Here was a Beinecke of guitars. Margouleff explained the sorting system—make, model, serial number, with a chronological overlay. Gibsons, Fenders, Martins, Gretsches, D’Angelicos. In the open ...

Air Force One plays a critical role in transporting the president and his staff across the world, and over the years, the aircraft has evolved to match the ever-expanding world leadership role with ...

Several scientists put forth suggestions for how this might occur, but it was Levene's "polynucleotide" model that proved to be the correct one. Based upon years of work using hydrolysis to break ...

Our current pick for the best iPad for most people is the base-model iPad because it has nearly all of the best features the iPad has to offer at an approachable price. Read on for our full ...

Try using fruit and vegetables to make a butterfly life cycle model. Create an edible life cycle for a frog or ant. Butterfly wings are symmetrical; practice drawing a symmetrical butterfly. Science ...

This tool allows you to learn about various geometric solids and their properties. You can manipulate and color each shape to explore the number of faces, edges, and vertices, and you can also use ...

List your movie, TV & celebrity picks.

List your movie, TV & celebrity picks.