Ebola’s end: History’s lessons

Ebola’s end: History’s lessons
As Ebola ravages West Africa, we seek answers in past epidemics. How did cholera, plague, smallpox end? Lacking drugs or a vaccine, how More »

Making spears

Making spears

Spears helped our ancestors eat and defend themselves. Spearmaking required ingenuity, experiments and communication. Symmetrical stone More »

Patent wars!

Patent wars!

How do patents work? What is “new, non-obvious and useful”? What will happen after the biggest change in patent law in 60 years? More »

Calendars: A fix needed?

Calendars: A fix needed?

A “permanent” calendar could finally answer the annual, “Uh, what day is New Year’s eve this year?” question. This calendar would place More »

Bookin’ science: Best of the batch.

If (gasp!) the subject is too big for a Whyfile, hit the books. Here, we review four great science books, on evolution, environment,

The importance of being Einstein

Black and white photo: closeup of Einstein's face with blackboard in background

Experiment finds Earth “dragging” spacetime, as Einstein predicted. Einstein knew his physics. Bending light, gravity lenses, shifting More »

Nuclear Wizard Dies

Edward Teller helped invent the hydrogen bomb, then pushed missile defense. By public advocacy and secret research, he changed the 20th More »