Open, view, edit, and save PDF files without Adobe Acrobat.
If you would like to go back to your early days of learning math using pencil and paper, this app lets you relive those moments, writing math expressions naturally while delivering solutions immediately.
Can you afford that house? Use Google's mortgage calculator to find out if you can swing the monthly payment.
Superman's solar power actually contravenes the laws of physics, according to a team of students at the University of Leicester.
CNET's tech advice columnist Marguerite Reardon tries to help a confused AT&T wireless customer figure out the best service plan for him and his wife.
SpaceX, Virgin Galactic and other private endeavours are paving the way for a future Mars landing.
Technically Incorrect: Americans reveal themselves to be neurotic about back-to-school online shopping, according to a new survey. But many will be buying laptops, phones or tablets for their little ones.
Collin Burns, 15, shares the techniques he used to become the world's fastest Rubik's Cube solver. It's not as complicated as you might think, but it's not anything anyone with weak fingers should try.
The security flaw affects every version of Flash Player and remained undetected until the catastrophic Hacking Team data breach.
Stephen Hawking gets together with betting chain Paddy Power to offer his brain power in predicting likely winners.
The space agency wants to pump up public anticipation for its new Space Launch System, so it finds a sweet bass line to help.