Abstract: A golf swing trainer comprising a golf club shaft configured to be held by a user and allows the user to execute a golf swing; and an arm attached to the golf club shaft, the arm being configured to be attached to the user's forearm, wherein when the user swings the golf club shaft, the user's forearm and the golf club shaft substantially fall in a single plane.

Abstract: Non-invasive moisture-sensing within concrete (such as concrete buildings, bridges, etc.) or a polymeric material may be accomplished by a capacitor structure comprising a porous material built inside the concrete or polymeric material. The capacitance measurements change based on the amount of moisture in the porous material. Moisture-sensing can be monitored remotely (including for submerged and other structures), relatively non-invasively, and in a repeatable and reversible fashion without intermediate conditioning or resting.