For big-ticket purchases, I tend to do a lot of research before I open my wallet. I like to at least have the illusion that when I send my money off to a far-away stranger, I’m likely to get back ...

I HAVE found the addition of a double concave lens to my telescope and microscope of so much service that I am anxious to call the attention of your readers to this simple application for increasing ...

Scientists have developed the first flat lens for immersion microscopy. This lens, which can be designed for any liquid, may provide a cost-effective and easy-to-manufacture alternative to the ...

Engineers have invented a lens that enables microscopic objects to be seen from nine different angles at once to create a 3-D image. Other 3-D microscopes use multiple lenses or cameras that move ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. A new "superlens" is so powerful that it could help researchers zero in on germs that were too ...