
Reflections on the Flat-Earth Movement
How Do We Know What We Know? Flat-earthers raise an excellent epistemological question: how do we know what shape is the earth? For three decades, I asked this very question of students in the first…

How Do We Know What We Know? Flat-earthers raise an excellent epistemological question: how do we know what shape is the earth? For three decades, I asked this very question of students in the first…

Life as a Giraffe Towering tall over the African savanna, the giraffe looks as if it belongs in the circus. It strolls on stilt-like legs, and its neck parades high in the sky. But the…

Plants and fungi trade resources in a mutually beneficial relationship. This is known as symbiosis. And it’s a complicated exchange, as this summary of a new study explains in New Scientist: But it turns out…

At a Glance Naegleria fowleri (Fig. 12) is a free-living microscopic ameba and causes a rare and devastating infection of the brain called primary amebic meningoencephalitis (PAM). (It is also known as Naegleriasis.) This ameba…

I must admit, now and then I do commit the sin of coveting! It happened recently after the catastrophic fire at the Notre Dame in Paris which destroyed much of the cathedral’s art and artifacts…