Showing posts with label TechNews. Show all posts
Showing posts with label TechNews. Show all posts

Monday, 12 December 2011

Is Vesta Actually a Planet Posing as an Asteroid?



Vesta's Surface Science@NASA
The asteroid Vesta was first discovered two centuries ago, but until NASA’s Dawn spacecraft arrived there earlier this year and began beaming back images and data, Vesta was seen as just another blurry, rocky satellite out there orbiting in the asteroid belt. Now, with Dawn’s instruments giving researchers their first really good look at Vesta’s composition and surface features, some astronomers are wondering if perhaps they haven’t discovered a small terrestrial planet rather than an asteroid.
The distinction between “dwarf planet” and “asteroid” is a bit nebulous and ultimately up to the International Astronomical Union. But in a post here last week we noted that the composition of Vesta is actually very similar to Earth’s--with separated layers like a core, mantle, and crust--suggesting that at one point in Vesta’s past it had a hot molten core that caused heavier materials (like iron) to sink inward while lighter materials flowed to the top.
This process is called differentiation, and it occurred on all of the terrestrial planets (Mercury, Venus, Earth, and Mars) in our solar system. Topographic characteristics like huge mountains and valleys, ridges, craters, and plains are lending further credence to this analysis. All told, Dawn researchers believe Vesta formed more like a terrestrial planet than the average asteroid.
That formation would’ve happened about 4.5 billion years ago at the same time the rest of the planets were forming. As Jupiter gathered mass, the gravity it exerted on the asteroid belt interfered with the coalescing of material there. Vesta was probably on its way to becoming a terrestrial planet before its growth was stunted. Still, it differentiated in its early life just like a planet, and the Dawn team is now looking for volcanoes and lava flows that it thinks were once present on Vesta’s surface (not to belabor the point, but the presence of volcanoes would be super Earth-like).
All that points to the possibility that Vesta could be reclassified as a dwarf planet, joining the likes of Pluto and Ceres--another asteroid belt dweller already classified as a dwarf planet and the a research target for Dawn starting in 2015.

Saturday, 26 November 2011

Nokia NFC Smartphones - Just Tap to Share and Play




 In the recent years new standards referring to RFID technology are imposed and among them surely the NFC (Near Field Communication) is important. It is the technology with the radio frequency which allows communication between two devices that are near. They allow the exchange of information or performance of security payment.  The designers claim that NFC will simplify to its extreme the way of interaction between the consumers device and guarantee a fast and secure information exchange.
Possible applications are many folded:
  • Paying by mobile devices like cell phones
  • Credit card integration into a mobile device
  • Electronic money integrating with prepaid cards
  • Electronic ticketing for transport usage
  • Personal electronic document

Thursday, 24 November 2011

Facebook scam threatens to delete your account


A new Facebook phishing scheme is about as nasty as they come: The perpetrators threaten to delete users' Facebook accounts unless they hand over various account details within 24 hours. While some of you might welcome such a deletion, most of us would not. Sophos Security is warning about the scheme, which was shared on Hoax-Slayer.
Facebook users may get emails that purport to be from Facebook, saying that the user is violating the social network's policy regulations by annoying or insulting other Facebook users. And, the email says, unless certain personal and financial information (including credit card numbers) is submitted within 24 hours, the user's account will be done away with.

Tuesday, 22 November 2011

Samsung lights up new line of LED bulbs


Samsung lights up new line of LED bulbs

Will you be buying a handful of LED bulbs with your next TV?
Samsung today announced the availability and pricing of a line of seven consumer LED bulbs, some of which have the conventional screw-in bottom. There are spotlights for recessed lighting cans or track lighting, but there is also a bulb-shaped A19 bulb, a "snowcone" style bulb that gives off light in one direction.

Apple iCloud Features


Apple iCloud Features

iCloud is the most recent unveiled service by Apple, i am sure that yoi have huge list of features in mind for its new service. As far as i know there is a huge list of feature but here i will list only some unique and important features of apple icloud service. 



What is iCloud? 

Its a wireless data sync services which is based on cloud servers concept but very much different from it. “Generally cloud is word for disk space in air but it will stands for more in icloud” According to Mr Steve from Apple.

Monday, 21 November 2011

Electronic Pills - Collecting Data Inside The Body

Electronic Pills - Collecting Data Inside The Body

new-electronic-inventionsAfter years of investment and development, wireless devices contained in swallowable capsules are now reaching the market.
Companies such as Smart-pill based in Buffalo, New York and Israel-based Given Imaging (PillCam) market capsules the size of vitamin tablets that contain sensors or tiny cameras that collect information as they travel through the gastrointestinal tract before being excreted from the body a day or two later.
These new electronic inventions transmit information such as acidity, pressure and temperature levels or images of the esophagus and intestine to your doctor's computer for analysis.

Sunday, 20 November 2011

Sony Revealed two iPad challengers 'S1′ and 'S2'


Sony is planning for a tablet computer with touch screen similar to Apple's iPad.
which is coming with the two codenamed S1 and S2, as shown in Tokyo, it comes with 9.44 inch display for enjoying movie, video games, electronic books and online contents including social networking and email.

Releasing date and price is not confirmed yet. however its seems like the tablets will not come for worldwide sale until September, as
Senior vice president Kunimasa Suzuki said.

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