Alexander Kruel

"William Wulf and Anita Jones have written a brief, tantalizing, and important article in Science: “Reflections on Cybersecurity”. They point the way out of a tangle of security problems (not all, of course) that costs billions of dollars in losses billions in countermeasures, and billions more in opportunity costs — some known and some not even imagined." - Alexander Kruel from Bookmarklet

"Scientists have long suspected that Mars was once a wet place, and that water helped to shape the geography we see there today. Now, thanks to a study published in the Journal of Geophysical Research, we don’t have to simply imagine what a watery Mars might have looked like long ago—geographers have created this new map of the Red Planet covered in blue water." - Alexander Kruel from Bookmarklet

"Physicists in the Netherlands are the first to show that spin-polarized electrons can be injected into silicon at room temperature. The team injected the electrons into both p-type and n-type silicon and measured how long the polarization lasted. Although the lifetime was shorter than expected the physicists believe it is long enough to support the development of spintronics devices." - Alexander Kruel from Bookmarklet