Optical cavities – two mirrors arranged to reflect light multiple times between them – form the basis of lasers and certain ...

A modern take on a classic device.

X-ray imaging is best left to the professionals for a good reason. While the tool is not dangerous when utilized properly, it ...

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This is a valuable study and a promising development for the field of open-source microscopy for educational purposes. The strengths include the low cost of constructing the microscope, impressive ...

Hearing loss is a common problem for many – especially those who may have attended too many loud concerts in their youth. [mircemk] had recently been for a hearing test, and noticed that the procedure ...

3D printers have become an essential aspect of quick prototyping and have reached out to a wide range of makers and engineers. But most of these printers are hobby grade and hence require constant ...

Morse code is a method of transmitting textual information as a series of on-off tones, lights or clicks that can be directly understood by a trained listener without using any special equipment. The ...

Today digital meters are replacing analog meters in every sector whether its electricity meter or taxi fare meter. The main reason for that is analog meters have mechanical parts that tend to wear ...