Notebook

Humans

Quack Gadgets

Have you ever heard of the Battle Creek vibratory chair, the psychograph, or the violet-ray generator ? The Minneapolis-based Museum of Questionable Medical Devices provides information about these and many other items in its large collection. Includes photos, brief histories, and links to related Web sites. Go to: http://www.mtn.org/quack/devices/devindx.htm

Earth

Past and Future Earth

Curious about what Earth’s continents and oceans might look like 50 million years from now? Geologist Christopher R. Scotese of the University of Texas at Arlington has created a Web site devoted to plate tectonics and Earth’s geography and climate, from the deep past to the distant future. The site features maps of Earth, animations, […]

Math

Dimensions of Math

A colorful, interactive poster serves as a portal to the realm of dimension, with destinations ranging from Flatland to hyperspace. Meet authors Madeleine L’Engle (A Wrinkle in Time), E.A. Abbott (Flatland), and Michio Kaku (Hyperspace). Ponder Penrose tilings, gravitational lenses, and tic-tac-toe on a torus. Play with geometric shapes. This fascinating Web site was originally […]

Humans

From the August 23, 1930, issue

alt=”Click to view larger image”> STRICTLY AMERICAN Indian architects and sculptors of the American tropics in prehistoric times had strikingly original ideas. On the cover you see the entrance to the beautiful Temple of the Warriors at Chichen Itza, in Yucatan. The Toltecs, who conquered the Mayas at Chichen Itza, remained in the city and […]

Humans

From the August 16, 1930, issue

MILLION VOLT GLOBE The shiny metal globe which the front cover pictures was spun on a lathe from two flat sheets of copper one-eighth inch thick. It will be used with another by the Westinghouse Electric and Manufacturing Company to measure man-made lighting of 2,000,000 volts and greater. When high potentials are measured by sphere […]

Humans

From the August 9, 1930, issue

A FISH WITH HANDS A fish of more than ordinary piscine talent is sometimes found in the drifting masses of gulfweed or Sargassum in the great mid-Atlantic eddy. It is only a little fish, a couple of inches long, but it can use its two pectoral fins for some of the functions of hands. It […]

Humans

From the August 2, 1930, issue

SHOOTING STARS, THE STORY-TELLERS OF THE UNIVERSE Of fortunate rarity are celestial visitors like the huge meteoric mass that dug the famous Meteor Crater in Arizona about 2,000 years ago. This scar on the face of the earth near Winslow, Ariz., is four-fifths of a mile across and 450 feet deep. It is shown on […]

Humans

From the July 26, 1930, issue

DID THE MOUNDBUILDERS COME FROM MEXICO? Were the Indians who built the mysterious mounds of the great interior valley of our country kinsmen to the Mayas of Yucatan and the other highly cultured peoples of the Mexican plateau? Are the decidedly Maya- and Aztec-like sculptures taken from mounds in the Southeast really witnesses to an […]

Paleontology

Pretty Pollen

The pinup of the pollen grain of the month is just one of several intriguing features at this University of Arizona Web site devoted to palynology–the study of the microscopic, decay-resistant remains of plants and animals. The site provides definitions, illustrations, a brief history, a section for kids, and examples of applications in archaeology, paleoecology, […]

Earth

Earth Views

The “Global View of the Earth” Web site offers lesson plans and other material for middle school teachers interested in classroom use of images taken by NASA’s Landsat-7 satellite. Students learn about the spacecraft and try to identify “mystery” images–full-color, visible-light images of objects such as airports and bridges, as seen from Landsat more than […]

Tech

Chip Collection

The Smithsonian’s “Chip Collection” Web site offers all sorts of nuggets of information for those interested in the history of integrated circuits. Developed and frequently updated by Nance L. Briscoe of the National Museum of American History, the site features more than 2,000 images, a “chip talk” glossary, examples of chip graffiti, information on patents, […]

Humans

Medieval Medicine

For a glimpse of medicine in medieval times, check out the National Library of Medicine’s illustrated catalog of Islamic medical manuscripts. Visitors to the Web site can also get a brief introduction to the history of Islamic medicine and its role in European history, find biographies of important Islamic physicians, surgeons, and scholars, and browse […]