Temperatures in Cabs of Freight Locomotives Passing Through Tunnels of the Chesapeake & Ohio Railroad (open access)

Temperatures in Cabs of Freight Locomotives Passing Through Tunnels of the Chesapeake & Ohio Railroad

Report issued by the U.S. Bureau of Mines on experiments conducted to improve the cab conditions of freight engines. The temperature, gas content, and other properties are presented. This report includes tables, graphs, and illustrations.
Date: July 1924
Creator: Katz, S. H. & Meiter, Edward George
Object Type: Report
System: The UNT Digital Library
The tobacco flea-beetle in the dark fire-cured tobacco district of Kentucky and Tennessee. (open access)

The tobacco flea-beetle in the dark fire-cured tobacco district of Kentucky and Tennessee.

Recommends methods for controlling the tobacco flea beetle in order to increase farm profits.
Date: July 1924
Creator: Morgan, A. C. & Gilmore, J. U. (John Ulysses), 1893-
Object Type: Book
System: The UNT Digital Library
Velocity and Pressure Distribution Behind Bodies in an Air Current (open access)

Velocity and Pressure Distribution Behind Bodies in an Air Current

The following experiments on the air flow behind bodies were made for the purpose of assisting in the explanation of the phenomena connected with air resistance. The first two series of experiments dealt with the phenomena behind a cylinder. The third series of experiments was carried out behind a streamlined strut.
Date: July 1924
Creator: Betz, A.
Object Type: Report
System: The UNT Digital Library
Experiments on the Resistance of Airplane Wheels and Radiators (open access)

Experiments on the Resistance of Airplane Wheels and Radiators

Experiments were made on the resistance of four airplane wheels of different sizes and coverings and two Lamblin radiators. The results show the important influence of the wheel coverings. The closing of a shutter, which was fitted to one of the radiators, considerably lessened the resistance.
Date: July 1924
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Some Tables of the Factor of Apparent Additional Mass (open access)

Some Tables of the Factor of Apparent Additional Mass

"This note, prepared for publication by the National Advisory Committee for Aeronautics, is a collection of the tables of the factor of apparent mass that have been published up to now. The theory of the motion of solids in a perfect fluid is of the greatest value for the study of most aerodynamic problems, and the additional apparent mass of an immersed solid is the most important characteristic for such theoretical numerical computations. It will therefore be helpful to have the most important values of the apparent mass - for some elementary cases - collected in a convenient form" (p. 1).
Date: July 1924
Creator: Munk, Max M.
Object Type: Report
System: The UNT Digital Library
The Problem of Liquid Fuels (for Aircraft Engines) (open access)

The Problem of Liquid Fuels (for Aircraft Engines)

"The crisis which troubles the world market for liquid fuel in general and for carburants in particular is doubtless one of the most serious ever experienced by modern industry. It is a national crisis of economic and political independence for countries like Italy and France. The solutions suggested for meeting the lack of liquid fuel may be summed up under two general headings: the economical use of the petroleum now available; creation of petroleum substitutes from natural sources within the country" (p. 1).
Date: July 1924
Creator: Gallo, Gino
Object Type: Report
System: The UNT Digital Library
Balloon Flight and Atmospheric Electricity (open access)

Balloon Flight and Atmospheric Electricity

"The air is known to be charged with electricity (chiefly positive) with reference to the earth, so that its potential increases with the altitude and the difference in potential between two points in the same vertical line, divided by the distance between them, gives a value called the "potential gradient," which may vary greatly with the altitude, the nature of the ground and the atmospheric conditions" (p. 1).
Date: July 1924
Creator: Herrera, Emilio
Object Type: Report
System: The UNT Digital Library
Experiments With a Device for Shortening the Glide and Landing Run of an Airplane (open access)

Experiments With a Device for Shortening the Glide and Landing Run of an Airplane

The improvement of airplanes and increased safety of air traffic can be sought in various ways. In the experiments described below, the aim was to find some simple and inexpensive method of modifying present-day airplanes, so as to improve and simplify the process of landing.
Date: July 1924
Creator: unknown
Object Type: Report
System: The UNT Digital Library