Practice projectile motion with fully solved physics problem examples. This video walks through step-by-step solutions to help you understand equations, motion components, and problem-solving ...

The infantry needed something that didn’t require a crew: what they needed was “individual” artillery. Thus, in 1963, the M72 ...

The White House has promoted an account by a Venezuelan guard of how Maduro's security team was disabled by a mystery weapon ...

When dogs start harassing your herd, you are not choosing a caliber in the abstract, you are making a fast decision about ...

Some people have guts of steel, while others are … a little more sensitive. Here are tips for preventing stomach discomfort and motion sickness on trips. By Ruffin Prevost We’ve all encountered that ...

When a night at a restaurant or bar finally comes to a close, most Americans engage in an instinctive ritual. They dig into their wallets, fiddle with their smartphone calculators, and then decide how ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Gordon Scott has been an active investor and ...

Chemotherapy kills fast-growing cancer cells, but it can also harm healthy cells, causing side effects that vary by health, cancer stage, and drug dose. Some effects clear quickly, while others can ...

From attraction to action, sexual behavior takes many forms. As pioneering sex researcher Alfred Kinsey put it, the only universal in human sexuality is variability itself. Human interest in sex can ...

Michael Boyle is an experienced financial professional with more than 10 years working with financial planning, derivatives, equities, fixed income, project management, and analytics. David is ...

Scientific American is the essential guide to the most awe-inspiring advances in science and technology, explaining how they change our understanding of the world and shape our lives.