Python -O won’t magically make every script faster, but in the right workloads it’s a free win—here’s how to test it safely.

Day three of F1's private shakedown in Barcelona saw Racing Bulls' Arvid Lindblad suffer a scare and Williams announce their testing return. After mixed conditions on Tuesday, the teams returned to ...

Lee Zeldin, the E.P.A. administrator, revived a plan created during the first Trump administration to end the testing of chemicals on mammals. By Lisa Friedman The Environmental Protection Agency will ...

At one point, motorsports testing was a free-for-all where teams could test whenever and wherever they wanted. Today, sanctioning bodies have largely saved teams from themselves. Rather than spending ...

The expanded A/B testing options will automatically apply titles and thumbnails that earn the highest watch time. The expanded A/B testing options will automatically apply titles and thumbnails that ...

YouTube's title A/B testing is now rolling out globally to all creators with access to advanced features. Creators can test up to three titles, thumbnails, or title-thumbnail combinations. Tests run ...

Washington — President Trump directed the Pentagon on Wednesday to resume testing of nuclear weapons "on an equal basis" with other countries' tests, possibly ending a decades-long U.S. pause that ...

"We've halted many years ago, but with others doing testing I think it's appropriate to do so," the president told reporters aboard Air Force One. Experts say that the resumption of testing would be a ...

GYEONGJU, South Korea — President Donald Trump said Wednesday he had instructed the Defense Department to “immediately” start testing nuclear weapons "on an equal basis" with other nations. “Because ...

BUSAN, South Korea — President Donald Trump appeared to suggest the U.S. will resume testing nuclear weapons for the first time in three decades, saying it would be on an "equal basis" with Russia and ...

President Donald Trump on Thursday vowed to begin testing US nuclear weapons “on an equal basis” with Russia and China, heralding a potentially major shift in decades of US policy at a time of growing ...