How to select windows based on their energy efficiency? By energy efficiency I mean air infiltration…which kind of window keeps the air in the house better? How would you determine which brand of window has better insulation?? Thinking about Sunrise windows or Home Depot (Anderson windows) HELP thanks the R value BASF Video: Energy efficiency [...]
Solar energy aparatus for home use/electricity? I need to have solid info about good solar energy apparatus that can be used in a sunny location to produce electricity for my home. I prefer makers and industries in the UK and how to look them up. The now-defunct Clear Skies program still has a supplier list [...]
Do all the stars we see in the sky belong to other solar systems and galaxies? I mean,if every star is a sun,then all of them must exist in other solar systems. P.S Happy New Year everyone! the stars you can see with the naked eye are all in our own galaxy. stars in other [...]
