Todor Popstoyanov

5 Flips | 1 Magazine | 2 Following | 1 Follower | @popstoyanov | Keep up with Todor Popstoyanov on Flipboard, a place to see the stories, photos, and updates that matter to you. Flipboard creates a personalized magazine full of everything, from world news to life’s great moments. Download Flipboard for free and search for “Todor Popstoyanov”

SolarAid Power 10 Plus Adventure Kit

A new and sustainable solution to the problem of how to keep your devices charged and ready for action.<p>The SolarAid Power 10 Adventure Kit is an …

WADI: solar-powered water disinfecting device could save 400,000 lives a year

Water is life – without a source of clean water for drinking and cooking, humans become very sick and often die. In wealthy countries, clean drinking …

Better Than A Gun: The Secret To Finding The Best Guard Dog For Your Home

Image source: germanshepherdproblems.com<p>It’s late, it’s dark, and all is quiet. Except for the click of a door lock sliding open. The intruder slides …

How to Superinsulate Your Building

As concerns about energy supplies and global warming continue to be debated, one idea remains clear: The best way to reduce overall energy use is to …

Home Improvement

DIY Ground Source Heat Pump + PV Array -- No Heat Bills!

In this very ambitious project, Jerry goes through all the details on installing a 5000 watt PV system and a 2 ton Ground Source Heat Pump. Together …