50 Years Ago
- Humans
From the June 9, 1934, issue
Mexican archaeology, dry ice for shrinking metals, and choosing optimal flight paths for airplanes.
- Humans
From the June 2, 1934, issue
The first chimpanzee twins born in captivity, increased speed and safety for aircraft, and a new pH indicator.
- Humans
From the May 26, 1934, issue
Extracting bromine from the sea, a new treatment for cancer, and a novel altimeter.
- Humans
From the May 19, 1934, issue
Preparing for a stratospheric ascent, the great dust storm of 1934, and the invention of the electron microscope.
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From the May 12, 1934, issue
William M. Welch and public health, a thymus-gland extract for speeding up growth, and mass-three hydrogen.
- Humans
From the May 5, 1934, issue
Steel pipes of the Boulder Canyon project, diphtheria and the blood-brain barrier, and weather effects of volcanic eruptions.
- Humans
From the April 28, 1934, issue
An ancient crocodile, how loudness affects pitch, and observing the sun's corona.
- Humans
From the April 21, 1934, issue
Archaeological explorations at Ur, creating elements of mass three, and bouncing radio waves off the moon.
- Humans
From the April 14, 1934, issue
Yawning spells, disagreeable alcohols from anaerobic respiration, and how antibodies protect adults from disease.
- Humans
From the April 7, 1934, issue
Pouring the 200-inch glass disk for a new telescope, a new man-ape link, and planetary weather cycles.
- Humans
From the March 31, 1934, issue
A desert earthquake, producing bromine from seawater, and nerve damage from alcohol consumption.
- Humans
From the March 24, 1934, issue
A meteorite photo, the discovery of triple-weight hydrogen (tritium), and a new mirror for movie production.
