There are two common methods for creating an object capable of flight. The first involves a craft that has a density lighter than air. This allows the object to float in the atmosphere. The second form of flight focuses on the use of thrust to propel an object through the air.Continue Reading
The common balloon is the simplest example of a lighter-than-air object. A balloon filled with a low-density gas such as helium or hydrogen either hovers or rises. The altitude of the balloon can be controlled by adding or subtracting weight.
The second method mentioned is the kind used by birds, insects, planes, rockets and helicopters. There are a variety of ways for a flying object to produce thrust. Animals create thrust by beating their wings to cause lift. This process can be duplicated mechanically, but most flying objects rely on motorized propellers or jet engines.
A homemade flying device utilizes any one or a combination of these methods. The form chosen depends on the wishes of the inventor. A small electric motor paired with a battery potentially powers several different styles of craft. There are also numerous small rocket engines available in retail outlets. Control could be maintained by radio contact or a guide wire.Learn more about Technology
No scientific methods can determine the length of time for which a fingerprint lasts on an object. There are many factors that determine how long a fingerprint lasts on any surface or object, with environmental conditions being the primary influence on the longevity of the prints.Full Answer >
When you need a hole to be drilled in the center of an object, there are many different methods that can be used to find the center. For many of these objects, there is a commonly used technique that involves line intersection. To follow this method, you need a center finder head, a metal rule and a very sharp knife that can be used to scratch lines into the object being drilled.Full Answer >
As of 2015, some good Bluetooth earpieces include the JayBird BlueBuds X, Jabra Sports Pulse and Plantronics BackBeat Go 2, according to SoundGuys.com. Engadget.com gives the earpieces a score of 84, 78 and 84 out of 100, respectively, while CNET.com also gives the devices favorable reviews.Full Answer >
To install a GPS navigation system in your dashboard, disconnect the car's battery, and remove the necessary dashboard panels. Connect the GPS wiring, and mount the GPS to the dash.Full Answer >