Low-cost, DIY air purifiers are proving to be just as effective as expensive commercial units at protecting indoor spaces ...

Researchers have developed a low-cost, durable, do-it-yourself (DIY) air cleaner that works as well as more expensive HEPA ...

Nishikas have four lenses and create four separate half-frame images by splitting the four photos across two frames of film. In contrast, [Joshua]’s DIY eye uses three plastic lenses from ...

Lenses are a necessary part of any head-mounted display, but unfortunately, they aren’t always easy to source. Taking them out of an existing headset is one option, but one may wish for a more ...