in their environment. For example, a robot that senses your touch on the shoulder and turns to greet you.
Subtle actions by robots that typically go unnoticed between people, help bring them to life and can also relay  non verbal communication.
Artificial eyes that move and blink. Slight chest movements that simulate breathing. Man made muscles to change facial expressions. These are all must have attributes for the socially acceptable robots of the future.
lifelike robot woman
The brain behind the beauty will be the key to turning a realistic looking machine into a life like robot. AI plays a pivotal role in successful human/robot interaction.
Links

Robotic Pets

Robotic Pets


Pets of the future might be robots with artificial intelligence.

Rescue Robots

Imagine yourself lost deep in the forest on a cold autumn night and nightfall is rapidly approaching. Too windy for search aircraft and too dark for ground teams, this could be a life threatening situation. Fortunately for you, it is ten years into the future and hundreds of tiny intelligent robots will be combing the woods for you throughout the night.
All terrain robots (ATRs), will truly function as a team by sharing their locations, discoveries, search patterns and more. Large ATRs could carry many smaller robots and provide them with localized control and power.
These smaller more specialized robots will have cameras, sonar, heat sensors, motion detectors and can be sent out by the large ATRs as needed. Smaller robots might work together to perform tasks such as moving a large obstacle.
Related Articles

 Robotic Competitions

baby playing with robot
The ultimate goal of the RoboCup project is to develop a team of fully autonomous humanoid robots that can win against the human world champion team in soccer by the year 2050.
The FIRST Robotics Competition challenges teams of young people and their mentors to solve a common problem in a six-week timeframe using a standard "kit of parts" and a common set of rules. Teams build robots from the parts and enter them in competitions.

Robotic Insects

robot bug
Insects have come up with many interesting solutions for the problems that future robots will have to deal with like cooperation,  specialized movement and adapting to changing environments. Robotic engineers are incorporating examples found in nature into their designs.

Exoskeletons

Wearable bionic suits are being developed primarily for the military to allow soldiers to carry heavier loads and to conserve energy. Better uses for exoskeletons are assisting rescue workers move heavy objects and bionics for motor-impaired patients.

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Thursday, May 17, 2012

The Future of Physics


The Large Hadron Collider

Large Hadron Collider
The Large Hadron Collider (LHC) is the world's largest and highest-energy particle accelerator complex, intended to collide opposing beams of protons or lead, two of several types of hadrons, at up to 99.99 percent the speed of light.

The LHC was built by the European Organization for Nuclear Research (CERN), and lies underneath the Franco-Swiss border between the Jura Mountains and the Alps near Geneva, Switzerland. It is funded by and built in collaboration with over 10,000 scientists and engineers from over 100 countries as well as hundreds of universities and laboratories with the intention of testing various predictions of high-energy physics, including the existence of the hypothesized Higgs boson.


Are The Experiments Planned at the LHC Safe?

Could experiments at the Large Hadron Collider produce a man-made black hole? Is the LHC a doomsday device?
What types of phenomena could result from the world's most powerful experiments?
Strangelets
Microscopic black holes
Vacuum bubbles
Magnetic monopoles
Bose supernovas
Although I tried to understand strangelets, vacuum bubbles and the other objects that physicists speculate could result from LHC experiments, it is darn near impossible to find extra research time during the NASCAR season.
With my limited knowledge of physics, I have no choice but to put my trust in the majority of scientists that have stated there is no risk of LHC experiments creating man-made black holes or strangelets that will devour the Earth.
The problem is that there may not be a scientist anywhere that knows with certainty what to expect from these unprecedented experiments. As far as I can tell, physicists around the world do not agree on a single "theory of everything", and our current laws of physics do not exactly fit the quantum world. Scientists are anxiously awaiting the LHC experiments to help them find those answers.
I read in one of the articles linked below, that "we need the LHC experiments because there has not been a significant breakthrough in physics in over 30 years". My question is, what's the rush? Why can't we wait for the next Newton or Einstein to come along to develop theories that could more accurately predict the outcome of these experiments?
I would feel much more at ease if physicists could say, "So and so is what we expect to happen and these tests will prove it."
Instead of, "If string theory is correct, we should see... If not, maybe we'll find..."
or
"Strangelet production is therefore less likely..."
If and less likely should never be in the same article as doomsday.
Unfortunately, the people at the LHC do not seem overly concerned about my fears. If they were, they could have started out by calling the project something a little less ominous like--The Big Hadron Get Together. They also could have hired a spin doctor, like the politicians do, to soften the blow when mishaps occur. The headline 'Magnet Meltdown at the LHC', could have read 'Proton Party Gathers Steam'. I wouldn't be any safer, but I would sleep better.
What I find most unsettling, is that technologies like the Large Hadron Collider, nanotechnology and biotechnology, are moving forward at near-light speed, whether I feel they are dangerous to humanity or not--and for the record, I do.

The Future of Nanotechnology


What is Nanotechnology?

Array of vertically aligned carbon nanotubes
Nanotechnology is a broad term that covers many areas of science, research and technology. In its most basic form, it can be described as working with things that are small. Things so tiny that they can't be seen with standard microscopes. The same stuff that has always been there, but we just couldn't see it. The building blocks of nature, atoms and molecules. Nano-technology involves understanding matter at the "nano" scale.

diagram showing size differerence starting at DNA

Size Matters

This illustration from nano.govgives visual examples of the size and the scale of nanotechnology, showing us just how small nanotechnology actually is.
A nanometer is one-billionth of a meter. In comparison, a human hair is about 100,000 nanometers in diameter.
All dimensions are approximate. Nanoparticle is courtesy of the National Center for Electron Microscopy, Lawrence Berkeley Lab, US Department of Energy.
Another illustration of size comparison can be found here:
"The scale of things"
3d computer buckball

Buckyballs and Nanotubes

A fullerene is any molecule composed entirely of carbon, in the form of a hollow sphere, ellipsoid, or tube. Spherical fullerenes are also called buckyballs, and cylindrical ones are called carbon nanotubes or buckytubes.
Because of their unique properties, nanotubes and buckyballs open a path to many futuristic applications. Because of their size, they pose a risk to human health.

Image of Rotating crystal structure of C60 (Buckminister Fullerene). courtesy of Wikimedia Commons

How is nanotechnology being used today?

Nanotechnology is being used to make surfaces self-cleaning and stay clean for a long time. Nanotech can be found in cosmetics, sunscreens, clothing and many other consumer products today.

Types of Nanomaterials

  • Carbon Nanotubes 
    Fullerenes and Buckyballs 
    Dendrimers 
    Fine and Ultrafine Particulates in Air
    Quantum Dots and Nanocrystals 
    Titanium Dioxide nanoparticles 
    Silver nanoparticles
    Silver nanowire 
    Other nano-sized particles

Nanotechnology risksReady or not, here it comes. In the next 20 years, nano-technology will touch the life of nearly every person on the planet. The potential benefits are mind boggling and brain enhancing. But like many of the great advancements in earth's history, it is not without risk. Here are some of the risks posed to society by nanotechnology.

Nanobots

Nanobots do not exist yet, but when they do, futurists predict possible uses for nanorobots will include molecular manufacturing (nanofactories) and medical nanobots that steer autonomously through your blood stream making repairs and guarding against infection.
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