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The article discusses use of durable goods in locomotives, airplanes, and the big machines which turn the wheels of heavy industry. Topics discussed include industrial designers including Henry Dreyfuss, who in 1929 joined R. K. 0. and was retained by them as art consultant, Norman Bel Geddes, who was most controversial figure in industrial designing, and Raymond Loewy, a recognized authority on aerodynamics.

The article discusses the characteristics, types and aerodynamics of boomerangs. The ideal orbit of its flight, assuming that it is thrown correctly, is shown. Understanding its aerodynamics is facilitated by the analogy to an airfoil or airplane wings. The answer to how a boomerang moves under the influence of the given aerodynamic forces and torques is explained.

The article investigates on how to build a wind tunnel that achieves supersonic speeds with a vacuum system. The purpose of such tunnel is to provide a means of simulating the patterns made by the flow of air around an object moving faster than the speed of sound. A tunnel usually has five main elements: (1) a chamber in which the model undergoing tests is supported, (2) a device for accelerating the entering airstream, (3) a device for suppressing turbulence in the airstream, (4) a duct for disposing of turbulence downstream from the model, (5) one or more instruments for observing the behavior of the airstream.

The article discusses the method and mechanism for photography of air currents. Details are given on how to build an accurate Focault pendulum. Comments and instructions are presented from Robert Walan, a senior at the Carnegie Institute of Technology who built an apparatus for photographing air-density that records convection currents and flow patterns and represents zones of different pressure. Walan explains that his system is essentially a means for making what are called Schlieren photographs, only with the difference that what it recorded are refraction effects in colors, rather than in monochrome.

The article presents an analysis on the dynamics of a golf club and the aerodynamics of air-supported vehicles, as presented by engineer Louis A. Graham. Graham's experiment hopes to scientifically explain the velocity and acceleration of the travel of the club head throughout the swing, so as to provide amateur golfers with basic information relating to basic techniques in golfing. It has made use of a tripod-mounted camera, the resulting shots therein explains the graph illustrated by the author. The aerodynamics of air-supported vehicle was also discussed along with the experiments presented by the author.

The article presents an experiment related to circling flight motion of the birds, and factors that affect its flying motion. According to the author, the ability of the birds to soar even in small and weak thermals is due to aerodynamics efficiency and a meteorological phenomenon which is supplied by the sun. Thus, the author added, causes its automatic maintenance of the flying position for both horizontal and vertical axes.

The article focuses on the progress in the research on vertical takeoff and landing (VTOL) aircraft in the U.S. and abroad. The program has been a three-way collaboration among the National Aeronautics and Space Administration. Advantages of the VTOL airplanes are becoming feasible. There are several reasons why the helicopter seems likely to retain considerable range of utility despite certain drawbacks in the design.

The article discusses the ultrahigh-altitude aerodynamics of flying objects in the U.S. This article is an account of some of the things learned in the experiments at Berkeley on rarefied gas dynamics conducted by Hsue-Shen Tsien of the California Institute of Technology in 1946. Experimental laboratories were later set up at the University of California and at the Ames Aeronautical Laboratory of National Advisory Committee for Aeronautics near Sunnyvale, California.

The article explores the possibility of reducing the flight speed of an airplane by increasing the lifting power of the wings. The key to the problem is how to control the boundary layer to prevent turbulence and separation of the air flow from the wing. The idea of air circulation around the wing may be very helpful and may be the considered as the seed of modern aerodynamics.

The article offers insights on how to shape a surface to a desired contour, vis-a-vis hydrodynamic and aerodynamic shapes. The author has discussed the concept of "lift" in aerodynamics, explaining how shapes creates forces perpendicular to the streamlines causing the fluid to flow at greater velocity on one side of the object than on the other. He has also tackled the concept of "drag" in relation to aerodynamics, explaining how it is created by friction between adjacent air layers of different speeds around the airfoil. His discussion on some devices utilized for investigating the forces of fluid flow concludes the article.

The article focuses on the development of an aerodynamic smoke tunnel in the U.S. This smoke tunnel has long been used to gain a better understanding of various flow phenomena. Scientist Alexander Lippisch has made extensive use of the smoke tunnel in designing delta-wing aircraft. The Forrestal Research Center at the Princeton University has operated several smoke tunnel, which is well suited for experiments by amateur scientists.

The article focuses on the aerodynamics of birds. The spectacular flying performance of birds to oceans, deserts and whole continents is a useful mechanism for birds to preserve their internal stability or homeostasis. In addition, the internal and external factors of birds provides a solution to the problems imposed by flight. Birds simply do not deviate from sound design of a flying machine, considering the remarkable adaptations birds in the air, high power and light weight.

Comments on various flying expeditions of the author of the article. Repugnance towards the idea of "sense of balance" as most fliers tell the position of their planes by its relation to the horizon or by instruments; Account of the rhythm that is an inalienable part of an airplane as the hand at the controls must press quickly, but smoothly; Expedition determining the scene taken from some romantic novel as the author revealed that flying in the early dawn over New Jersey meadows, when a white unfocused light filled the sky, he found the air for once so smooth that the plane rode evenly; Comparison of art of flying with other hobbies as it gives a sense of satisfaction to the pursuer.

The article discusses several factors causing crashes of airplanes in the U.S. Among the recent jet crashes were a Boeing 720B fan jet of Northwest Airlines, a United Air Lines (UAL) 720, and a Trans-Canada Air Lines DC-8. It enumerates factors such as the weather, lightning and the jet fuel mixture of kerosene and JP-4 combination of kerosene and gasoline. The article also concludes that question remains whether aerodynamic flaws or faulty techniques of flying in turbulence played a role in the accidents.

Focuses on the success of two bicycle mechanic brothers, Wilbur and Orville Wright, in making the first practical airplane. Information on Wright brothers' initial machine; Description of their stay in Kitty Hawk, North Carolina; Problems faced by Wright brothers on their way to build first airplane; Information on several awards and reward which they received in different countries after their success.