Spherical contact lenses have the same lens power throughout the entire optical part of the lens to correct myopia (nearsightedness) or hyperopia (farsightedness). More and more people are turning to ...
The Eternal Question: Should you buy a backpack or suitcase? I have a confession: I hate suitcases for long trips. If youre traveling around the world, your luggage is going to get thrown about and pi...
Gas permeable lenses – also called GP or RGP lenses – are rigid contact lenses that look and feel like PMMA lenses (see below) but are porous and allow oxygen to pass through them. Because...
The traditional acoustic violin stretches four strings from tuning pegs to a tailpiece, over a bridge made of maple that transfers sound vibrations to the soundboard. While there are electric pickups ...
A popular engagement ring style is to mimic a tension style setting (like you see above), but in fact the diamond or gemstone is set in the band, typically as a bezel setting. In the two photos below,...
Are residential solar panels worth it? Estimate residential solar panel cost. Solar panels aren’t cheap: with installation, an average residential 5kW size system runs between $3 and $5 per watt...