IN some work here on the focusing of rotationally symmetrical electron beams in the energy-range 20–70 volts, we have come across cases of standing-wave patterns in the electron emission from the ...

New paradigm promises to save energy while keeping CMOS ...

One of the most fundamental interactions in physics is that of electrons and light. In an experiment, scientists have now managed to observe what is known as the Kapitza-Dirac effect for the first ...

For the first time, physicists have watched a beam of positronium, a short‑lived atom made of an electron and its antimatter ...

Time mirrors are very cool. They seem a bit magical, undoing the damage that time has done, at least under the right circumstances. For light and for water waves, we know how to make a mirror that ...

Visitors to Saint Paul’s in London are often astonished by the cathedral’s whispering gallery, where words spoken in a whisper along the curving wall of the dome can be heard anywhere along that same ...