It starts with a question no gunner can answer in the moment: how many shells will it take to bring down that one-aircraft—a hundred, a thousand, or tens of thousands? The truth, learned the hard way ...

A linear equation is drawn as a straight line on a set of axes. To draw the graph we need coordinates. We generate these coordinates by substituting values into the linear equation. STEP 1 - Draw a ...

Following a dry summer, gardeners will be even keener than usual to lavish composts, manures and other bulky organic matter on their garden to feed soil and plants and to boost moisture-holding ...

In a study published in Physical Review Letters, physicists have demonstrated that black holes satisfy the third law of thermodynamics, which states that entropy remains positive and vanishes at ...

Any project, supported or not by a committee, that is currently being worked on or is considered active, and will have an end date. The important questions in physics and astronomy change as we learn ...

Certain materials feel a magnetic force. A magnetic force can be either attraction or repulsion. How to make a magnetic compass Learn how to make a magnetic compass.