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Is Charging Your Gadget Overnight Waste Of Energy?
Many times we leave our gadgets Mobile phones, PDAs, MP3 players, Cameras, Laptops etc with charger plugged in overnight. Lets check if this is a major waste of energy..
What happens if you leave the mobile phone plugged in all night?
According to measurements from Lawrence Berkeley National Laboratory, the average cell phone draws 3.68 watts of power from the outlet while it’s charging and 2.24 watts when charged. Let’s take the worst-case scenario and assume that you’re over-juicing a charged battery for the entire night. Leave the average phone plugged in for eight unnecessary hours, and it’ll use about 0.018 kilowatt-hours of electricity. Do that every night for a week, and the figure rises to 0.13 kWh; every night for a year, and you’re looking at a grand total of 6.5 kWh of electric
Nokia Unveils Its First Linux Phone N900
Nokia unveiled N900, its first smart phone running on Linux software, aiming at improving its offering at the top end of the market.
The Nokia N900 runs on the Linux-based Maeme 5 software, featuring true multitasking with applications as well as Web browsing with Adobe Flash support.
Nokia’s workhorse Symbian operating system controls half of the smartphone market volume — more than its rivals Apple, Research in Motion and Google put together. Nokia said Linux would work well in parallel with Symbian in its high-end product range.
Galileo Telescope Reaches 400th Anniversary
The telescope was the first instrument to extend human senses, revolutionising our view of the heavens and our place in the world.
Exactly 400 years ago on 25 August 1609, the Italian astronomer, mathematician, physicist and philosopher Galilei Galileo showed Venetian merchants a new creation, a telescope, the instrument that was to bring him both scientific immortality and, more immediately, a whole lot of trouble.
IBM To Build Next Generation Chips Using DNA
Scientists at IBM Research and the California Institute of Technology announced a scientific advancement that could be a major breakthrough in enabling the semiconductor industry to pack more power and speed into tiny computer chips, while making them more energy efficient and less expensive to manufacture.
IBM scientists are using DNA scaffolding to build tiny circuit boards; this image shows high concentrations of triangular DNA origami binding to wide lines on a lithographically patterned surface; the inset shows individual origami structures at high resolution.
Today, the semiconductor industry is faced with the challenges of developing lithographic technology for feature sizes smaller than 22 nm and exploring new classes of transistors that employ carbon nanotubes or silicon nanowires. IBM’s approach of using DNA molecules as scaffolding – where millions of carbon nanotubes could be deposited and self-assembled into precise patterns by sticking to the DNA molecules – may provide a way to reach sub-22 nm lithography
