The Waterbury Democrat., 1936-06-15

SuIIaces EnoCograpnS nave been taken showing some which could completely envelope the earth. Experts, always curious to add to their knowledge of observable things, want to learn more about these flames which might be called tidal waves" of solar heat and energy.
 Odds Favor Clear Skies
 Months of careful preparations will be climaxed when the moon slowly blots out the light from the sun. As typical of the care, the lo- cations for the three expeditions were selected by weather students after rummaging over Q large mass of data submitted by Soviet officials. They asked regarding the probability of cloudless skies, cal- culated where the eclipse would be in the total stage and sought the most easily reached community. Clouds may ruin all the prepara- tions and make the trip 6 disap- pointment and @ failure. Thus special attention was given to the chances for clear skies. The odds now favor the scientists success.
 The Harvard University-Aassa- chusetts Institute of Technology joint expedition will make obser- vations from a camp at Akbulak in Central Asia. At the same loca- ton will be Dr. and Mrs. Irvine o. Gardner, experts from the U. s. Bureau of Standards, who will specialize in photographic obser- vations. The third group will be the Georgetown University Ma tional Geographic Society expedi- tion, which has established head quarters near Kustanai in the Siberian portion of the U. 8. s. R.
 Color Photographs Sought
 All three expeditions will at- tempt to catch pictures of the corona both in black and white and in color. Previous color pho- tographs of the suns |" rim" have not been as distinct as experts have wanted. Artists have made hurried sketches of the colors, but solar experts have alweys wanted some reproduction which did not depend 50 much on the human el- ement, always considered vari- able factor.
 The Georgetown University Ma. tional Geographic Society expedi- tion is not only going to take color photographs on the recently de- veloped film which is expected to give better results than previous efforts, but it is testing for the first time 6 scheme to take pie lures in each of the six primary colors. These films later will be mixed" to obtain e composite picture of the entire, full.color effect.
 Six color filters will separate out the red, orange, yellow, green, blue and violet. Black and white photographs will be taken of each. These six colors cover the entire visible spectrum, scientists ex- plained. Thus when the six plates are colored to the correct shade and blended the result will be a near-perfect color reproduction.
 Chemical Secrets Sought
 The Harvard University Massa- chusetts Institute of Technology expedition will give special atten- ton to studying he spectra of the sunlight. This should yield new information on just what chem- ical elements are in the sun Earlier observations of the sun and stars have informed scientists that clements unknown on earth xisted in the foreign body. Sub- sequent research in physics then has confirmed that a faint trace oi the same element existed on eart!l and had not been discovered until students concentrated on the par ticular section in which they knew such an element existed.
 The Gardiners' activities will be photographic studies. They have q cannon-like camera which 1t is hoped will result in better photo graphs of the suns edge thar have ever been taken before.
 The eclipse also will give astron- omers another chance to check the running time" of the solar system. On the basis of available data, students have worked out the exact second when the total eclipse should occur. If their pre- dictions are incorrect, 1t will show that something has gone wrong with the earth's or moons rota- | tinY