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Refuelable Battery


Batteries are the weak link in both off-grid energy applications as well as electric vehicles. Until this obstacle is overcome, these much needed uses will remain niche areas. Since I believe almost all of our problems can be overcome if we set our hearts and minds on solving them, I think effective electric storage technologies will be eventually developed.

There are some new developments hold promise. One of these is a refuelable zinc-air battery. This battery uses zinc pellets in an alkaline electrolyte. It has the advantage that zinc is abundant, cheap and safe. It is also easily recycled. You can read a short PDF file describing the technology – here. The other new development is for what is called a “flow cell” being developed by MIT. This battery uses a liquid lithium-based electrolyte. It also is refuelable.

I remember when I was a boy, carbon-zinc cells were the only batteries around for household use. Alkaline cells were new, exotic and expensive. Now we have cheap rechargeables that dwarf those batteries. What the future holds is anyones guess right now, but it looks bright.

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Food Independence – First Steps

Many of us (myself included) place self-sufficiency in food at the top of our priority list. Despite our best efforts, we inevitably fall short. Why do fail to accomplish this seemingly simple objective? Our forefathers grew most of their own food, so why can’t we? That is the question this article proposes to answer.

The Problem

If we are to find an answer, we must first define our problem. Is total self-sufficiency what we really want? It may be, but unfortunately, we can never achieve such a goal. Even our forefathers could never achieve such a thing. They may have performed what appears to be impossible feats today, such as clearing forests with their own backs, but nevertheless they still depended on a wide-spread system of production for many of their needs. They bought their tools, and many of their basic foodstuffs like coffee, sugar and flour. The first colonies in America half-starved the first year, and were dependent on supplies shipped from England. While we have the aid of vastly improved technology since our ancestors, that makes us even more dependent on established industry for our tools and many of our supplies.

While the first problem with complete self-sufficiency … Read the rest

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Arduino’s AnalogWrite – Converting PWM to a Voltage


When I first started working with the Arduino platform (it was also my first experience with microcontrollers), I was a little surprised that analogWrite didn’t actually output a voltage, but a PWM (pulse-width modulated) signal. After all, the ATmega had a A-D (analog to digital) converter along with Arduino’s analogRead. The complementary analogWrite function was there, but no D-A (digital to analog) converter on the AVR chip itself. Fortunately, there is an easy way to convert a PWM signal to an analog voltage. To do so you only need to implement a simple single-pole low pass filter. Does it sound complicated? It isn’t. There are some great online tools to help. Once you learn how to make one, you can quickly and easily output analog voltages from not only the Arduino, but PICs as well as any other microcontroller that has PWM output.

PWM Primer

Pulse width modulation (or PWM as it is most commonly known), is a way of encoding a voltage onto a fixed frequency carrier wave. Commonly used for radio controlled devices, it is similar to FM (frequency modulation) or AM (amplitude modulation) in what it accomplishes. Each type of modulation scheme has its own advantages … Read the rest

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[Streaming] John Wick (2014) Online Putlocker

John Wick (2014) Full Movie Online Watch Free , English Subtitles Full HD, Free Movies Streaming , Free Latest Films.

Quality : HD
Title : John Wick.
Director : Chad Stahelski, David Leitch
Release : October 22, 2014
Language : en.
Runtime : 101 min
Genre : Action, Thriller.

Synopsis :
‘John Wick’ is a movie genre Action, Thriller, was released in October 22, 2014. Chad Stahelski was directed this movie and starring by Keanu Reeves. This movie tell story about Ex-hitman John Wick comes out of retirement to track down the gangsters that took everything from him.

Watch Full Movie John Wick (2014)

So..do not miss to Watch John Wick Online for free with your family. only 2 step you can Watch or download this movie with high quality video. Come and join us! because very much movie can you watch free streaming.

HD Quality for the movie Download John Wick to watch online for free you have to get the TV screen for a bit or you want to watch John Wick the movie in theater or to enjoy the full movie at your home either way if you have visited this page then that means you wanted … Read the rest

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The Cancer Fraud

Recently I went to the viewing of a friend and neighbor whose life was taken by cancer. Or rather that is what we are told to say and believe. What I mean is that I question whether cancer is the almost certain mark of death we are lead to believe or rather the result of widespread ignorance, quackery and even, dare I say – fraud.

The Accusation

Fraud. That is a strong word, and even stronger when used as an accusation. What is this fraud I am accusing of? And who am I accusing? In order to answer these questions, let us compare cancer to a similar disease; adult onset diabetes. This disease shares many common factors with cancer. Like cancer, its diagnosis translates to nearly certain death. The only thing modern medicine can do for the diabetic is to postpone that death; first by drugs, then by insulin, followed by surgery, dialysis or other medical interventions. Compare it to the medical approach to cancer. The goal is identical – prolong the patient’s life by any expedient means, while the disease continues; its true underlying causes unchecked. Surgery, drugs and such are used on cancer patients which is very similar … Read the rest

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The End of Peak Oil

This stunning article asserts that the era of  “fossil fuels” may not be near the end, but at the beginning. New technologies are permitting the recovery of vast lower grade deposits of gas and oil that contain enough energy to last for centuries. This new development does not even take into account the abiogenic theory of oil formation. This theory holds that oil deposits are not fossil fuels at all, but are being continually produced by ongoing natural processes within the earth. While rejected by western geologists, this theory has experienced a resurgence and is credited with providing Russia the abundance of oil it now enjoys.

Regardless of the means by which energy is discovered and recovered, this good news vindicates yet again that people are our greatest assets. Here at ProvideYourOwn, we reject the overpopulation dogma. It is not resources we lack, but imaginative minds, willing hands, and freedom to create and enjoy the fruit of our labor. These things have given the world the prosperity it now enjoys, and it is these things we must cherish and reclaim if we are to see it continue.

Notwithstanding these developments, we still favor the development of individual energy supplies … Read the rest

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