This invention relates to an electric shoe; and its object is to provide, in connection with the sole of a shoe or other article of footwear, a means permanently attached thereto, such that an electric current will be generated under the influence of the foot of the wearer. . .

The sole of the shoe is shown at A, and in the upper surface thereof there are driven or otherwise inset a series of nails or studs B, with each of which there is associated a similar nail or stud C. The studs of the series B are preferably of zinc and those of the series C preferably of copper, thereby providing pairs of elements of dissimilar metals or opposite in sign such that when contacted with by the foot of the wearer from the influence of the warmth or moisture of the person or for other reasons an electric current will be generated, passing from one element to the other through the body of the wearer. The medical and therapeutic effects of such a current are well known, and I claim herein only the specific construction of the means for obtaining such a current.

During a presentation the user may, for example, move forward or backward through presentation slides by simply pushing the sideburns, i.e. by pushing the one or more buttons. Thus, the user can control the presentation slides simply by natural behavior like touching side burns. Additionally, the wearable computing device may comprise a laser pointer that is arranged in or on the wig. The laser pointer may, for example, be arranged on a forehead part of the wig, so that the user may point out relevant information on the projected slide in the above-explained presentation mode.

The compactness of the shield (due to the telescoping of the various sections) permits the owner thereof to easily carry it with him from place to place. Also, due to its compactness, it can be easily and unobtrusively stored in either the office or the home. When an alarm is sounded by civil defense authorities, civilians who have the described shield close at hand would be able to fit themselves with the shield in a very short period of time. A civilian thus outfitted could then place himself against the floor, the ground, or a vertical surface and wait until the explosion has occurred or the danger passed. The fact that each lower section telescopes with the section next above it enables the wearer to raise as many sections as may be necessary to permit walking or running in the event that the wearer is suddenly forced to abandon his position in favor of a safer one.

We constructed a mushroom-based air-cooling device, MycoCooler™, based on previous observations that mushrooms can cool the surrounding air via evaporative cooling. The device was made from a Styrofoam box with a 1-cm–diameter inlet aperture and a 2-cm–diameter outlet aperture. An exhaust fan was attached outside the outlet aperture to drive airflow in and out of the box. The MycoCooler™ was loaded with ~420 g of substrate-detached A. bisporus mushrooms, closed, and placed inside a larger Styrofoam box previously equilibrated inside a warm room (37.8 °C, <10% RH). The temperature inside the closed Styrofoam box decreased from 37.8 °C to 27.8 °C, 40 min after the addition of mushrooms, cooling at approximately 10 °C, at ~0.4 °C per min.