Definition: Doppler Effect refers to the change in wave frequency during the relative motion between a wave source and its observer. It was discovered by Christian Johann Doppler who described it as ...
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 ...
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 ...