Have you ever sat down and thought “I wonder if a trebuchet could launch a projectile at supersonic speeds?” Neither have we. That’s what separates [David Eade] from the rest of us. He didn’t just ask ...

PICATINNY ARSENAL, N.J. -- Three employees of the U.S. Army Armament Research, Development and Engineering Center, or ARDEC, were awarded with a U.S. patent for their proof of concept work on a ...

Projectile vomiting causes vomit to be forcefully sent out of the body. The causes of projectile vomiting in adults and infants are often different, and treatment varies depending on why it occurs.

An M777 155mm howitzer fires at Yuma Proving Ground's Kofa Firing Range. (Chuck Wullenjohn/U.S. Army) HUNTSVILLE, Ala. — The U.S. Army is slated to begin evaluating a hypervelocity projectile for the ...

Oh yes. I know I already did this. However, it was a long time ago with crappy looking graphs. I can do better. The textbooks say that the maximum range for projectile motion (with no air resistance) ...

I’ve started recreating many of my numerical model tutorials for introductory physics. In the beginning, I had students use spreadsheets to create models. Of course, spreadsheets aren’t very good for ...

Vomiting is something that everyone will experience at some point. It’s typically accompanied by a wave of nausea, and a queasy feeling in the stomach afterward. ‌ Projectile vomiting is when your ...

This is because projectile vomiting is not just throwing up. It involves more force. Sometimes, a child’s vomit, when "released," can go flying across a room. A child who vomits way too much and with ...

Archaeologists working in a cave in northern Vietnam have identified what they describe as the oldest known case of one person harming another in mainland Southeast Asia. The victim is a man who lived ...