Need a budget laptop for the kids? Or a powerful one for design work or gaming? Dell sells a huge variety. Let's decode the different lines and look at the top performers (and values) in our testing.

If you’re looking for an affordable Windows machine under $500, a blazing fast gaming beast for those intense matches, or a portable 2-in-1 for school or work, you’ve got plenty of great choices right ...

Physics is the search for and application of rules that can help us understand and predict the world around us. Central to physics are ideas such as energy, mass, particles and waves. Physics attempts ...