The wavelengths generally are in red and blue colour. The most commonly used and the earliest example of an achromatic lens is the achromatic doublet. An achromatic doublet is made from a pair of ...

If the watch has some weight, that is a good sign that the materials are the high-quality materials real Rolex watches are ...

However, did you know a lot of the bots you have been using are actually examples of artificial intelligence? The bot has been designed to mimic human-like responses and perform a variety of tasks.

Executive Editor David Carnoy has been a leading member of CNET's Reviews team since 2000. He covers the gamut of gadgets and is a notable reviewer of mobile accessories and portable audio ...

Nasha is a Managing Editor for CNET, overseeing our sleep and wellness verticals. She is a nutrition, mental health, fitness and sleep science enthusiast. Her passion for mindful and holistic ...

Statement 1: The heating of lead nitrate is an example of ‘X’ reaction. Statement 2: The burning of magnesium is an example of ‘Y’ reaction. (a) H2S is the reducing agent. (b) HCl is the ...

These are the best K-mount SLR lenses we've tested. Images, and the devices that capture them, are my focus. I've covered cameras at PCMag for the past 13 years, which has given me a front row ...

For example, a lamp with an adjustable gooseneck allows you to adjust the lighting directions to reach where you sit. Or choosing a task lighting lamp with a magnifying glass is ideal to see small ...

CBSE Class 10 Science Chapter Wise Important Case Study Questions: CBSE board exams are about to get started. Well, the Class ...

This is the introduction to a five-story project, The Lens’ Embracing Katrina Narratives project. Last summer, in July, a group of influential New Orleanians gathered, with hopes of preparing the city ...

This compact full frame vlogging camera has caused quite a stir, so which are the best lenses for the Panasonic Lumix S9? When you purchase through links on our site, we may earn an affiliate ...