Android sdk vs AndEngine vs libGDX

As the title says, soon I will begin to work on a game for android, so I decided to do a little test between Android SDK, AndEngine and libGDX. The results left me so amazed that I decided to put a video on youtube, hope you enjoy.

Joule Thief

Well ... it has been a whole month without a single post ^^ but this time it was for good reason, I was in school exams and they are going pretty good!

Now on-topic.

In these last days I've been thinking about many ways to save and produce electric energy. Almost none of the ideas resulted, but there is one that has worked wonderfully and that's what I've been talking about, it's called "Joule Thief".

According to wikipedia, joule thief is a term used to describe a self-oscillator energy booster, simple and low cost.

The peculiarity of this small circuit is to use almost all the energy of a battery cell, even after reaching that point that supposedly the battery is exhausted.

This is a possible electrical schematic, although there are many variations

And at the pictures of construction

For the coil, I used a metal core taken from a computer, the number of turns and the thickness of the wire was random.

Now the usefulness of this depends on our imagination, maybe light an LED with a single 1.5V cell, even use an old battery to recharge a Ni-Cd battery...

Good Joule Thief's :P

The internet status: SOPA

Hi, it makes a long time since I wrote anything. I hope you had a good new year, because I hadn’t...

Now on-topic, usually I’m not interested about news, I just don’t have patience, but in these last days I've been following some tweets, the central topic: SOPA and PIPA

But what is this?

Well…in Portuguese SOPA is soup and PIPA is barrel xD

According to wikipedia

“The Stop Online Piracy Act (SOPA) is a United States bill Introduced by U.S. Representative Lamar S. Smith (R-TX) to expand the Ability of U.S. law enforcement to fight online copyrighted Trafficking in counterfeit goods and intellectual property”

“The PROTECT IP Act (Preventing Real Online Threats to Economic Creativity and Theft of Intellectual Property Act, or PIPA) is to proposed law with the Stated goal of giving the U.S. government and copyright holders additional tools to curb access to "rogue websites dedicated to infringing or counterfeit goods "”