Tuesday, October 21, 2014

Originally shared by John Poteet


Originally shared by John Poteet

Positives: This happens nearly every morning in California. The sun rises and 4 gigawatts of industrial solar power comes online. There's another 2.7 gigawatts of residential rooftop solar that doesn't show on this graph. So what we have here are six nuclear power plants worth of power that are producing minimal carbon emissions and no radioactive waste.

Of course, this is a fraction of the solar power Germany produces on a clear day so California can do better. It's still a very good thing.

image: screencapped from....
http://www.caiso.com/Pages/TodaysOutlook.aspx#Renewables

#solarenergy   #california   #climatechange

On the comet...

http://www.esa.int/var/esa/storage/images/esa_multimedia/images/2014/10/comet_on_18_october_navcam/14986047-1-eng-GB/Comet_on_18_October_NavCam.jpg

At first glance it looks like a moonlit mountain scene, but on closer examination several strange things become apparent.

First, gravity is wrong for a mountainscape. There are many loose boulders sprinkled around in places where they would slide away, if this was a view of earth.

Second, in the sandy (sand??) area in the lower right there appear to be dune-like ripples, which normally form from wind, which would imply some kind of atmosphere.  But of course, this comet is floating in outer space, and has an extremely weak gravity.

But third, there appears to be some kind of haze in the photo.  Perhaps dust, perhaps gas coming from the comets interior.  Does this have any relation to the dune-like features?
http://www.esa.int/var/esa/storage/images/esa_multimedia/images/2014/10/comet_on_18_october_navcam/14986047-1-eng-GB/Comet_on_18_October_NavCam.jpg

Tuesday, October 14, 2014

Originally shared by Sophie Wrobel

Originally shared by Sophie Wrobel

anonabox: Surfing anonymously just got easier

This is a very interesting kickstarter project - because it solves one of the things that many geeks forget about: making secure and anonymous internet access accessible to your average idiot.

The anonabox is an open-hardware, open-source box that contains, more or less, a pre-configured Tor access point. That means, connect the anonabox between your router and your computer, (or for wireless users, connect to the anonabox wireless network and turn off your router's wireless network) and you be surfing the internet over a secure, encrypted connection being sent over Tor.

Previously, using Tor involved installing and configuring some rather nerdy software, and blindly trusting that you didn't forget some configuration option along the way. For an average internet user, that's a world of difference in usability. Kudos to the anonabox team for solving their installation hurdle! Now, let's see how much market entry will cost, and whether this will help to promote smarter, more secure internet usage.

/via Danial Hallock 
https://www.kickstarter.com/projects/augustgermar/anonabox-a-tor-hardware-router?ref=discovery