Yes, Japanese scientists have successfully transmitted energy wirelessly, which is a key step to making solar power generation in space a possibility. The team at JAXA used microwaves to deliver 1.8 kilowatts of power – enough to run an electric kettle – through the air with pinpoint accuracy to a receiver 170-feet away. Continue reading for a video an more information.
Aside from the Guatemala sinkhole 2010, there have been others that made headlines in the past few decades. A sinkhole basically “happens when water erodes solid bedrock, carving an underground cavity that can then collapse.” Click here to see them all.
The Guatemala sinkhole fits into a broader use of the term, which refers to any sudden slump of the ground’s surface. Instead of solid bedrock, much of Guatemala City rests atop a layer of loose, gravelly volcanic pumice that is hundreds of feet thick.
[via NationalGeographic]
In this GT segment, “legendary coder John Carmack continues his walkthrough on one of the most powerful gaming engines of all time: Tech 5.” Videos after the break.
It was demonstrated for the first time at the WWDC 2007 by John Carmack on an eight-core Apple Macintosh computer; however, the demo only utilized a single core and a single-threaded OpenGL implementation running on a 512 MB 7000 class Quadro video card. The engine is completely cross-platform, which means that there is no need to change anything in the engine code when switching platform