Making 3D printing truly 3D

Don't be fooled by the name. While 3D printers do print tangible objects (and quite well), how they do the job doesn't actually happen in 3D, but rather in regular old 2D.

The physics of a singing saw

The eerie, ethereal sound of the singing saw has been a part of folk music traditions around the globe, from China to Appalachia, since the proliferation of cheap, flexible steel in the early 19th century. Made from bending ...

Using steampunk to explain quantum physics

What do quantum computers have to do with smog-filled London streets, flying submarines, waistcoats, petticoats, Sherlock Holmesian mysteries, and brass goggles?

Still searching for Planet 9

The solar system has eight planets. In 2006, astronomers reclassified Pluto as a dwarf planet, the same class that contains Eris, Sedna, Quaoar, Ceres and perhaps many more solar system small bodies. These are defined approximately ...

Harvard economist weighs in on new inflation data

Inflation continued to soar in February, with a key measure hitting a 40-year high, according to federal data released Thursday. Driven by higher energy costs, gasoline in particular, the Consumer Price Index rose 7.9 percent, ...

Doctor assessing refugees in Poland sees deep trauma

Humanitarian groups and the Polish government are so far keeping up with the waves of Ukrainian refugees fleeing Russia's invasion, according to Morgan Broccoli, a Harvard physician in Poland, but aid has yet to reach areas ...

How to talk to extraterrestrials

In Steven Spielberg's 1977 film "Close Encounters of the Third Kind," extraterrestrials communicate with humans through a catchy five-note sequence. In Spielberg's 1982 blockbuster "E.T.," a diminutive alien learns basic ...

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