सौरोर्जा – Saurorja – is the Sanskrit word for Solar Energy. Saura means Solar and Oorja or Urja means Energy. We receive 173 petawatts on earth, but the Sun produces 384 yottawatts of energy in total.
Indian Railways is one of the largest consumer of both diesel oil and electricity in India. It uses 2.7 billion litres of diesel and around 20 billion KWh of electricity per year for traction purpose. Additionally another 2.5 billion KWh is used for non-traction related usages like powering stations and other things. This 2.7 billionContinue reading “Could Indian Railways be Solar self sufficient?”
Evaporative coolers are very useful in dry and hot climate. Pour a lot of water and run the fan, and get the cool moist breeze. It is a simple device and it is good for what it provides – fresh cool air. For a long time I have been thinking how to compare the evaporativeContinue reading “Evaporative Cooler and Tonnage”
Let us start with two tricky questions. Pause here and take a wild guess. Q1: Suppose the entire Lake Baikal is drained on Russia, how deep a water pool would it create? Q2: Suppose the water flowing in the Amazon river is used to fill an equivalent of Lake Baikal, how much time it wouldContinue reading “The story of water from two continents: the Amazon River and Lake Baikal”
Recently I got the source code of one particular Android App from github and I wanted to build that on my Debian Unstable latest. I was just trying to see how I could build without installing the IDE. This is what I did. apt-get install default-jdk From Android site I downloaded both commandlinetools and gradle.Continue reading “Building Android App without IDE from the command line”
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