Sunday, December 23, 2007
The asteroid passed close to the Earth on November 1, before it was discovered on November 20, 2007. The 2007 WD5 is estimated to be about 50 meters across.
If the collision occurs, the asteroid would hit Mars with a velocity of about 13.5 km/s ( 48,000 km/h approximately ), and releases an energy of about 3 MT of TNT.
Read in NASA
Pictures and Links
Friday, December 7, 2007
Nanotube-producing bacteria show manufacturing promise from PhysOrg.com
Two engineers at the University of California, Riverside are part of a binational team that has found semiconducting nanotubes produced by living bacteria – a discovery that could help in the creation of a new generation of nanoelectronic devices.
Astronomer detects atmosphere of extra-solar planet from PhysOrg.com
University of Texas at Austin astronomer and Hubble Fellow Seth Redfield has used the Hobby-Eberly Telescope (HET) at McDonald Observatory to make the first ground-based detection of the atmosphere of a planet outside our solar system.
Monday, December 3, 2007
NASA approves space mission to unlock the secrets of magnetic reconnection from PhysOrg.com
NASA has stepped up to the challenge of an NRC study by defining a four-spacecraft constellation that will probe known magnetic reconnection sites with the highest-resolution charged particle, electric field and magnetic field measurements yet performed in space.
Sunday, December 2, 2007
Google has decided to take an active policy to address the climate change, becoming a carbon neutral by the end of 2007.
To do this, Google already has taken several steps, working on plans for efficiency and energy saving, investing in renewable energy, such as solar panels installed at Googleplex, the complex in Mountain View, California, promoting the use of products and services based on internet, etc..
The solar panels installed on Googleplex has a capacity of 1.6 MW, approximately one third of the energy peak that the complex consumes, and Google has set a target for the year 2012, to create a new generation capacity 50 MW in renewables for their data centers.
Another commitment for the year 2010 is to reduce by 50% the energy consumed by computers used in data centers, as part of "The Climate Savers Computing Initiative."
Google has also launched "The RechargeIT Initiative" to encourage the reduction of greenhouse gas emissions and reduce dependence on fossil fuels, accelerating the adoption of the technology of hybrid electric vehicles.
Saturday, December 1, 2007
this is my first post at The Jim's Place blog, so it will be short.
For a moment I thought to title this post Hello World, but all people use the same expresion in situations like this, so I prefer to call it "The First Post".