Scientists have subjected Albert Einstein's famous theory of gravity to its toughest real-world test so far and it has prevailed.

WSJ: Einstein Proved Right on Gravity��Again

As we only believe what we see, we decided to run a real-world test by releasing The Witcher 2: Assassins of Kings.

FORBES: CD Projekt Interviews: Digital Distribution. Oh, And Monks.

The National Highway Traffic Safety Administration agrees, of course, which is why it recently launched the first real-world test of vehicle-to-vehicle communication near Ann Arbor, Mich.

FORBES: With Driverless Cars, Once Again It Is California Leading The Way

Like so many CEOs in Northeast picking up the pieces, I would soon find out whether the Core Values on our wall would come to life in this real-world test.

FORBES: The Truth is in the Rubble: Lessons from Sandy

Fortunately, we have enough real-world tornado data to test how well the competing predictions match up with reality.

FORBES: Alarmists Offer A Perfect Global Warming Challenge

Armed with hourly data from its 5, 300 U.S. cash registers and close ties to its own roster of independent suppliers, 7-Eleven can come up with new products faster than Coke--and market-test them in the real world, instead of with polls and focus groups.

FORBES: Gone Flat

Reggie will play the role of Ultimate Ears' first ever "Head of Socio-Musicology" putting his social music theories to the test in a series of hilarious real-world experiments.

ENGADGET: blogger-avatar

Neither I nor any other reviewers have had a chance to test the battery life in real-world conditions.

FORBES: iPhone 5 Is Impressive But Not Revolutionary

As such, we decided upon a simple set of metrics that best approximated real-world threats, that is, to try to test for attacks actually used by attackers.

FORBES: Written by David Lowenstein and Risu Na

The auto industry has been working on so-called V2V technology for a long time but this is the first large-scale test to see how well it works in the real world.

FORBES: Get Ready For Talking Cars That Don't Crash And Get You To Work On Time