50 Years Ago

Humans

From the October 5, 1935, issue

A mammoth skull and losing teeth through evolution and diet.

Humans

From the September 28, 1935, issue

A new dam under construction, transmutation of elements, and signs that point to sunspots.

Humans

From the September 21, 1935, issue

The opening of the Hayden planetarium in New York, heavy neon, and the age of the universe.

Humans

From the September 14, 1935, issue

Symmetry in electric transmission lines and the chemical composition of a male sex hormone.

Humans

From the September 7, 1935, issue

Lifelike museum exhibits, a vaccine against the common cold, and the functions of genes.

Humans

From the August 31, 1935, issue

A turtle's trusty armor, a new growth stimulator, and the science of making cranberry jelly.

Humans

From the August 24, 1935, issue

Learning from spiders, a tiny electric motor, and two new cancer-causing chemicals.

Humans

From the August 17, 1935, issue

Cactus gardening for a dry summer, Echo-sounding to locate fish, and suspended animation in humans.

Humans

From the August 10, 1935, issue

A silencer for artificial lightning, a trigger for epilepsy, and light that keeps plants from growing.

Humans

From the August 3, 1935, issue

Testing model zeppelins and defending quantum theory.

Humans

From the July 27, 1935, issue

The geometry of honeycombs, high-energy, man-made gamma rays, and an electrical speed trap.

Humans

From the July 20, 1935, issue

A warning sign for pilots, better methods for producing radioactive substances, and making potatoes grow better with ultrasound.