Abstract: A method of assembling an airfoil includes depositing a bonding material on a first end of the tip portion and shaping the bonding material to form a first plurality of features. The first plurality of features correspond to a second plurality of features on a second end of the body portion. The method also includes positioning the first end relative to the second end such that the first plurality of features and the second plurality of features interlock. The method further includes coupling the first end of the tip portion to the second end of the body portion.

Abstract: A method of assembling an airfoil includes depositing a bonding material on a first end of the tip portion and shaping the bonding material to form a first plurality of features. The first plurality of features correspond to a second plurality of features on a second end of the body portion. The method also includes positioning the first end relative to the second end such that the first plurality of features and the second plurality of features interlock. The method further includes coupling the first end of the tip portion to the second end of the body portion.

Abstract: Foot protecting devices including a shell including a top surface and a bottom surface spaced from the top surface and substantially aligned with the top surface, and a cushioning layer proximate the bottom surface, wherein the shell is configured to mount within a user's shoe between a shoe tongue and a shoe's laces, the cushioning layer is positioned proximate the tongue and the shell is positioned proximate the laces. In some examples the foot protecting device includes a plurality of apertures, channels, and retaining elements on the top surface of the shell. In some further examples the foot protecting device includes a selectively removable cushioning layer.

Abstract: Techniques to automatically update software applications are described. An apparatus may comprise a processor and a memory. The memory may store an update component that when executed by the processor is operative to manage updates for an application program. The update component may comprise an update manager and a permission manager. The update manager may be operative to update a file version for one or more application files of the application program and store one or more current file version identifiers for the one or more application files of the application program in the memory. The permission manager may be operative to receive a communication request to communicate with a remote device from the application program prior to communicating information to the remote device, and send a communication response granting or denying the communication request to the application program based on the one or more current file version identifiers. Other embodiments are described and claimed.