On August 21–23, 1924, Mars entered an opposition closer to Earth than at any time in the century before or the next 80 years. In the United States, a "National Radio Silence Day" was promoted during a 36-hour period from August 21–23, with all radios quiet for five minutes on the hour, every hour. At the United States Naval Observatory, a radio receiver was lifted 3 kilometres (1.9 miles) above the ground in a dirigible tuned to a wavelength between 8 and 9 km, using a "radio-camera" developed by Amherst College and Charles Francis Jenkins. The program was led by David Peck Todd with the military assistance of Admiral Edward W. Eberle (Chief of Naval Operations), with William F. Friedman (chief cryptographer of the United States Army), assigned to translate any potential Martian messages.

One old lady who had been unable to raise her paralysed arm above her heart for ten years was one of the pilgrims who tested it, and in three days she was able to raise her helpless arm over her head.

My invention relates to orthopedic appliances and has particular reference to an appliance adapted to be worn by the user, after retiring, whereby certain facial muscles will be trained to gradually produce the permanent effect of a smile on the countenance of the person using the appliance. The primary object of the invention is to produce such an effect and to counteract the sagging of the muscles around the corners of the mouth, due in most cases to advancing years.

Another object of the invention is to provide an appliance which will gradually train the muscles at the corners of the mouth into the position assumed by the act of smiling, without inconvenience to the user.