Definition: An achromatic lens can be defined as a lens which is made by a combination of two different types of lenses carrying different focal powers in a manner such that the images formed by the ...

Definition: Hubble Space Telescope (HST) is a space telescope named after renowned astronomer Edwin Hubble. It was launched in 1990 and is one of the great observatories of NASA. Description: Hubble ...

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With over two decades of experience as an avid gamer and web developer, I lead Xfire by guiding the site's overall vision and content direction, managing infrastructure, and implementing ongoing ...