Month: November 2008

Micro world

A team of University of Michigan researchers has recently created a set of electron microscope images of carbon nanotube structures depicting images of US President-elect Barack Obama. John Hart, leader of the research team says it wasn’t a political statement, but an attempt to draw attention to what is possible these days with nanotechnology, and imaging at the very small scale. I’ll take him up on this invitation and share with you some other images of very tiny things in our world. For visualizing the scale, most measurements below are in microns – one micron is a millionth of a meter – human hair is approximately 100 microns thick. Rime on a columnar snow crystal. Contact between the snow crystal and the supercooled droplets in the air resulted in freezing of the liquid droplets onto the surface of the crystal. Observations of snow crystals clearly show cloud droplets measuring up to 50 microns on the surface of the crystal.

how does alan do it?

Map update strategy

A device like the Tom-Tom navigation devices can gather incredibly accurate GPS paths that when combined with the user feedback of Tom-Tom and Google Maps users and matched against satellite imagery can allow TeleAtlas to make more maps changes in less time, less expensively than sending out cars and drivers. This capability will grow, going forward, with the introduction of navigation devices that offer a 2 way connection back to TeleAtlas and TomTom. The volume of data, the nature of the data and the timeliness of the data could mean that Map errors in Google could be updated in a 1 to 4 month time frame going forward, rather than the traditional 6-9 months they have taken in the past.

The recent TeleAtlas update includes 50k map edits from community data to the Maps.

Singlehomed Spam

The servers are operated by McColo Corp., which these experts say has emerged as a major US hosting service for international firms and syndicates that are involved in everything from the remote management of millions of compromised computers to the sale of counterfeit pharmaceuticals and designer goods, fake security products via email. But the company’s web site was not accessible today, when 2 Internet providers cut off MoColo’s connectivity to the Internet. Immediately after McColo was unplugged, security companies charted a precipitous drop in spam volumes worldwide. Spam levels fell by 66%.

I am amazed at the non-existent resilience of the spam industry.