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Archive for September, 2009

Planning a trip to Mars? Take plenty of shielding to protect from cosmic rays

September 30th, 2009

Planning a trip to Mars? Take plenty of shielding. According to sensors on NASA’s ACE (Advanced Composition Explorer) spacecraft, galactic cosmic rays have just hit a Space Age high.

Cosmic Rays

“In 2009, cosmic ray intensities have increased 19% beyond anything we’ve seen in the past 50 years,” says Richard Mewaldt of Caltech. “The increase is significant, and it could mean we need to re-think how much radiation shielding astronauts take with them on deep-space missions.”

Galactic cosmic rays are speeding charged particles that include protons and heavier atomic nuclei. They come from outside the solar system, though their exact sources are still being debated.

Earth dwellers are protected from cosmic rays by the planet’s magnetic field and atmosphere. But outside Earth’s protective influence, cosmic rays can play havoc with spacecraft electronics – they may be responsible for some recent computer glitches on NASA’s Kepler spacecraft, which temporarily halted its planet-hunting observations. They can also damage astronaut DNA, which can lead to cancer.
“At times of low solar activity, this natural shielding is weakened, and more cosmic rays are able to reach the inner solar system,” explains Pesnell.

Cosmic Rays

Cosmic Rays

Mewaldt lists three aspects of the current solar minimum that are combining to create the perfect storm:

1. The sun’s magnetic field is weak. “There has been a sharp decline in the sun’s interplanetary magnetic field down to 4 nT (nanoTesla) from typical values of 6 to 8 nT,” he says. “This record-low interplanetary magnetic field undoubtedly contributes to the record-high cosmic ray fluxes.” [data]

2. The solar wind is flagging. “Measurements by the Ulysses spacecraft show that solar wind pressure is at a 50-year low,” he continues, “so the magnetic bubble that protects the solar system is not being inflated as much as usual.” A smaller bubble gives cosmic rays a shorter-shot into the solar system. Once a cosmic ray enters the solar system, it must “swim upstream” against the solar wind. Solar wind speeds have dropped to very low levels in 2008 and 2009, making it easier than usual for a cosmic ray to proceed. [data]

3. The current sheet is flattening. Imagine the sun wearing a ballerina’s skirt as wide as the entire solar system with an electrical current flowing along its wavy folds. It’s real, and it’s called the “heliospheric current sheet,” a vast transition zone where the polarity of the sun’s magnetic field changes from plus to minus. The current sheet is important because cosmic rays are guided by its folds. Lately, the current sheet has been flattening itself out, allowing cosmic rays more direct access to the inner solar system.

Complete Article @ NASA

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Fernando alonso is the new pilot for Ferrari

September 30th, 2009
Fernando Alonso goes to Ferrari

Fernando Alonso goes to Ferrari

Spain’s double Formula One world champion Fernando Alonso will leave Renault at the end of the season and join Ferrari on a three-year deal, the Italian team announced on Wednesday.

The threat of a breakaway series, the recent race-fixing scandal and the future of a number of manufacturers, including BMW, Toyota and Renault, all slowed things down considerably this year, but nothing held up events quite as much as the uncertainty over the future of Alonso.

That now appears to be resolved. The two-time world champion, who is under contract with Renault until 2010 but has the option of leaving at the end of this year, will reportedly sign a five-year contract with Ferrari worth £23  million a season, with the option to extend for a further year.

Fernando Alonso said:

I feel happy for being a Ferrari Pilot. To drive the car of the “Cavallino Rampante” is a dream for any F1 pilot, and today I am lucky for achieve it. I want to greet Luca de Montezmolo, Ferrari’s president to strive to reach this agreement. During past summer we signed a contract to begin our relation on 2011, but last days the situation changed and we decided to bring forward my arrival to Maranello.

All those years on Renault had been fantastic, all together we have won four world championships and 17 of the 21 GP that I have until now have been with Renault. I hope all the Renault team good luck and I also want to win all te possible points from now to the end of the season. Once the GP of Abu Dabi is over, all my strength will be focused on next year. I am sure that together with Felipe we will give Ferrari and all his supporters around the world great joy.

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Holiday Stress Graph

September 29th, 2009
Holiday Stress

Holiday Stress

Here you are a holiday stress graph, found thru WTFLABS but originally from PHDCOMICS

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How social media can improve your travel skills

September 28th, 2009
Smarter travel

Smarter Travel

This post was intended to speak about navigation on your own city, but when we are travelling all those apps are quite more important than for your home-job-beer-home trip.

There’s no question that social media has brought us a lot closer by allowing anyone to communicate in virtual settings with people all over the world. But social media tools are also helping us to hack the way we interact with the real world. From figuring out the best route to get from point A to point B to helping people avoid speeding tickets, from simplifying public transportation to arranging carpools, social media tools are making it easier for people to get around the places they live.

We’ve collected a list of ten great social media tools to help you better navigate your city and connect with your neighbors. If you know of any others, please mention them in the comments.

1. Google Maps

Google Maps is the crème de la crème of online mapping applications, with satellite and terrain maps, embedded Wikipedia information, local business info, and turn-by-turn directions for car, walking, and public transit. Google doesn’t set the gold standard for mapping by being the prettiest mapping application (Microsoft’s mapping app is arguably easier on the eyes), but rather because of the pace at which the company innovates.

Their “Street View” technology, for example, offers impressive and highly useful 360 degree panoramic street-level photographs for an unmatched and growing number of cities around the world. And their live and predictive traffic maps can show users traffic congestion now or in the future (based on historical data) for at least 30 different cities. These types of innovative features are why Google Maps is one of the best tools any city navigator can have in his or her arsenal.

2. Waze

Like Google’s traffic maps, Waze collects real-time information from users using their mobile phone applications. If you’re stuck in traffic, the Waze app will send data about where you are and how fast you’re going to others in your area so they can reroute to a road with less traffic congestion. Where Waze one-ups Google is in the ability for people to report on the causes of traffic (such as an accident, downed tree, or construction) or to report speed traps.

If you’re just interested in avoiding speed traps, check out Trapster, a crowdsourced speed trap sharing system that alerts you to speed traps and red light cameras.

3. Wayfaring

Wayfaring is a great Google Maps mashup that helps users to easily create their own information maps. Whether mapping the route of your morning jog, keeping track of where you went on your road trip, or mapping out the best places for pizza in Chicago, Wayfaring lets users share their experiences with one another. It’s a great way to connect with other local travelers or find cool places or routes when in a new city.

4. Walk Score

Because not all transportation is done on wheels, Walk Score will tell you the most walkable places to live. What makes an area walkable? Public spaces, nearby amenities, a pedestrian centric design (with parking lots behind businesses and storefronts close to the sidewalk), slow traffic, count-down crosswalk timers, and accessibility features (like wheelchair ramps), among other things.

Enter your address into Walk Score to see how walkable your neighborhood is, and get details on nearby restaurants, grocery stores, libraries, public parks, schools, and other amenities. Any score above 80 means you live in an area where a car isn’t necessary to get by.

5. MapMyRide

For those of you who get around on two wheels, MapMyRide is for you. The site lets you plot your bike riding routes using Google Maps, and view other routes that fellow bikers have entered. You can view routes on a regular map, or add in elevation data to see how much uphill and downhill riding you’ll have to contend with. Where available, you can also preview what that route will look like at bike level by using Google’s Street View.

MapMyRide also offers a calculator to estimate how many calories your bike ride will burn, and premium memberships with workout tracking and printable maps. Also check out Bikely, a similar site where riders share their biking routes.

6. HopStop

Of course, sometimes the weather makes riding your bike or walking a less than desirable prospect — public transportation to the rescue! HopStop makes riding the subway or the bus in New York, New Jersey, Long Island, Boston Chicago, San Francisco, Washington DC, Philadelphia, London, and Paris a breeze. Unless you’re very familiar with a public transportation system, getting around in a new city can be tough. HopStop takes out the guesswork by telling you which trains and buses to take and how to get from station to station.
I use it to map out subway routes whenever I am traveling in a city where I don’t know the system very well. Also check out Google Transit, which gives transportation directions for more than 425 cities around the world.

7. Zimride

If you do plan to take a car, why not share a ride with someone else? Carpooling is better for the environment, it saves money, and it can save time if it makes you eligible for a high speed HOV lane during your commute. Zimride connects carpoolers together for one-time rides, regular commutes, and cab shares in the US and Canada. Because of Zimride’s clever integration with Facebook Connect, you can query your Facebook friends or your work or school network for rides to help ensure that you’re not getting into the car with an axe murderer (and increase the likelihood of finding someone in your area heading in the same direction as you). Also check out Avego.

8. RideCharge

If you neither own a car nor want to get into one with a complete stranger, then RideCharge might be for you. RideCharge lets you book taxis in 27 metro areas via your mobile device so that you never need to be caught out in the rain trying to hail a cab. The site is especially helpful for corporate travelers or those who need to be in a specific place at a specific time. If you pre-book your taxi, sedan, or shuttle, you can be sure you’ll get to your appointment on time.

9. GasBuddy

For those who need to travel by car, GasBuddy is a must-visit site. Relying on crowd submitted information, GasBuddy delivers up-to-date gas prices for cities across the US and Canada, so that you can always find the lowest gas prices in your area. Once you locate the cheapest gas station, use GasEdge to calculate if the extra driving for an out-of-the-way bargain will actually be worth it, or if going to your regular, but more expensive, station will actually save you money in the end.

10. FuelFrog

FuelFrog lets you log mileage between fill ups, how much gas cost, and how many gallons or liters you added to your tank simply by tweeting your daily fuel data. The site then creates handy graphs that can be helpful in charting your fuel usage, identifying trends in your local gas prices, and learning how your car uses fuel (which could help alert you to issues like the need for a tune-up or that your tires are low on air). The information could also help you adjust your transportation habits so that you burn less fuel and save money.

Also check out MyMileMarker, which lets you enter fuel data via its web site, right from the pump through a special mobile site, or on Twitter.

VIA: Smarter Planet

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Gadgets, Tech, Travel , , ,

Five of the Strangest Places to Visit

September 3rd, 2009

Most travelers are looking for new experiences, but what about the TRULY unusual? For the adventurous travelers there are so many amazing places around the world that you can choose to see, some are man-made and others were formed by nature. The 5 places below are all natural and are (most definitely) some of the strangest places and/or biggest mysteries in the world. For hundreds of years scientists of all kinds have tried to uncover the mysteries of many of these places to no avail, and travelers seeking adventure have visited them to stare in amazement and take pictures of these odd places. Enjoy learning a little bit about some of the most out of this world places on Earth, and maybe you will even be inspired to visit one of them yourself someday.

The Devil’s Bath

This ominous looking pool is located in the thermal reserve of Wai-O-Tapu which is in The Bay of Plenty located in New Zealand. The Devil’s Bath is a pea shade of green and it is caused from many different mineral elements in the water. Devil’s Bath was created from heavy volcanic activity in the region and it is thought to date back approximately 160,000 years. Heated streams run underneath the landscape throughout the area and there are many other amazing sites to see along the way.

Vale da Lua (Moon Valley), Brazil

The Vale da Lua, or Moon Valley is a place that will literally make you feel like you are on another planet, while walking around you may literally feel like an alien is gonna appear. These rock formations were caused by water erosion over many years and along with the terrestrial landscape there are also natural pools throughout. The rock formations seen are mostly quartz and crystaland they are among some of the oldest on Earth.

The Great Blue Hole, Belize

The Blue Hole in the ocean is just off the coast of Belize and this is one that is a great destination for brave scuba divers, and even on your way to Belize for vacation you may see the great Blue Hole as you fly over. I mentioned scuba above and this is one of the top destinations in the world for experienced scuba divers because of how deep the Great Blue Hole is and because it s full of many different caverns and hideaways. Scuba divers also get a close up view of the tropical fish and schools of sharks that inhabit the hole.

See the rest at BEACH HOUSE

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